Natural Science Forum / Physics / Optics / December 2004

I need to couple the light of a Tungsten or Xenon lamp into a
single-mode photonic crystal fiber.
I am now using a condensor followed by a lens with aperture of 50mm and
focus length of 200mm. But i can get less than 1uW output from the

I am looking for Xenon Lamp up to 100 watt.
Will anyone help me please ?

I'm interested in nonsequential rayrace and generating of two mirror
Cassegrein shape.
My raytrace should include:
1) Generate two aspherical mirrors from a polynomial function I have,

Hey Guys,
I have plans to buy a Surplus Coherent Compas 315M for $1,300 this week
for use in my holography lab.
Does anyone have any experience using this laser for holography?

Optica!
Ben Tsutomu Ito
12-13-04
I will prove that the wave-particle duality theory of light is invalid

Anybody interested or know somebody or know of a company interested in
doing a laser/music show from a large pontoon boat ?  
Thank you
Grivy

I'm using two cylindical lenses, one horizonatal f=250mm e the other
vertical f=50mm.
Is there any way to use only a single lens with different focal lenghth in
vertical and horizontal plane?

I have had trouble replying to posts. I thought I would try this to see
if it worked.

The world around me is full of radioactivity, but I can't see it.So
how can I build glasses to see the gamma rays?

Got a question (well, really 2 questions) for the laserists here.  I'm
a hobyist, and I'm considering building a low power RGB projection
system to experiment with in my home.  (Hene + DPSS + 488nm Argon).
I've got a couple sets of galvos that should be OK up to around 12kpps

please help to obtain information relating to last
know measurements of the coherence radius.
And also last known measurements that prove the
formula such as Rcoherence=lambda/teta.

i bought a 2v 2.2a 2200mw boston laser diode on ebay. i want to find a
cheap power supply for it. i have found several laptop power supplies
in the 12v 2.2a range. will these kill my laser diode? what do i need
to do to get them to work ? thanks. james.

Hi Group
I posted here some time ago about a seller who, to say the least, was
dragging his feet in a rather large deal, i was doing with him...
A couple of other posters here advised me to give him a last chance to come

Radio frequency lasing - is such a phenomenon possible?
There are masers (microwave lasers) already.
Is it necessary for the lasing 'cavity' to be some
multiple of the lasing frequency? If so, would devices

Does anyone have info on the really old controllers for the 58-GSD-309
(and other similar) high power DPSS lasers.  These were probably from
company Laser Power Corporation, apparently the original designer of
these lasers.  Here are photos: