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EXFO's BRT-320A is a field-ready return loss test set. It comes
equipped with rapidly stabilizing TEC lasers and low-drift photodetectors to
ensure constant optical return loss (ORL) measurements year after year.
Built-In User-Friendliness Use the BRT-320A to read
backreflection from 0 dB to -70 dB and easily store up to 300 readings in a
non-volatile memory. ORL readings appear directly on the large, backlit LCD. An
ORL zero function accounts for incidental backreflections before the point of
measurement and complies with Bellcore optical continuous wave reflectometer
(OCWR) requirements. In User Calibration mode, you can calibrate the unit to a
known reflection.
Other features include three-way powering (rechargeable NiCd battery pack, 9
V battery, AC adapter/charger), 0.01 dB resolution, ±0.1 dB linearity, internal
InGaAs detector, low-battery indicator and a protective holster with shoulder
strap.
Reveal Return Loss Problems Many digital and analog fiber
systems require ORL characterization. ORL along a fiber span is a combination of
Rayleigh scattering and Fresnel reflections. Together, these phenomena can
reduce fiber system performance and increase bit error rate (BER) by degrading
transmitter stability. The BRT-320A measures cumulative link return loss and
individual component reflectance to reveal potential ORL problems before they
seriously affect your applications.
Versatile The BRT-320A is ideal for local and long-distance
Telco, CATV, utility, broadband and transmission equipment manufacturing
applications. These environments often require complete network ORL
characterization and component reflectance verification. The BRT-320A also
functions as a stable, continuous-wavelength light source for attenuation
measurements. Other applications include fiber component and cable
manufacturing.
Applications Optical return loss (ORL) measurement
Key Features and Benefits
* Fast-stabilizing,
thermoelectrically cooled laser and a low-drift photodetector to ensure
consistent measurements year after year
* Measurement range of 0 to
-70 dB
* Quick and easy to operate
* Rugged, field-ready and
stores up to 300 readings
Specifications
|
Wavelength (nm) |
1550 ± 15 |
|
Spectral width (rms) b (nm)
|
< 5 |
|
Output power stability (dB) |
|
|
15 minutes c |
± 0.01 |
|
1 hour d |
± 0.05 |
|
Temperature stability e (dB)
|
± 0.2 |
|
Reflection range (dB) |
0 to -70 |
|
Display resolution f (dB)
|
0.01 |
|
Linearity g (dB)
|
± 0.1 |
|
Uncertainty (accuracy) g (dB)
|
± 0.5 |
|
Minimum output power (dBm) |
?6.5 |
|
Polarization sensitivity h (dB)
|
± 0.15 |
Includes
- Exfo BRT-320A-03BLC-58 Fiber Optic
Back-Reflection Meter 1550nm
- Fiber Cables:
- - (2) SM FC-FC
-
Fiber Connectors:
- - FC-FC
- Carrying Strap
- (4) CleanTex AlcoPads
- AC Adapter/Charger
- Hard Copy User Manual
- User Manual On CD-ROM
- Hard Carrying Case
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