Some customers are asking for the difference of the CWDM and DWDM technology.
CWDM and DWDM both use the Wavelength Division Multiplexing (WDM) technology, but with different features. As shown in the below picture, there is a comparison between CWDM and DWDM technology. A CWDM MUX/DEMUX deals with small amounts of wavelengths, only up to 18 CWDM wavelength, but with large spans between wavelengths (spaced typically at around 20nm, from 1270 nm to 1610 nm).
A DWDM MUX/DEMUX deals with narrower wavelength spans (no more than 0.8nm, 0.4nm or perhaps 0.2nm), and may accommodate 40,80, or even 160 wavelengths(mostly used is Channel 17 to Channel 61 wavelength).
HTFuture can provide you the full range of CWDM DWDM products that you need. If there is any inquiry, just let me know please. Ivy: sales6@htfuture.com
Provide fiber optic products and WDM systematic solution. sales6@htfuture.com (Ivy) Wavelength division multiplexer(WDM/CWDM/DWDM/OADM), Fiber Optic Transceivers(SFP, SFP+, XFP, 10G QSFP+, 40G QSFP+ and 100G CFP2), OEO Converter Repeater, Ethernet Media Converter, Fiber Optical Patch cord and Fiber Optical assembly.
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