Fixed Differential Group Delay- PolaDelay™
General Photonics’ fixed differential group delay lines eliminate the need for precise measurement of PM fiber lengths to add defined amounts of first order PMD to a system. DGD values of up to 45 ps are available in the standard size package. Larger DGD values are also available by special request.
Features:
. Large 1st order PMD up to 45 ps
. Compact size
. Low insertion loss
Applications:
. PMD emulation
. PMD compensation
. TDM bit alignment
Specifications:
Operating Wavelength
1550 ± 50 nm
Insertion Loss
0.8 dB typical, 1.0 dB max
DGD Value1
0 ps to 45 ps standard
DGD Calibration Accuracy
± (1 fs + DGD x 0.5%)
2nd Order PMD2
< 30 ps2
PDL
< 0.2 dB
Return Loss
55 dB
Operating Temperature
0 to 70 °C
Storage Temperature
-40 to 85 °C
Optical Power Handling
300 mW min.
Fiber Type
SMF - 28
Dimensions3
4.25” (L) × 0.31” (W) × 0.31” (H)
Note: Values are referenced without connectors
1. DGD values cannot be continuously specified. Contact General Photonics for available values.
2. 2nd order PMD depends on DGD value.
3. Dimensions listed are for the standard package for DGD ≤ 45 ps. Package size may vary with DGD value.
Ordering Information:
Dimensions (in inches):
商品属性 [波长] 1550 ± 50 nm [光纤类型] SMF - 28