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Instruments
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Product Summary
General Photonics’ Polarization Scrambler uses a breakthrough all-fiber technology to
effectively randomize polarization states. Depolarizing by polarization scrambling has
many important applications. Scrambling the input polarization can remove measurement
uncertainties caused by polarization sensitivity in the testing device. Performance
degradation due to polarization-dependent-gain (PDG) induced in optical amplifiers
can also be suppressed by polarization scrambling. Polarization
scrambling can also be used in systems to facilitate and simplify PMD monitoring.
Based on a patented, award-winning all-fiber technology,
the PCD-104 delivers
superior performance, including extremely low insertion loss, back reflection,
and residual phase and amplitude modulation.
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Features
- No insertion loss & No back reflection
- Low residual phase and amplitude modulation
- Built-in GPIB, RS-232, and Ethernet ports
- Remote operation wavelength control
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Applications
- PDG mitigation
- Polarization sensitivity elimination
- Facilitating PMD emulation
- Facilitating PMD compensation
- Facilitating PDL measurement
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Specifications
| Insertion Loss |
≤0.05 dB without connectors
≤0.6 dB with
connectors |
| Center Operating Wavelength1 |
Remote or manual selection of 980 nm,
1060 nm, 1310 nm, 1480 nm, 1550 nm, 1600 nm |
| Operating Wavelength Range 2 |
> 100 nm |
Output Degree of Polarization
(DOP) 3, 4 |
< 5% |
| Average PMD |
< 0.05 ps |
| Intrinsic PDL |
< 0.05 dB |
| Return Loss |
> 65 dB (without connectors) |
| Optical Power Handling |
> 1000 mW |
| Residual Amplitude Modulation |
< ± 0.01 dB |
| Residual Phase Modulation |
< 0.1 π |
| Power Supply5 |
100 ~ 120VAC, 50-60 Hz or
200 ~ 240VAC, 50-60 Hz |
| Power Consumption |
12 W typical |
| Scrambling Frequencies4 |
Factory set 4 fixed
frequencies, distributed between DC and > 700 kHz |
| Operating Temperature 6 |
10 ~ 45
°C |
| Storage Temperature |
-10 ~ 50 °C |
| PC Interface |
GPIB,
Ethernet,
RS-232 |
| Dimensions |
2U, 19" half rack width, 3.5" ×
8.5" × 14." (H
× W × L) |
Notes:
1. Please note that the fiber used determines the operating
wavelength range. The standard fiber covers wavelengths in the
1260-1650nm range. The PCD-104 can also be configured to cover the
970-1300nm range using a different fiber. This fiber can handle
wavelengths up to 1650nm, but if it is coupled to SMF-28 fiber, the
performance may not be quite as good as normal due to mode mismatch.
Please contact General Photonics for details.2. Center Wavelength
± 50nm.
3. At 500 Hz detection bandwidth.
4. Measured from a photodetector at PCD-104 output using a spectrum
analyzer. A polarizer is placed in front of the photodetector to
convert polarization modulation to amplitude modulation.
5. Universal power supply.
6. Temperature range of 10 ~ 65°C is available upon request.
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