Our customers are saying about Tydex optics:

17 January 2012

Hello Valery,

Thank you very much for the data you sent me.
Really good THz BP filters! We have already 2 or 3 your filters.
They work very well.

Best Regards,
Victor Pogrebnyak, PhD
Adjunct Associate Professor
State University of New York
Buffalo, NY
USA

October 19, 2011

Dear Ekaterina,

We have been using the quartz windows and are very happy with them,
so I have just placed an order for 6 more.

Best regards,
Dr Richard Dudley
Principal Research Scientist
National Physical Laboratory
UK

May 6, 2011

Dear Ekaterina,

Thank you for your detailed reply!
It is evident that you at Tydex combine very well the business with the science. <…>

With best regards to you and your colleagues at TYDEX,
H. D. Hristov
Assoc. Research Professor
UTFSM (Federico Santa María Technical University)
Valparaíso
Chile

November 11, 2010

Hello, Vladimir!

The windows are perfect. The customers are satisfied.
Usually I give your contacts to let them know where to order.
I have already given your contact information to foreign partners as sometimes they find it difficult to make delivery of one or another optical product.
In the nearest future we are going to place several orders.

Looking forward to working with you!

Best regards,
Ivan
OEM
Moscow
Russia

November 10, 2010

Hello, Vladimir!

I am writing to thank you for the mirrors you have manufactured for us.
The mirrors totally answer the specification, the quality is very good.

Thanks a lot to you and your company.

Best regards,
Tatiana
--
Tatiana Razumikhina
Scientist
Vaughan, Ontario
Canada

October 15, 2010

Let me tell you that we are very satisfied with the performance of your OPAs - we can reach focus values those are close to optimum...
The coatings are observed to be very stable too - over 3 years we are working with the first OAP in our 150 TW laser.

Dr. habil. Ulrich Schramm
FZ Dresden-Rossendorf (FZD), FWKT
Dresden
Germany

September 20, 2010

Dear Vladimir,

I received the wedged windows on Friday 17th September, thank you.
They fit perfectly and seem to work well at eliminating many of our troublesome internal reflections…
Thank you also Elena for the excellent packaging and shipment details, this is much appreciated.

If I or any of my colleagues need custom sapphire windows in the future I will be sure to recommend TYDEX!

Thank you again,
Roger
--
Dr. Roger Buckingham
University of Southampton
UK

September 6, 2010

Hi Vladimir,

I have now copied the drawing and laser spec to Alexander.
Thank you for your help. I wish all suppliers were as reliable as Tydex!

Best regards,
Peter Hall
PSM
UK

November 16, 2009

Dear Vladimir,

Wow! That is very impressive!
Do you have a shipping number so that I can track them?

Very many thanks for your excellent support.

Warmest Regards,
Peter Hall
PSM
UK

November 6, 2009

Dear Valery!

Thank you very much for your wonderful answers for my questions.
I admire you for your responsible attitude to my questions;
especially you made some experiments especially for me.
I would like to tell you that your clear answers made me understand the Golay cell and TPX.
As your forecast, I have some new questions (attached to this email) to trouble you to give me some advice.
Thank you and your colleagues again for your enthusiasm to my questions!

Best wishes for you all!

Yours sincerely
Lijie
--
Lijie Gunn
Harbin Institute of Technology
China

October 19, 2009
(this is a message from the forum at www.astronomy.ru)

I was contacting the company.
I got quick responses to my questions
and what is more important all responses were expert and correct.
I appreciate the manner of communicating with potential client.
This company proved to be strong and responsible to the clients.

Nick name Ysdanko
--
Y.S. Danko
Tyumen State University Russia

July 23, 2009

Dear Valery,

Thanks for your prompt response. This was very helpful to me.

I tried the test you suggested and I could confirm that your detector is working as expected.
I am actually quite impressed how sensitive your opto-acoustic instrument is...

Now that I am convinced that the Golay detector works as specified
I'll have to focus on the THz generation device.
Thanks again.

