WDM Module
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TFF CWDM/LAN WDM Block
Vlink’s Thin Film Filter CWDM and LAN WDM block is with small size, high effective aperture, low pointing angle, suited for QSFP28 transceiver modules.
Function DescriptionSpecificationsApplications

Features

Ø Compact size

Ø High effective aperture

Ø High Bandwidth

Ø High Reliability

Specification

Parameters

Unit

TFF CWDM4

TFF LAN WDM4

Operating Wavelength

nm

1271129113111331

1295.56, 1300.05,

1304.58, 1309.14

Fiber Channels

-

4

4

Passband

nm

+/-7

+/-1.0

Insertion Loss

dB

<1.0

<1.0

Adj. Isolation

dB

>30

>25

Non Adj. Isolation

dB

>40

>30

PDL @ Passband

dB

<0.25

<0.25

A.O.I.

-

13.5 deg/8 deg

8 deg

Operating Temperature

-5 to 70

-5 to 70

Storage Temperature

-40 to 85

-40 to 85

Applications

Ø 40G Transceiver Module

Ø 100G Transceiver Module

Ø CFP/QSFP+/CFP4/QSFP28

Ø Testing instruments

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