Innptical’s IN-CWDM-CHxx-1RU CWDM technology uses ITU standard 20nm spacing between the wavelengths, from 1270nm to 1610nm. Our CWDM module has 2 to 18 channels. The central wavelength of each channel is specified to one of the ITU-T grid wavelengths. The CWDM module features wide channel bandwidth (13nm). Its isolation is greater than 30dB for adjacent channels, and greater than 40dB for non-adjacent channels. The module also has high thermal stability to ensure reliable performance under different environment.


Wide operating wavelength range

Low Insertion Loss and low PDL

High stability and reliability

Compact Design

Good channel to channel uniformity

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Channel CountCH4818
Operating Wavelengthnm1260~1620
Centre Wavelengthnm1270~1610 or 1271~1611
Channel Spacingnm20
Channel Passbandnmλc±6.5
Insertion Loss≤1.4≤2.6≤3.7
Channel RippledB≤0.3
Adjacent Channel IsolationdB≥30
Non-Adjacent Channel IsolationdB≥40
Exp Port IsolationdB≥15
Insertion Loss Temperature SensitivitydB/℃<0.005
Wavelength Temperature Shiftingnm/℃<0.003
Return LossdB≥50
Polarization Dependent LossdB≤0.2
Polarization Mode DispersionPs≤0.1
Power HandlingmW≤500
Operating Temperature°C-10~ +70
Storage Temperature°C-40 ~ +85

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