LUNA PCD-005 Polarization Scrambler
The LUNA PCD-005 Polarization Scrambler Module rapidly randomizes the instantaneous polarization state of output light to achieve a time-averaged depolarization effect. It includes circuitry to cover several wavelength bands, improve temperature performance and add remote control capability.
- Fast, uniform sphere coverage (DOP<5% when averaged over 2 ms)
- Easy to use
- Low IL, RL, PDL, and PMD
- Multiple wavelength bands
- Remote control
The LUNA PCD-003/005 polarization scramblers combine a fiber squeezer polarization controller with specialized driver electronics to achieve uniform Poincaré sphere coverage in a few ms. Because they use the resonance frequencies of the polarization controller, the scrambling rate is fixed. Because of the all-fibre construction, they have low insertion loss and low back reflection as well as minimal phase and amplitude modulation.
The PCD-005 allows the user to enable/disable the scrambler and change the wavelength band setting from the front panel or via remote control. It is the module counterpart to the PCD-104 instrument.
Polarization scramblers are useful for any application that requires a quasi-depolarized signal, especially for long coherence length sources for which a passive depolarizer is not suitable.
| Centre wavelengths | λ range 1: 1310, 1480, 1550, 1600nm λ range 2: 980, 1060, 1310nm |
|---|---|
| Wavelength range | λc ±50nm |
| Output DOP | <5% (averaging time ≥2ms) |
| IL | <0.6 dB with connectors <0.05 dB intrinsic |
| Average PMD | <0.05 ps |
| Intrinsic PDL | <0.05 dB, excluding connectors |
| RL | >65 dB, excluding connectors |
| Residual amplitude modulation | <±0.01 dB |
| Residual phase modulation | <0.1π |
LUNA PCD-005 datasheet 
