Laser Power Meter & Energy Meter

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Laser Power Meter & Energy Meter

PMG-P250 Portable Laser Power Meter

User Interface

Key Features:

1. POCKET-SIZE - This mid to high power laser probe is so compact it fits in your pocket!

2. EASY-TO-USE - The touch screen color LCD allows for a friendly user interface. You can make a measurement with just the touch of a button!

3. USER SETABLE - You can set the wavelength, brightness and screen orientation to adapt to your application.

4. DATA LOGGING - Save your data to the internal memory and then transfer it to your PC over the USB connection.

5. FROM LOW TO HIGH POWERS - Thanks to a low noise level and high damage threshold, the Pronto can measure powers from 0.5 W to 250 W.

6. YAG AND CO2 CALIBRATIONS - The PMG-250 comes fully calibrated: every wavelength between 248 nm and 2.5 μm (YAG), and a real calibration at 10.6 μm (CO2). The PMG-250-PLUS has an additional calibration for Single-Shot Energy measurements.

7. HANDS-FREE OPERATION - Place it on a flat surface or use one of the 2 threaded holes for safe use with optical stands.

Specifications:

	PMG-250	PMG-250+
		SSP Mode - Measures in 5 sec	CWP Mode - Measures Power continuously	SSE Mode - Measures in less than 0.5 sec
MAX AVERAGE POWER/ENERGY	25 0W	250 W	8 W	25 J (up to 150 J for pulses >1 ms)
EFFECTIVE APERTURE	19 mm �	19 mm �
INTERFACE	Touch Screen Color LCD Display	Touch Screen Color LCD Display
MEASUREMENT CAPABILITY
Spectral Range	0.19 - 20 μm	0.19 - 20 μm
Calibrated Spectral Range	0.248 � 2.5 μm and 10.6 μm	0.248 � 2.5 μm and 10.6 μm
Noise Equivalent Power/Energy	10 mW	10 mW	10 mW	60 mJ
Minimum Measurable Power/Energy	0.5 W	0.5 W	0.2 W	N/A
Response Time	5 sec	5 sec	1.5 sec	0.26 sec
Measurement Accuracy	� 3 %	� 3 %	� 2.5 %	� 5 %
Min Repetition Period (Max Pulse Width)	N/A	N/A	N/A	4 sec (88 ms)
Display Resolution	1 mW	1 mW	1 mW	10 mJ
DAMAGE THRESHOLDS
Maximum Average Power Density	45 kW/cm2 (at 1064 nm, 10 W, CW) / 14 kW/cm2 (at 10.6 μm, 10 W, CW)
Maximum Exposure Time	6 sec	6 sec	N/A	N/A
Maximum Device Temperature	65�C	65�C	40�C	40�C
USER INTERFACE
Measurement Controls	Wavelength Selection and User Calibration
Measurement Modes	Single Shot Power (SSP)	Single Shot Power (SSP), Continuous Power (CWP) and Single Shot Energy (SSE)
Data Acquisition and Transfer	Simple On/Off Controls, saves to on-board memory and transfers data to the PC using the USB connection
Screen Personalization	Orientation and Brightness controls
Battery Indicator	On-screen indicator with 4 levels
GENERAL SPECIFICATIONS
Display Type	Touch Screen Color LCD
Display Size	28.0 x 35.0 mm (128 x 160 pixels)
Backlight	Adjustable
Internet Upgrades	Via USB port
Data Storage	50,000 pts
Battery Type	Rechargeable Li-ion
Battery Life	17 hours or 4 200 measurements (with brightness set at 25%)
Battery Recharge	Via USB port
Operating Temperature Range	15 - 28 �C (max 80% RH)
PHYSICAL CHARACTERISTICS
Effective Aperture	19 mm �
Absorber	H9
Mounting Holes (for Post)	2 x 8-32
Dimensions	59.0W x 181.4L x 17.0D
Weight	210 g

Portable Laser Power Meter

Innovative Power Meter Offers Unbeatable Convenience

The measurement of laser power is quick and simple with our power meter. The hand held power meter is a low cost, lightweight alternative to bulky, two-piece thermopile power meters and probes, or traditional �meat thermometer� probes. Ideally suited for industrial, scientific, and medical applications, use it when setting up your systems, and as a service tool to ensure maximum performance of your laser system at any time.

