MGL-III-532 100mW Labby(Amazing stability)

[NightExplorer96]

:beer: make it a good one

Just plan on doing COD and shinning the labbys tonight who will celebrate my birthday

-Alex

 

[Civitus]

Hello !
Did any one of you have any idea about the linewidth?
it is important for our application

C

 

[Radim]

Hello !
Did any one of you have any idea about the linewidth?
it is important for our application

C

In data sheet here: http://www.cnilaser.com/PDF/MGL-III-532.pdf

They say 532+-1 nm, so this should indicate it (however this is very roughly - there will be alignment issues and piece to piece variable optical cavity quality tolerance included).

Check here for more:

https://en.wikipedia.org/wiki/Laser_linewidth
Context: https://en.wikipedia.org/wiki/Optical_cavity


Maybe you need Single Longitudinal Mode (SLM) 532 nm laser - check here for example:

https://www.rp-photonics.com/single_mode_operation.html
https://www.rp-photonics.com/narrow_linewidth_lasers.html

These SLMs are however very expensive, but you can get for reasonable cost of temporal coherence length of about 50 m.

More:

https://en.wikipedia.org/wiki/Coherence_(physics)#Temporal_coherence
https://en.wikipedia.org/wiki/Coherence_length
https://en.wikipedia.org/wiki/Coherence_time


There exist even ring cavity DPSS lasers, where you can reach 300 m of temporal coherence length, these cost exctremely over those SLMs of "standard cavity design".

It depends on what is your purpose and budget.

BTW: It is better to open new thread maybe - since this laser likely will not meet your requirements IMO.