Coarse Wavelength Division Multiplexer, CWDM

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Due to the adoption of high precision optical filter, the coarse wavelength division multiplexer is provided with accurate center wavelength, and high channel isolation. For the purpose of ensuring precision performance, the device is equipped with a collimator which offers stable performance under varied environmental and optical power conditions.

Coarse Wavelength Division Multiplexer, CWDM

Functions and Applications
CWDM is designed to multiplex multiple optical signals on laser beams at varied wavelengths onto a single strand of optical fiber. At the receiving end, an optical demultiplexer can be utilized to separate the combined signals which are then transmitted to corresponding receiving equipment.

Coarse wavelength division multiplexers are ideal for multiplexed transmission and wavelength conversion of various analog signals, as well as digital signals like SDH, ATM, Ethernet, and Fiber Channel.

Technical Specifications (connector excluded)

Item		Specifications
(nm)/ Operating wavelength		1270 - 1610
(nm)/ Central wavelength error		±0.5
(nm)/ Channel width		20
(nm)/-0.5dB Channel bandwidth		>13
(dB)/ Forward channel insertion loss		≤ 0.6
(dB)/ Backward channel insertion loss		≤ 0.4
(dB)/ Gain flatness between channels		<0.3
(dB)/ Degree of isolation	Adjacent	>30
	Non-adjacent	>40
(dB/ ℃ )/ Temperature dependent loss		<0.005
(nm/ ℃ )/ Temperature-dependent wavelength shift		<0.002
(dB)/ Polarization dependent loss		<0.1
(ps )/ Polarization mode dispersion		<0.1
(dB)/ Directivity		>50
(dB)/ Return loss		>45
(mW )/ Max. input power		300
( ℃ )/ Operating temperature		-5 to 75
( ℃ )/ Storage temperature		-40 to 85
(mm)/ Encapsulation dimension		φ5.5x35

Encapsulation Dimension

Model Description

XX	X	X	X	XX
Channel width	Working channel wavelength	Optical fiber type	Optical fiber length	Connector
C=CWDM Grid	27=1270nm	1=Bare Fiber	1=1m	0=None
	...	2=900um fiber with loose tube	2=2m	1=FC/APC
	47=1470nm			2=FC/PC
	49=1490nm			3=SC/APC
	...			4=SC/PC
	61=1610nm			5=ST
				6=LC

Related Names
CWDM Module Supplier | CWDM Transceiver | Fiber Optic Switch

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