Designed to measure power levels from 1 - 250W, the power meter measures output power from the ultraviolet to the far infrared. This makes it the perfect tool for checking the performance of your excimer, argon, diode, YAG, and CO2 lasers, to name just a few.

Automatic data hold and auto ranging make the power meter easy to use. Simply insert the sensor into the laser beam and hold in place for a few seconds. The easy-to-read LCD screen will then display an accurate measurement of average laser power. To take another reading, simply push the reset button, and the power meter is ready to go.

Part number	PMS-250
Range	1-250W
Resolution	0.1W
Wavelength range¹	190nm � 11um
Individual calibrated wavelength¹	10.6um
Target absorption¹, 190nm � 1.1um & 9-11um	0.96-0.99
Target absorption¹, 190nm � 1.1um	0.93-0.99
Accuracy	�5%
Target diameter	22mm
Setting time	<4second
Max. allowable input power (single application)	300W
Max. average power density²	20kW/cm²
Max. peak energy density³	1J/cm²
Max. target temperature	180^oC
Typical target temp. rise per measurement	0.4^oC/W
Typical battery life	5 years (25,000 readings)
Battery type	3xCR2025 lithium
Auto shut-off time	25 seconds
Data hold time	15 seconds
Size	159x30x12mm
Weight	80g

Specifications subject to change without notice.

¹ Typical absorption curve supplied with each meter

² Damage to coating may cause above this value.

³ For pulsed lasers and 50usec pulse width.

Features:

l Wavelength range: 190nm � 11um

l Pocket sized

l Highly accurate

l Instant recycle

l Easy-to-read digital display

l Automatic data hold

l Auto ranging

l Automatic shut-off

l Long life lithium battery

l Audible signals

STPS Series Power & Energy Meter Display

There are 3 types display units available to PS series Power and Energy detectors.

� STPS-LEM2420, a touch panel and function keys make this device comfortable and easy to handle

� STPS-PyroBox, for direct connection between detector and computer

� STLM 100, a read out unit is designed to measure the output power of different lasers in combination with a thermopile detector.

1. STPS-LEM2420

The preamplifiers integrated into the device and the possibility to set sensor sensitivity, allow using a wide range of sensor heads. The large graphic display offers space for a variety of display and analysis choices. The digital display can be used for determining the energy, frequency and average power. The analogue part with its bar graph display is useful for e.g. laser adjustments. Laser stability can be monitored using the data logger and statistics window.

The STPS-LEM2420 is equipped with an USB interface and with a TCP/IP network connector. These ports allow remote control and transferring of all data to a PC. Additionally, a MMC/SD-Card slot to save the data is integrated.

Features:

� For Pyroelectric energy sensor heads and thermoelectric power sensor heads

� Digital display, analogue display, graphic data logger, statistics

� HiRes Graphic display with background illumination

� Wide dynamic range, especially for energy measuring input of correction factors e.g. for mirrors or beam splitters

� Power supply or rechargeable battery with integrated charging unit

� Adjustable trigger level

� External trigger input

� Touch panel

� USB 2.0 interface

� TCP/IP-Network-Connector

� MMC/SD-Card slot

� Software update possible

� Compatible to all heads

A Labview based software for displaying all via USB transferred data is also available. An overview window shows a small analog instrument, Histogram, data logger and also some statistical results. Additionally it is possible to save the showed data into a file. For adjustment work it is possible to switch to the analog instrument or the data logger.

Some basic Labview VIs for own projects are available. Because of the simple data structure and the simulated COM-port it is very easy to implement the device in other programming languages or other operating systems.

2. STPS-PyroBox

Use this interface to connect your pyroelectric detector directly to your PC. It's simple to program and drivers for the most operating systems are available.

� For all PEM detectors

� Two different ranges

� USB 2.0 connection

� Power supply from USB

� Max. rep. rate 100 pps

� Additional external trigger input

� Software for different applications available (Analogue and digital display, data logger, statistics...)

