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Dear List,

I am considering placing a Faraday rotator or isolator in front of a 
two-photon laser and am wondering what others have experienced with 
such a configuration.

I am currently experiencing a lot of "feedback", ie return reflected 
laser, that is wrecking havoc with my laser's stability. When it 
senses the reflected light, it can not maintain a mode locked state 
and can only lase in CW.

I'm heard that a Faraday rotator should be sufficient, but I am 
wondering if an isolator is necessary to stop the reflected light 
from entering the cavity of the laser source. Also, I would love to 
get a recommendation for a reliable company that makes them.

Many thanks for any advice,
Ann
-- 

Ann Haberman, PhD
Department of Laboratory Medicine
Yale University School of Medicine
1 Gilbert  St.
TAC S541
New Haven, CT 06510

203-785-7349
203-785-5415 (fax)
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