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Erbium Broadband Sources
ST-EBS-Series
A complete line of flattened Broadband and Comb Sources designed
for optical-component measurement, EDFA-subsystem evaluation and optical link
characterization
Features
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Provides broadband light several thousand times brighter than a
typical EELED
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Unique and extra-ordinary source for different applications
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Output light is unpolarized
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Wide spectral range with excellent flatness
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Excellent stability of 5 mdB/hour
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Packaged in instrument or modular format
Applications
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Wide dynamic-range optical component testing
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Accurate EDFA gain spectrum measurement
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Telecom systems compliance tests
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Optical link characterization
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Optical-code division multiple access and local networking by
spectral slicing
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Biomedical imaging
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Sensors & gyroscopes
Micro Broadband Source
ST-EBS-xs
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Small modular broadband sources with extremely low output ripple
and high stability.
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Available in both C and L band for applications where a stable
light source is needed as in optical sensing and spectroscopy.
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Compact (MSA size)
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Output power up to 20 dBm
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Stability < � 50 mdB/hr
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Available in C and L Band
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Craft Terminal Interface
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Customization available
Applications
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Wide-dynamic-range characterization of components such as AWGs
and FBGs
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Alternative to multiple DFB lasers and multiplexer in
telecommunications test sets
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Accurate gain-spectrum measurement of EDFAs with spectral-hole
burning included
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Local networking using spectral slicing or optical code-division
multiplexing
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PMD measurements of long-span fiber links
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Gyroscopes
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White-light interferometry
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Optical Sensing
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Spectroscopy
Specifications
|
Total Output Power |
20 dBm non flattened, up to 19 dBm flattened |
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Spectral Width |
~ 35 nm |
|
Ripple for Flattened |
� 1.5 dB over 35 nm |
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Stability (after 30-min warm up) |
� 50 mdB/hr ( �20 mdB/hr typical) |
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State of Polarization |
Unpolarized |
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Optical Isolation (output) |
30 dB over bandwidth |
|
Output Connector |
FC/APC |
DWDM Comb Source
The CombSource is designed to simulate a DWDM signal launched
into a fiber link and is an ideal replacement for a costly bank of DFB lasers.
It is well-suited for measurements of DWDM amplifier gain and noise figure
spectra as well as the evolution of the OSNR and channel power spectra in
long-haul, multiply-amplified DWDM systems.
Features
Replacement for bank of 90 DFB lasers
Output power up to 22 dBm
Excellent extinction ratio (>47 dB)
Channels locked to ITU-T grid of 50 GHz or 100 GHz
Units available in both C and L band
Applications
Simultaneously measure optical amplifier gain flatness and noise
figure under conditions of full channel loading (high peak-to-valley extinction
ratio extends NF measurement capability to high-power booster amplifiers).
Measure full C-band OSNR and channel power evolution over links
consisting of multiple spans and optical amplifiers without the need for costly
banks of DFB lasers.
Measure magnitude of inter-channel Raman pumping along a span for
fully-loaded C-band case.
Test DWDM demux components.
Specifications
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|
9022 |
4522 |
9622 |
4822 |
|
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Composite Output Power* |
> 21.5 (22 typ) |
dBm |
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Power Stability** |
better than 20 |
milli-dB/hr |
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Min. Spectral Range |
1529 - 1565 |
1529-1567 |
nm |
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Min. Number of Channels |
90 |
45 |
96 |
48 |
|
|
Spacing Between Channels |
50 |
100 |
50 |
100 |
GHz |
|
Ripple |
< 2.0 |
dB |
|
Min. Extinction Ratio*** |
45 |
50 |
44 |
49 |
dB |
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Max. channel Linewidth ( FWHM ) |
44 |
34 |
46 |
36 |
pm |
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Deviation from ITU Grid |
≤ 20 |
pm |
Other power versions are available upon request
After 60 min. warm-up
Measured with a spectral resolution of 20 pm
Erbium Broadband Sources - Dual Band
ST-EBS-7514
The strong, uniform and extremely stable light of the dual band
source makes it a very powerful source for component testing. It provides a
uniform dynamic range for the characterization of high-loss passive optical
components in both the C & L bands.