� Data transfer as ASCII code

� Dimensions 90 mm x 62 mm x 30 mm

3. STLM 100

This read out unit is designed to measure the output power of different lasers in combination with a thermopile detector. The maximum power is limited by the used power head. By using this read out unit it is possible to reduce the time constant of the whole measurement system to 1 second. Normally, the time constant of a power head is in the region of 15 to 25 seconds.

For connecting the head to the STLM100 a special adapter is required (15pin Sub-D to BNC). This adapter is used for matching sensitivity and thermal characteristic.

The STLM100 is equipped with a rechargeable battery and charging unit. It is possible to operate the STLM100 either from the power supply or rechargeable built-in batteries so that it remains versatile and can be adapted to most applications. The batteries are automatically charged when the instrument is plugged into the power supply. The batteries can also be charged when the STLM100 is turned off. The charging circuit prevents the batteries from being overcharged. The state of the batteries and the charging circuit is displayed by two LEDs.

� Large analogue display

� 7 ranges (30 mW .. 30 W)

� Power supply and battery operation

� Integrated charging unit

� Time between charges: 30 hrs.

� Time constant 1 sec.

� Solid metal case

� Outer dimensions: 160x180x70 mm�

STPEM Series Energy Detectors

1. STPEM Standard Series energy detectors

The detectors are coated with a black absorption layer which possesses an almost constant absorption in the wavelength range from 185 nm to 25 μm. Particularly beneficial is the comparatively high sensitivity of the detectors which without an additional amplifier and due to the insensitivity to interferences permits laser pulse measurements in the μJ range.

The maximum pulse repetition rate depends on the internal capacitance of the detector as well as the load resistor. All detectors can be directly connected using the BNC connector to the 1 MOhm-Input of an oscilloscope. A small load resistor can be used to obtain the highest pulse repetition rate. Repetition rates of up to 100 Hz are then possible. Load resistors of 100 KOhm are part of the deliverable assortment. The corresponding sensitivity of the sensors is also specified.

Specifications:

Type	STPEM-4	STPEM-8	STPEM-11	STPEM-21	STPEM-34
Active diameter	4mm	8mm	11mm	21mm	34mm
Working range *	1μJ-20mJ	2μJ-75mJ	3μJ-150mJ	5μJ-500mJ	15μJ-1.4 J
Sensitivity in V/J	500-1000@1MW 130-250@100kW	200-500@1MW 50-200@100kW	100-400@1MW 50-150@100kW	50-150@1 MW 30-80@100 kW	20-70@1MW 10-40@100kW
Repetition rates **	80 Hz at 1 MW 120 Hz at 100 kW	40 Hz at 1 MW 100Hz at 100kW	40 Hz at 1 MW 80 Hz at 100 kW	25 Hz at 1 MW 50 Hz at 100 kW	25 Hz at 1 MW 80 Hz at 100 kW
Max pulse duration	2 ms
Spectral range	0.19 - >25 μm
Power density	8 MW/cm� (10 ns - pulse)
Energy density	0,15 J/cm�
Average power	0,15 W/cm�
Accuracy	5 %
Dimension(�xL)	30 x 45 mm�	30 x 45 mm�	30 x 45 mm�	40 x 45 mm�	56 x 45 mm�
Connector	BNC	BNC	BNC	BNC	BNC

* - the lower limit: without amplifier at 1 mV input of an oscilloscope, upper limit: homogeneous illumination of the active area

- Higher repetition rates on request

** - this detector has a switch on the back side to choose between higher rep rate or higher sensitivity

2. STPEM Flat Series energy detectors

These detectors are a combination of our standard sensors with a flat housing. In these smaller housings the BNC connector is replaced by a SMA connector. The detectors are coated with a black absorption layer which possesses an almost constant absorption in the wavelength range from 185 nm to 25μm. Particularly beneficial is the comparatively high sensitivity of the detectors which without an additional amplifier and due to the insensitivity to interferences permits laser pulse measurements in the μJ range.

The maximum pulse repetition rate depends on the internal capacitance of the detector as well as the load resistor. All detectors can be directly connected using the BNC sockets to the 1MOhm-Input of an oscilloscope. A small load resistor can be used to obtain the highest pulse repetition rate. Repetition rates of up to 100 Hz are then possible.

