18CH CWDM Mux Demux

Advantages of Demultiplexer

The CWDM multiplexer/demultiplexer launched by Guangzhou Sintai Communications Co., Ltd. is designed for economical and efficient multi-wavelength CWDM network applications. It is based on thin-film filter (TFF) mux technology and operates on ITU grids with 20nm channel spacing.

The CWDM wavelength ranges from 1270 to 1610 nm and supports at most 18 channels of optical signal multiplexing/demultiplexing. It has a series of advantages, such as multi-kind of packaging structures, low insertion loss, high channel isolation, and so on.

18CH CWDM Mux Demux Feature
Low insertion loss (IL)

High channel isolation

High stability and reliability

Provide 1 to 18 channels with a compact design

Conform to ITU-T G.694.2

Conform to Telcordia GR-1209-CORE-2001 standard

Conform to Telcordia GR-1221-CORE-1999 standard

Conform to RoHS-6 (no lead)

Application Area

CWDM system

CATV system


18CH CWDM Mux Demux Applications
Maximizes fiber in local loop applications

Overlays CWDM with existing1310 nm transmission systems

Provides bidirectional transmission on a single fiber

Supports linear (bus) add/drop architectures

Supports hub-and-spoke ring architectures


18CH CWDM Mux Demux Compliance
ITU-T G.694.2 and G.695

GR-1221 Issue 3 and 1209

RoHS compliant 6/6


18CH CWDM Mux Demux Specification
Item CWDM MUX/DEMUX
Channel number 1 2 4 8 16 18
Operating wavelength (nm) 1260~1620
Center wavelength (nm) ITU-T Grid
Channel spacing (nm) 20
Channel insertion loss (dB) ≤0.8 ≤1.2 ≤1.8 ≤2.6 ≤4.5 ≤5.0
Channel bandwidth (dB) ITU¯6.5
Flatness (dB) ≤0.5
Adjacent channel isolation (dB) ≥30
Non-adjacent channel isolation (dB) ≥40
Return loss (dB) ≥50
Directivity (dB) ≥55
Polarization-dependent loss (dB) ≤0.2
Polarization mode dispersion (ps) ≤0.2
Power Handling (dB) ≤500
Operating Temperature (®C) 0~+70
Storage Temperature (®C) -40 ~+85
Package type Steel tube, ABS box, LGX standard box, 1U standard 19-inch rack

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