Typical CWDM laser.

[Eoin Kavanagh]

Hi all,

I’m currently doing a college project on modelling a typical low end 2.5 G CWDM laser with a output power of 0 dBm and line width of 1 nm.
The laser is drifting towards the adjacent channel but do the CW lasers provide an accurate representation of a typical CWDM laser? Thanks.

[Damian Marek]

There are a number of different laser models available. I think in general yes it does provide an accurate representation, however if there is some type of property you are worried about it would be best to look at the technical background of the laser models and see which one is suitable. Most of them, provide a simple method for modelling the finite line width of physical lasers.

[Rajguru M. Mohan]

Hi Eoin,
I like to discuss some of features and applications of a 1270 nm- 1610nm Series 18 Channels CWDM Laser Diode Modules:
FEATURES

Un-cooled 1270 nm – 1610nm DFB laser diode (LD) with MQW structure

High temperature operation without active cooling

Hermetically sealed active component

Single frequency operation with high side mode suppression ratio

Build-in high performance/speed InGaAs monitor PIN photodiode (PD)

For 9/125 mm SM fiber

PACKAGING

Fiber pigtailed with optional FC/ST/SC connector

Packaged in FC or ST Receptacle with fiber stub.

APPLICATIONS

Design for CWDM fiber optic networks

SONET OC-12/OC-48 / SDH /STM-4/STM-16

Gigabit Ethernet

Stable emitting source at specific wavelength

Thanks,

[Author]

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