Specifications:

Type	STPEM-10F	STPEM-20F	STPEM-30F
Active diameter	10mm	20mm	30mm
Working range *	1μJ - 20mJ	2μJ - 75mJ	3μJ - 150mJ
Sensitivity in V/J	500-1000 at 1 MW 130-250 at 100 kW	200-500 at 1 MW 50-200 at 100 kW	100-400 at 1 MW 50-150 at 100 kW
Repetition rates **	80 Hz at 1 MW 120 Hz at 100 kW	40 Hz at 1 MW 100 Hz at 100 kW	40 Hz at 1 MW 80 Hz at 100 kW
Max pulse duration	2 ms	2 ms	2 ms
Spectral range	0.19 - >25μm	0.19 - >25μm	0.19 - >25μm
Power density	8 MW/cm� (10 ns - pulse)
Energy density	0,15 J/cm�	0,15 J/cm�	0,15 J/cm�
Average power	0,15 W/cm�	0,15 W/cm�	0,15 W/cm�
Accuracy	5 %	5 %	5 %
Dimension(�xL)	34 mm x 22 mm	40 mm x 22 mm	53 mm x 22 mm
Connector	SMA	SMA	SMA

* - the lower limit: without amplifier at 1 mV input of an oscilloscope, upper limit: homogeneous illumination of the active area

- Higher repetition rates on request

** - this detector has a switch on the back side to choose between higher rep rate and higher sensitivity

3. STPEM HP Series energy detectors

In opposition to our detectors of series PEM Standard this detectors are made for higher average power densities and a higher average power. As absorption coating we use our proven black coating with an very high and flat absorption over a wide wavelength range for these detectors.

With a smaller load resistor higher repetition rates are possible. We deliver the detectors with two calibration values, for 1 MOhm and 100 kOhm. The PEM 45 HP has switch to change the load resistor comfortable. For the PEM20HP an external resistor with BNC-connector is inclusive. On request a flat housing with cable output is possible.

Specifications:

Type	STPEM-20HP	STPEM-45HP
Active diameter	20mm	45 mm
Sensitivity	30 - 50 V/J at 1 MOhm 8 - 20 V/J at 100 kOhm	8 - 15 V/J at 1 MOhm 4 - 8 V/J at 100 kOhm
Max repetition rate	50 Hz at 1 MOhm 150 Hz at 100 kOhm	25 Hz at 1 MOhm 100 Hz at 100 kOhm
Max average power	3 W	5 W
Max average power density	0.5 W/cm�	0.5 W/cm�
Detection threshold	50 μJ	100 μJ
Accuracy	�3 %	�3 %
Connector	BNC	BNC
Dimension(�xL)	46 mm x 47 mm	70 mm x 47 mm

4. STPEM K Series energy detectors

Main applications for this detector are pulse lasers with high power density (Excimer-, CO2-TEA-, Nd-YAG-Laser). With this device we offer a sensor that can be used in a wide range of applications due to a high damage threshold, a short time constant, relatively high sensitivity and high aperture. A special feature is a switch on the backside of the PEM45K allowing a choice between high sensitivity or a short time constant.

In opposite to other coatings these coating is very resistant. So it is possible to clean the surface with most solvents or disinfectants. This fact and the high damage threshold for Excimer lasers make these types ideal for medical applications.

Specifications:

Type	STPEM-20K	STPEM-45K
Active diameter	20mm	45 mm
Sensitivity	10 - 15 V/J at 1 MOhm	1.5 - 3.5 V/J at 1 MOhm 0.5 - 1.5 V/J at 100 kOhm
Max repetition rate	30 Hz at 1 MOhm	30 Hz at 1 MOhm 70 Hz at 100 kOhm
Max average power	3 W	5 W
Max average power density	0.5 W/cm�	0.5 W/cm�
Detection threshold	500 μJ	1 mJ
Accuracy	�3 %	�3 %
Connector	BNC	BNC
Dimension(�xL)	46 mm x 46 mm	68 mm x 51 mm

Permissible power- and energy densities at selected wavelengths:

Wavelength	Excimer, 308 nm, t=20ns	Nd:YAG, THG, 355nm, t=7ns	Nd:YAG, SHG, 532nm, t=8ns	Nd:YAG, 1064 nm, t=8ns	CO2-TEA, 10.6μm,t=0,5μs
Peak power density	50 MW /cm�	65 MW /cm�	70 MW /cm�	120 MW /cm�	10 MW /cm�
Energy density	1 J/cm�	450 mJ/cm�	560 mJ/cm�	970 mJ/cm�	5 J/cm�

5. STPEM HR Series energy detectors

These sensors have a thin metallic or black absorption layer leading to a faster heat transfer to the sensor element. Repetition rates up to more than 2000 pps.

