Dual Polarization 90º Optical Hybrid
Product Description：
To enable the operations with arbitrary polarization in a coherent receiver application, the 2x8 port integrated PBS with dual polarization 90° Optical Hybrid (DP90DOPTHYB ) is needed. It has two sets of PBS and 90° optical hybrid to mix the incoming signal with a local oscillator to generate eight light states in the complex-field space. The eight light output signals can then be coupled into four pairs of balanced detectors.
 
Since the mixing process is data rate independent, the devices can be used for any data rate in applications such as 40Gb/s or 100Gb/s transmission systems.

Parameter
Unit
Value
Min
Max
Wavelength C band
nm
1525
1567
Phase Difference
between I+(TE) and I-(TE)
between Q+(TE) and Q-(TE)
between I+(TM) and I-(TM)
between Q+(TM) and Q-(TM)
deg
83
97
Insertion Loss without connectors
Input-Output
dB
 
11.0
Insertion Loss Uniformity
Between S to I+(TE) and I-(TE)
between S to Q+(TE) and Q-(TE)
between S to I+(TM) and I-(TM)
between S to Q+(TM) and Q-(TM)
between L to I+(TE) and I-(TE)
between L to Q+(TE) and Q-(TE)
between L to I+(TM) and I-(TM)
between L to Q+(TM) and Q-(TM)
dB
 
1.0
Optical Path Difference
between I+(TE) and I-(TE)
between Q+(TE) and Q-(TE)
between I+(TM) and I-(TM)
between Q+(TM) and Q-(TM)
ps
 
1
Polarization extinction ratio
 (for either S or L)
dB
18
 
Max. Input Optical Power
W
300
 
Operating Temperature
°C
0
70
Storage Temperature
°C
-40
85
Fiber Type
 
400um PM fiber on Local Ref Input port; SMF-28 /250um in 900um loose tube on all other ports
Max Dimension (LxWxH)
mm
30x48x8
Connect Type
 
LC

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