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1x4 Polarization Maintaining Coarse WDM Module

Coarse wavelength Division multiplexer (WDM) ‌ is a low-cost WDM transmission technology ‌ for the access layer of metropolitan area network (MAN). ‌ the optical multiplexer multiplexes optical signals of different wavelengths into a single optical fiber for transmission, ‌ the receiving end decomgenerates the mixed signals in the optical fiber into signals of different wavelengths through the optical demultiplexer, and ‌ is connected to the corresponding receiving equipment.

Annex:

1x4 PM CWDM Module.pdf

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Product Description

1x4 Polarization Maintaining Coarse WDM Module


Features					Applications
Low Insertion Loss					DWDM System
High Return Loss & Channel Isolation					GPON Networks
Good Channel to Channel Uniformity					CATV Links
High Reliability & Stability

Specifications
Parameters				Unit		Values
Channel Number				-		1x4
Center Wavelength				nm		ITU or ITU+1
Channel Space				Ghz		1260~1460 or 1460~1620 or 1260~1620
Channel Space				nm		20
Min. Channel Bandwidth @λc				nm		± 6.5
Max. Channel Flatness				dB		0.4
Max. Insertion Loss		Mux to Demux (Link)		dB		2.2
Min. Isolation		Adjacent channel		dB		30
		Non-adjacent channel		dB		40
		Upgrade Channel		dB		12
Min. Return Loss				dB		50
Min. Extinction Ratio at 23℃				dB		20
Max. Wavelength Thermal Stability				nm/℃		0.003
Max. Insertion Loss Thermal Stability				dB/℃		0.005
Max. Power Handling (CW)				mW		500
Operating Temperature				℃		0~+70
Storage Temperature				℃		-40~+85
With connector, IL is 0.3dB higher, RL is 5dB lower, and ER is 2dB lower.
Connector key is aligned to slow axis.



Ordering Information
PMCWDMM-①②-③③-④④④-⑤-⑥⑥⑥-⑦⑧-⑨-⑩
①	- Module Type:		M=Mux, D=Demux
②	- Operating Wavelength:		F=Full wave(1260nm~1620nm), H=half wave(1260~1460 or 1460~1620)
③③	- Start Wavelength:		27=1270nm or 1271nm, ..., 55=1550 or 1551nm, ..., 61=1610nm or 1611nm
④④④	- Port type:		104=1x4, SSS=Specified
⑤	- Working Axis:		B=Both axis working, F=Fast axis blocked
⑥⑥⑥	- Fiber Type:		001=PM1550, 002=PM1310, SSS=Specified
⑦	- Package Dimensions:		0=100x80x10mm, 1=120x80x18mm, 2=140x140x10mm, S=Specified
⑧	- Fiber Length:		0=bare fiber, 1=900um loose tube, 2=2.0mm loose tube, 3=3.0 loose tube
⑨	- Pigtail Type:		0.8=0.8m, 1.0=1m, S=Specified
⑩	- Connector Type:		0=FC/UPC, 1=FC/APC, 2=SC/UPC, 3=SC/APC, N=None, S=Specified

1x4 Polarization Maintaining Dense WDM Module

(6+1)x1 PM Pump & Signal Combiner

1x4 Polarization Maintaining Dense WDM Module

(6+1)x1 PM Pump & Signal Combiner

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