The spectral behavior is flat in the VIS and NIR but for longer wavelengths the absorption properties have to be taken into account. Main application is the use at one wavelength. The metallic coating of the two UV types is more stable in the ultraviolet region than the organic black coating.

Specifications:

	STPEM-12HR	STPEM-24HR	STPEM-12HR-UV	STPEM-24HR-UV
Active diameter	12 mm	24 mm	12 mm	24 mm
Sensitivity	20-30 V/J	20-30 V/J	35-45 V/J	35- 45 V/J
Max repetition rate	750 Hz	750 Hz	2.5 kHz	1.2 kHz
Max average power	2 W	5 W	2 W	5 W
Max energy density (10ns pulse)	80 mJ/cm�	80 mJ/cm�	50 mJ/cm�	50 mJ/cm�
Max peak power density (10ns pulse)	8 MW/cm�	8 MW/cm�	5 MW/cm�	5 MW/cm�
Working range	30μJ - 100mJ	30μJ - 350mJ	30 μJ - 60 mJ	30 μJ - 250 mJ
Accuracy	�3%	�3%	�3%	�3%
Dimension(�xL)	40mm x 40mm	55mm x 39mm	40 mm x 40 mm	55 mm x 39 mm

6. STPEM VUV Series energy detectors

STPEM VUV Series energy detectors are special Design with vacuum flange for 157nm and all other wavelengths where stirring gas or encapsulated beam guiding are used. The detectors are leak tested.

Specifications:

	STPEM-10-VUV	STPEM-20-VUV	STPEM-24-VUV	STPEM-30K-VUV
Aperture	10 mm	20 mm	24 mm	30 mm
Sensitivity	30-50V/J at 1MΩ	15-25V/J at 1MΩ	200 V/J at 1 MΩ	1.5-2.5V/J at 1MΩ
Repetition Rate	50 Hz at 1 MΩ	150 Hz at 1 MΩ	300 Hz at 1 MΩ	50 Hz at 1 MΩ
Max average power	5 W	5 W	5 W	30 W
Accuracy	�5 %	�5 %	�5 %	�5 %
Max energy density (t=10ns)	50 mJ/cm�	50 mJ/cm�	100 mJ/cm�	300 mJ/cm�
Max. peak power density	5 MW/cm�	5 MW/cm�	5 MW/cm�	30 MW/cm�
Detection threshold	100 μJ	200 μJ	5 μJ	1 mJ
Window	MgF2	MgF2	none	none
Connector	SMA	SMA	BNC	BNC
Vacuum connector	KF 16 ND	KF 25 ND	KF 25 ND	KF 40 ND
Dimension(�xL) (incl. connectors)	30 x 54 mm	42 x 72 mm	55 x 65 mm	100 x 96 mm
Read out unit	STLEM 2420 or Scope

7. STPEM E Series energy detectors

The STPEM12E is a 12 mm diam. Sensor, combined with a low noise preamplifier. So it is possible to measure smallest laser energies. To use the whole dynamic range of the built in sensor element, the detector is equipped with a switch for changing the amplification. We offer this detector with two different coatings. For use at different wavelengths we recommend our reliable broadband black coating, whereas for high repetition rates and the UV range we recommend the metallic coating. Higher sensitivities and repetition rates are possible on request.

Specifications:

Sensitivity (switchable)	about 1000 V/J / about 10000 V/J
Working range	5 μJ - 15 mJ, 500 nJ - 1,5 mJ
Repetitions rate	1 kHz (black coating), 5 kHz (metal coating)
Max. average. power	500 mW
Max. energy density [t=10ns)	50 mJ/cm�
Active diameter	12 mm
Read out	Scope
Outer dimensions	25mm x 25mm x 60mm
Sensor types	PEM 12E MC � metallic coating PEM 12 E BC � black coating

8. STPEM USB Series energy detectors

This pyroelectric detector head STPEM45KUSB respectively STPEM45USB is a combination of a robust pyroelectric sensor with a read out electronic with USB-port. It can be connected to an oscilloscope using the BNC-connector or to a PC using the USB port. In USB mode the BNC connector is an external trigger input.