Features
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Output power up to 14 dBm
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Covers both C & L Band
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Flatness better than 3 dB over 76 nm
Applications
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Spectral measurements of C & L band DWDM components
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Compliance tests of C-, L- or dual-band systems
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Accurate gain and gain-flatness measurement of dual-band
EDFAsLocal networking by spectral slicing
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High sensitivity PMD measurements
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Fiber sensors and gyroscopes
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White-light interferometry
Specifications
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|
ST-EBS-7514 |
|
Spectral Width |
|
|
@ 3 dB |
> 76 nm |
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@ 20 dB |
100 nm |
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Typical Ripple |
< 2.5 dB over > 75 nm |
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Stability |
5 mdB/hr typ. |
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Output Power |
> 14 dBm |
Flat High-Power Broadband Sources
ST-EBS-4022, ST-EBS-4022L, ST-EYBS-3527
ST-EBS-4022
The ST-EBS-4022 Erbium Broadband Source is an extremely stable,
flattened broadband source delivering 22 dBm in a 40-nm wide spectrum spanning
the whole Erbium C band. It utilizes amplified spontaneous emission (ASE) from
diode-pumped Erbium-doped fiber and a spectral shaping scheme which flattens the
output to better than 1 dB from 1527 to 1567 nm.
Featuring the same power-spectral density as a full set of
100-GHz spaced DFB lasers, the ST-EBS-4022 can dramatically reduce equipment
costs in a variety of telecommunications test sets. As a powerful, flat source,
it also naturally lends itself to local networking using spectral slicing or
optical code-division multiplexing.
The very high power of the ST-EBS-4022 provides an unsurpassed,
uniform dynamic range for the characterization of passive optical components
such as array waveguides. Testing is quick and precise, and with the remarkable
spectral stability of the ST-EBS-4022, frequent spectrum recording is
unnecessary.
Applications
l
Wide-dynamic-range characterization of components such as AWGs
and FBGs
l
Alternative to multiple DFB lasers and multiplexer in
telecommunications test sets
l
Accurate gain-spectrum measurement of EDFAs with spectral-hole
burning included
l
Local networking using spectral slicing or optical code-division
multiplexing
l
PMD measurements of long-span fiber links
l
Fiber sensing
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Gyroscopes
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White-light interferometry
ST-EBS-4022L
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An extremely stable, flattened broadband source delivering 21 dBm
in a 40-nm wide spectrum spanning the whole L-Band.
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ASE spectra-shaping scheme flattens the output from 1567 to 1607
nm
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Very high power provides an unsurpassed, uniform dynamic range
for the characterization of passive optical components such as array wavelengths
Applications
l
Wide-dynamic-range characterization of components such as AWGs
and FBGs in the L band
l
Alternative to multiple DFB lasers and multiplexer in
telecommunications test sets
l
Accurate gain-spectrum measurement of EDFAs with spectral-hole
burning included
l
Local networking using spectral slicing or optical code-division
multiplexing
l
PMD measurements of long-span fiber links
l
Fiber sensing
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Gyroscopes
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White-light interferometry
ST-EYBS-3527
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A high-power, spectrally-flattened broadband source delivering 27
dBm in a 35nm wide spectrum spanning the C-band.
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Allows loss measurements to be made over the C-band with a
uniform, large dynamic range with equal precision
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Equipped with output isolation to provide protection against
back-reflections from the device under test
Applications
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Spectral measurements of C-band DWDM components
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Accurate EDFA gain spectrum measurements
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Telecom systems compliance tests
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PMD measurements of long-span fiber links
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Fiber senors and gyroscopes
Specifications
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ST-EBS-4022 |
ST-EBS-4022L |
ST-EYBS-3527 |
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Total Output Power (typical) |
22 |
≥ 21 |
27 |
dBm |
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Spectral Width |
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|
|
|
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@ 3 dB |
≥ 40 |
≥ 40 |
35 |
nm |
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@ 20 dB |
58 |
58 |
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nm |
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Ripple (typical) |
1 dB over ≥38nm |
≤1.5 peak to peak |
1dB over ≥32 nm |
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Optical fiber analyzer
Visible fiber laser |
