Green Diode Lasers
On: Thu, Aug 02, 01 11:04:48 PM
Brian wrote:
| <![CDATA[Has anyone here tried using Green laser diodes for
Holography? I've got the opportunity to buy a 10mw
green laser module complete with driver and heatsink
for only $275. Seems like a great deal, but I wasn't
sure if the green diodes were any good for holography -
in terms of coherency and the like.
-Brian]]> |
RESPONSES
Colin Kaminski - Fri, Aug 03, 01 12:38:57 PM
<![CDATA[Sounds cheap! Any others available? Check the coherence
length. If it is less than 6 inches or so pass. I talked
with one manufacturer of green lasers whose coherence
length was 100 meters!]]> 64.167.150.87
Brian - Fri, Aug 03, 01 12:52:36 PM
Yeah, I asked the guy and he said it had too short of a
coherence length for holography, but he said that the
laser was new, so for other uses it's a great deal. I
actually saw it on Ebay, so if anyone else is interested
here is the link:
http://cgi.ebay.com/aw-cgi/eBayISAPI.dll?ViewItem&ite
m=1261312467
-Brian
64.132.32.110
Ray - Fri, Aug 03, 01 11:32:44 PM
<![CDATA[didnt they say red diodes had to short of a coherence
length for holography, also?
]]> 209.179.146.198
Colin - Sat, Aug 04, 01 10:47:01 AM
<![CDATA[When I first looked into diodes for holography 8 or 10
years age that is what I was told. It was not until Frank
and his friends started actually measuring them did I find
out everyone was wrong.]]> 64.167.148.92
Colin - Sat, Aug 04, 01 10:49:14 AM
<![CDATA[That would be 8 or 10 years ago! woops!]]> 64.167.148.92
john@myszkowski.net - Tue, Nov 13, 01 01:55:27 AM
<![CDATA[is ther any more of these units at that price?
the cheapest I found on e-bay was $995
]]> 24.141.80.235
Cyril - Mon, Feb 18, 02 04:39:07 PM
<![CDATA[Brian,
Do you mind my asking where you got this green laser at
10mw so cheap !? I would be very interested myself
cheers
cs]]> 62.40.48.191
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