The output signal is transferred to a connected PC via USB. The device is powered from the USBport. To display the measured values and user friendly software is available. The Pyrobox communicates with the computer using ASCII code and is very easy to integrate into your existing software program or system. The PEM USB is an inexpensive solution for long time tests, stability tests and OEM applications.

Specifications:

	STPEM-45-USB	STPEM-45K-USB
Active diameter	45 mm	45 mm
Sensitivity with oscilloscope	8 - 15 V/J	1,5 - 3,5 V/J
Working range with USB	100μJ � 200mJ	1mJ � 1J
Repetition rate	30 Hz	30 Hz
Max. average power	5 W	5 W
Max. energy density	150 mJ/cm�	1 J/cm�
Max. pulse density	8 MW/cm�	120 MW/cm�
Accuracy	�5 %	�5 %
Connector	BNC, USB	BNC, USB
Dimension diameter	68 mm, length 53 mm	68 mm, length 53 mm

Software Application:

9. STPEM 20 USB Series energy detectors

This detector is the result of the combination of a very sensitive and low noise sensor with a high quality preamplifier for lowest laser energies. In comparison to other products in this class of sensitivity our detector features a large aperture and a windowless design.

A comfortable user interface allows a comfortable operation with a lot of display and analysis possibilities. For initial operation no driver installation is necessary. For own applications a DLL and a Labview library is available.

Specifications:

Diameter of active area	20 mm
Measurement ranges	4 ranges: 2,5 μJ, 25 μJ, 250 μJ und 2,5 mJ
Max. repetition rate	80 Hz
Max. energy density	80 mJ/cm�
Detection threshold	250 nJ
Accuracy	�2 %
Connection	USB 2.0
Dimensions	70 mm x 42 mm x 16 mm

USB-controlled Optical Power Monitor

What could be easier?

The SOPM150 is a versatile power monitor for use in the lab and for laser servicing as well as for OEM applications.

Highlights

Low cost and simple configuration. Basic system just includes base module, detector head, software and carrying case.
Easy to use
Powerful
Wide wavelength ranges: 190-950nm; 800-1550nm; 800-1650nm or 400-1650nm.
Bandwidth: 10 kHz

Properties

The SOPM150 is small enough to fit into your pocket and is USB powered and controlled.

Each head is automatically recognized and its individual calibration data are uploaded to the system. In addition, the user may load up to 5 separate filter curves. Thus, the dynamic range and functionality of the unit can be expanded while ensuring proper calibration.

The graphical user interface is intuitive to use and easy to read! The software includes a scope function, data logging and a large, digital display.

Specifications

USB powered and controlled
30 Hz update rate with GUI, 1500 Hz as data logger
5 gain ranges from 1�W to 10 mW full scale (<1nW resolution)

PARAMETER	CONDITIONS	MIN	TYP	MAX	UNITS
INPUT
Wavelength range		190		950	nm
Power ranges (full scale)			10.0 1 100 10 1		mW mW μW μW μW
Noise equivalent power (NEPRMS)	Min = 900 nm Max = 190 nm	5 500 50 5 500		25 2500 250 25 2500	μW nW nW nW pW
OUTPUT
Function		Linear analogue Vout = scale x Pin
Connectors		DB9 and USB
Bandwidth			10		kHz
Sampling rate	GUI-Control		30		S/s
Sampling rate	Direct polling		1000
Accuracy		� 10			%
Reproducibility		� 3			%
Linearity			� 0.2	� 0.4	dB
SUPPLY
Type		USB
DIMENSIONS		60 x 81 x 36 mm (B x L x H)			mm

ORDERING INFORMATION

1) Base module: SOPM150; and 2) Detector heads. Please select suitable diode materials for specific wavelength ranges.

