Natural Science Forum / Physics / Optics / December 2004

Hi Group
Does anyone have a schematic of a good (30Kpps+) CT6800 driver/ampcard, that
they would be willing to share with me ?
-I would like to build my own drivers, but it would be nice to have a

I have some lenses and eyepieces for microscopes and telescopes
but no optical bench or other optical equipment. What is the absolute
cheapest equipment I need to measure their focal lengths and where
would I obtain it that cheaply? Don't assume that I have anything other

I like to hear if any one have a Millennia for sale. I want the J-model made
after maj 1998 (If i Remember correct?), it's the short version (head) with
only one fiber and the small powersupply.
The power i need is >2 watt, but a Mill 5 would be the best.

I am a distributor for a Chinese company that makes high-powered
handheld DPSS lasers, and I'm trying to get together at least a couple
of more people interested in buying a handheld DPSS laser that has an
output between 100mW and 200mW and runs on two "C" batteries.  In the

I'm looking for a shop in Manhanttan that cares with optical
instruments for the textile industry.  I'm looking specifically for a
simple lens under which I can count the thread in the warp and weft
directions.

If anyone is interested i have a Zeiss KF2 Microscope for sale,
bought in 2000 and has very few hours on it, but is very well
maintained and is in excellent mechanical condition. THanks for
looking

Where is best place to start to learn about CO2 lasers.
I'm looking for a CO2 Lasers for Dummies Website.
Something with appropriate references for terms and units of measurement.

http://arxiv.org/abs/quant-ph/0004047
Considering the experiments done with group velocity and phase velocity.
Will it ever be possible that we can break the 180 million m/s Relativistic
limit in fiber?

Can anybody direct me an Erbium Glass manufacturer?

I'm trying to obtain specifications (lead screw accuracy, straight
line accuracy) for the Edmund Industrial Optics stock number NT03-601
Precision 4 Inch Screw-Travel Movement stage
http://www.edmundoptics.com/onlinecatalog/DisplayProduct.cfm?productid=1674

Such as 1064 and 532, does not matter at other wavelength?
Thanks
Hui

Are cheap fresnel prisms available?
I'm interested in making a large, low-quality lens, 2m or so in diameter,
and if prisms to deflect 10-20-30 degrees was abaiable, this could be cut
out and glued to the substrate quite easily.

If I have a spherical mirror Fabry Perot interferometer and do get some
signals, but they are way too small, what reason could that have?
We do see signals, FSR as expected, fairly easy. They are already quite
narrow (Finesse around 20) and we see two modes of our HeNe Laser. Just ...

Can i pump KTP with 780nm to get 390???
Thanx!

I am looking for the *hardback* printing of "International Symposium on
Display Holography" edited by Tung H. Jeong, January 1992, ISBN 0819407313
I was there, but could never afford the book, until now.
Any help appreciated.