1311nm Center Wavelength CWDM Filter with Excellent Channel Isolation and Wide

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Payment Terms	T/T
Supply Ability	10K
Delivery Time	14 work days
Packaging Details	Specified Plastic Box
Filter Specs Number/Version Number	BPFCWDM/V19(For 4 point control)
Operating Wavelength Range(nm)	1260.0-1651.0
Center Wavelength λc(nm)	1311
Passband(nm)	＞λc±7.4
Reflect Band(nm)	1260~λc-12.7&λc+12.7~1651
Peak Insertion Loss(dB)	＜0.15
Passband Ripple(dB)	≤0.15
Reflect Isolation within Passband (dB)	＞15
Transmission Isolation within Reflect Band(dB)	＞45
Polarization Dependent Loss within Passband(dB)	＜0.1
Operating Temperature(℃)	-40～80
Wavelength Thermal Shifting A7△T(pm/C)	＜2
Dimension(mm)	1.3~1.43×1.3~1.43×1.0~1.4 with 0.3(±0.1)°wedge
Backside AR Coating	＜0.2% Reflection
Brand Name	Honghui Guanglian
Certification	ISO9001:2015/ISO14001:2015/ ISO45001:2018/ISO27001:2013
Place of Origin	Shanghai

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Product Specification


Payment Terms	T/T	Supply Ability	10K
Delivery Time	14 work days	Packaging Details	Specified Plastic Box
Filter Specs Number/Version Number	BPFCWDM/V19(For 4 point control)	Operating Wavelength Range(nm)	1260.0-1651.0
Center Wavelength λc(nm)	1311	Passband(nm)	＞λc±7.4
Reflect Band(nm)	1260~λc-12.7&λc+12.7~1651	Peak Insertion Loss(dB)	＜0.15
Passband Ripple(dB)	≤0.15	Reflect Isolation within Passband (dB)	＞15
Transmission Isolation within Reflect Band(dB)	＞45	Polarization Dependent Loss within Passband(dB)	＜0.1
Operating Temperature(℃)	-40～80	Wavelength Thermal Shifting A7△T(pm/C)	＜2
Dimension(mm)	1.3~1.43×1.3~1.43×1.0~1.4 with 0.3(±0.1)°wedge	Backside AR Coating	＜0.2% Reflection
Brand Name	Honghui Guanglian	Certification	ISO9001:2015/ISO14001:2015/ ISO45001:2018/ISO27001:2013
Place of Origin	Shanghai
High Light	1311nm Center Wavelength CWDM Filter ，Excellent Channel Isolation CWDM Filter ，Wide Operating Temperature Range CWDM Filter

CWDM1291nm

Product Overview

CWDM stands for Coarse Wavelength Division Multiplexing, a cost-effective optical communication technology used to transmit multiple data streams simultaneously over a single optical fiber. Unlike DWDM (Dense Wavelength Division Multiplexing) which uses narrow channel spacing (e.g., 100GHz or 50GHz), CWDM typically employs wider channel spacing—most commonly 20nm—across the optical spectrum.

It works by assigning distinct, non-overlapping wavelengths to different data signals, combining (multiplexing) them at the transmission end for joint fiber transmission, and then separating (demultiplexing) them back to individual signals at the receiving end. CWDM filters, a core component of this technology, selectively pass or block specific wavelengths to enable this signal management.

Key Features

High-Precision Wavelength Selection: Ensures the accuracy and efficiency of signal transmission to meet different optical communication requirements.
Low Insertion Loss: Reduces the energy loss of the signal during transmission and ensures the intensity and quality of the signal.
Excellent Channel Isolation: Effectively avoids signal interference between different channels and improves the stability of communication.

Applications

Metro Area Networks (MANs)
Data Center Interconnections (DCI)
Enterprise Backbone Networks
Fiber-to-the-X (FTTx) Systems
Industrial Ethernet Networks
Enterprise Campus Networks
Small to Medium-Sized Service Provider Networks
Surveillance and Security Systems

Company Details

Bronze Gleitlager

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and

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from Quality China Factory

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Business Type:

Manufacturer 


Year Established:

2000 


Total Annual:

900,000,000-1,000,000,000


Employee Number:

1000~2000 


Ecer Certification：

Verified Supplier 

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Shanghai Honghui Guanglian Communication Technology Co.,Ltd.
Add: No. 398 Fengdeng Road, Jiading Dist, Shanghai 201822, China
https://www.hh-fiberoptic.com/

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