Example: SOPM150YYY

Diode material (YYY)	UVS	190-950nm; 10x10mm
	G5	800-1550nm; φ 5mm
	G10	800-1550nm; φ 10mm
	IGA	800-1650nm; φ 3mm
	VIGA	400-1650nm; φ 3mm

Optical Power Monitor

Precision measurement of optical power from pW to mW.

Properties

The SOPM series of optical power monitors employ photodiodes to measure optical power. Precision dual transimpedance input stages provide for high common mode rejection and linearity throughout the full dynamic range of the system.

Fields of Application

These optical power monitors are used for the measurement and monitoring of optical power from the UV to near IR. The output is a voltage linearly proportional to power. The fast response time at high signal-noise-ratio makes the OPM series particularly useful in systems control feedback loops, such as in fibre alignment systems. The high sensitivity and wide dynamic range allow measurement of fibre coupled lasers and LEDs alike.

Several options of photodiode material and optical input, including free beam input, make these units useful in a wide range of applications including non-telecom metrology. A wide variety of modules are available with TTL-compatible interfaces for full parameter control. The proprietary auto-nulling function allows up to 7V of offset nulling. This is particularly useful for eliminating a DC signal component to concentrate on signal changes, such as during component burn-in and life-time testing.

The amplifiers are classified according to rise time. Within each classification there are options of enclosure style, diode material, receptacles and numbers of channels. Please consult the linked documentation for full details in each case.

Order Code	Risetime	No. of Gains	Output	P max	G max
SOPM100	100 ns	1	0 to +4.5 V	3 mW 30 mW	1500 V/W 150 V/W
SOPM200	35 ns	1	0 to +4.5 V	3 mW 30 mW	1000 V/W 100 V/W
SOPM300	25 μs	3	0 to +4.5 V	1 mW 10 mW	10⁷ V/W 10⁶ V/W
SOPM400	2 μs	4 or 6	0 to +4.5 V	3 mW 30 mW	10⁶ V/W 10⁵ V/W
SOPM500	45 μs	6	0 to +10 V	3 mW 30 mW	10⁸ V/W 10⁷ V/W
SOPM700	n.a.	4	digital	10 μW 100 μW	10⁹ V/W 10⁸ V/W
SOPM800	1 μs	3	4.5 V	4.5 mW	10⁵ V/W

Laser Power/Energy Meters

Display Detector

A power meter consists of a display and a detector. The power meter has been calibrated at a given wavelength before shipping.

Laser Power Meters

Model	146	147	148	M-92A	M-92B	M-92C	M-93
Range	200W 2000W	2uW- 20W	2W-200W 2mW-200mW	0.2W- 20W	2W-50W	2W- 200W	20mW 200mW
Resolution	0.1W	1nW	1064nm:1mW 633nm:1uW	0.1mW	1mW	1mW	0.01mW
Sensor diameter	20mm			18mm	18mm	25mm	10mm
Wavelength	400-1100nm			190nm-25um			400-1100nm
Calibration @ wavelength	1064nm	633nm	1064nm 633nm	10.6um			633nm
Max power density	15kW/cm2			350W/cm2
Max energy density	70J/ cm2
Display	3.5-digit LED
Un-stability	5%
Cooling	water	air				water	air
application	High-power laser	Low-power laser	Medium laser	CO2 laser			Low-power laser

Laser Energy Meters

Model	M2000B	M2000	145A	145B	145C
Range	2J-200J	2J-200J	200mJ-20J	2J-200J	20mJ-2J
Resolution	1mJ	1mJ	0.1mJ	1mJ	0.01mJ
Sensor diameter	11.3mm 50mm	50mm	20mm	20mm	20mm
Wavelength	190nm-25um	190nm-25um	400nm-3um	400nm-3um	400nm-3um
Calibration @ wavelength	10.6um	10.6um	1064nm, 532nm, 694nm
Max power density	10GW/cm2	10GW/cm2	10GW/cm2	10GW/cm2	10GW/cm2
Max energy density	70J/ cm2	70J/ cm2	70J/ cm2	70J/ cm2	70J/ cm2
Display	3.5-digit LED
Un-stability	5%
Cooling	air
Application	CO2laser energy measure	Long pulse width energy measure	Pulse repetition rate 0-30Hz measure

laser beam analyser Beam viewer RF power meter

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