Arrayed-Waveguide Grating Multi/Demultiplxer

Arrayed-Waveguide Grating Multi/Demultiplxer modules of an optical chip having focusing slab waveguides and a phase array of multiple-channel waveguides with constant path length differences between neighboring channels. The AWG modules function as 1¡än optical multi/de-multiplexers for Dense Wavelength Division Multiplexing (DWDM) systems.
Features
 Applications

Low insertion loss
Wide pass band
High channel isolation
High stability and reliabilit

Dense-WDM systems
Optical wavelength routers.
Optical signal processing.

Spec and Parameter
Parameter Unit Value REM
Channel Spacing
GHz
100
  
Wavelength Accurac
 nm typ. ¡À 0.02, max ¡À 0.04  
ITU Band
 GHz ¡À 12.5 Centered at each ITU frequenc
Insertion Loss
 dB typ.3.0, <=4.0 Maximun in ITU band
Uniformit
 dB typ.1.0, < 1.5 Loss variation across all channels
Ripple
 dB typ.1.0, <= 1.75 Loss variation with ITU band
1 dB Passband
 nm typ.0.25 , >=0.2 Passband width 1 dB below peak
3 dB Passband
 nm typ.0.42 , >=0.4 Passband width 3 dB below peak
PDL dB typ.0.2, <= 0.5 Maximum in ITU band
Adjacent Channel Crosstalk (AX)
 dB typ.-30, <= -26 Worst case in ITU band
Non-Adjacent Crosstalk (NX)
 dB typ.-40, <= -35 Worst case in ITU band
Total Crosstalk
 dB typ.-25, <= -23 Cumulative sum of all AX and NX
Return Loss
 dB > 45
  
Directivit
 dB > 50
  
Power Consumption
 W 4  

 
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