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VCSEL vs DFB stability

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Hazem

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Oct 6, 2009, 12:06:46 PM10/6/09
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Please excuse me if this question has been asnwered before. The
search
function does not work for older posts on Google Groups anymore.


I am trying to decide whether to acquire a VCSEL or a DFB laser for a
measurement application. The laser will be coupled to a single-mode
fiber, so many of the advantages of VCSEL over DFB diode lasers
become
irrelevant. The one criterion I care most about is frequency/
wavelength stability. My understanding is that modern DFB or VCSELs
both have very good stability, but I'd like to know which one is the
best. Wavelength will be in the red/ near IR regions, and I have not
chosen it yet. Again, stability is more important and the choice of
wavelength will be secondary, as long as it is in the long visible or
short IR regions.


Your help is much appreciated.


Hazem

Phil Hobbs

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Oct 6, 2009, 1:33:30 PM10/6/09
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Don't multi-post. I already answered this in sci.optics.

Cheers

Phil Hobbs

--
Dr Philip C D Hobbs
Principal
ElectroOptical Innovations
55 Orchard Rd
Briarcliff Manor NY 10510
845-480-2058
hobbs at electrooptical dot net
http://electrooptical.net

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