Best regards,
Harald
--
Dr. Harald Guenther
Vice President
Photonic Products
Monmouth Junction, NJ
USA

July 16, 2009

Dear Alexander,

Your web site is very good and your products are of high quality.
Sometimes we buy optics and components from St. Petersburg where we have friendly ties.
I made a request from your web site for off-axis parabolic mirrors of different focus distances and diameters…

Best regards,
Nikolay Sinyavsky
Semiconductor Physics Institute
Vilnius
Lithuania

April 13, 2009

Parabolic mirror is more expensive than spherical mirror, but it is also much better in collimation.
We would like to order one piece for the collimation on bench.
First, it will get rid of half wavefront error and give a better beam spot shape for every chord.
Second, it gives us a chance to compare the  difference between the parabolic and spherical mirrors.
This should be helpful for future upgrade to more chords.

Both price and delivery time from Tydex are better than the others I could find.

Best regards,
Peng Xu
MIT
Cambridge, MA
USA

February 9, 2009

All other specs are fine; we have been working with our 250mm focal length parabola now for quite a while and are very happy with the performance and the stability of the coating.

Best regards,
Dr. Ulrich Schramm
FZD
Dresden
Germany

May 17, 2008

Dear Alexander,

I was away from the lab for a while and just back on Monday.
I was able to review your offer and the price is not so attractive but
honestly I don't know if there is another company that is able to do
such parabola.
As I appreciate the good work you have done with the parabola you
provided us, among all the optics company I know I would prefer to work
with you.

Regards,
Sylvain Fourmaux
Universite du Quebec
Quebec
Canada 

April 10, 2008

Hi Denis,

Thank you very much for manufacturing the silicon prisms for us.
They work really well, and our research is advancing quickly thanks to your
efforts in getting them to us so expeditiously!

Best regards,
Moyra
--
Moyra K. Mc Manus
IBM
USA

March 28, 2008

Hi Vladimir,

Yes, we received the parts and installed them (coating type 1) in
our system. They work quite well and we are happy to see that they match our requirements.
I appreciate your efforts for delivering the parts so fast. Thank you, Vladimir!

Best regards,
Ivan
------
Iván Cámara Mayorga
Max Planck Institut für Radioastronomie
Bonn

Germany

February 20, 2008

Dear Sir or Madam,

we plan to setup a high intensity laser physics experiment at the Institute for Optics and Quantum Electronics in Jena/Germany. It is almost similar to an experiment which was done last year at Max-Born-Institute in Berlin with two off-axis mirrors from you.

They recommend your firm and we want to buy two similar off-axis parabolic mirrors.

Thanks in advance.

Sincerely,
Christian Roedel
Institute of Optics and Quantum Electronics
Jena
Germany  

 

November 6, 2007

Notch filter was received last week.
I tested it - it's OK.
Thank you very much for your job.

Best regards,
Mikhail Kantor
Ioffe Physical-Technical Institute of Russian Academy of Sciences
Russia  

April 14, 2007

We have been quite happy with the Si lenses Tydex has provided us in the past. We need to order some new ones similar to ordered previously.

Erich Grossman
National Institute of Standards and Technology
Boulder, CO
USA   

October 30, 2007

Thank you for your prompt reply.
Yes, we are very satisfied with the HRFZ-Si windows you already provided us.

Many thanks and many greetings,
Florian
--
Dr. Florian Formanek
Sony Corporation
Tokyo
Japan

October 16, 2006

We received the two mirrors on our PO last week.
They were expertly packed, and the report paperwork included was excellent.
I have inspected the mirrors and their coatings, and report that they are very good.
Overall, we have been very impressed with the workmanship, the correspondence, and the excellent service from Tydex.
Thank you and we look forward to working with you on other projects.

Gabe Bloxham
Australian National University
Australia  

September 28, 2006

From other customers I have heard that you have fast delivery time
and good quality products which make you an attractive supplier.

Best regards,
Simona
--
Dr. Simona M. Cristescu
Radboud University Nijmegen
Nijmegen
The Netherlands 

August 10, 2006

Dear Alex,

My visit to the production facility and my discussions with you and
Grigory were very useful. I have reported to LIGO that Tydex is a
valuable source for off-axis parabolic mirrors.

Sincerely,
Mike
--
Michael R. Smith
California Institute of Technology
Pasadena, CA
USA  

April 6, 2006

We have bought a mid-infrared polarizer from you last year and we
were quite satisfied.

Thank you and best regards,
Guilherme Temporao
University of Geneva
Switzerland   

February 13, 2006

On Friday the notch-filter arrived and we are very happy with it, although it had a little smear in the gelatin. But this won't affect the great performance of the filter. Thank you very much. With the bigger aperture angle, we are now ready to collect more light, and that's the thing we wanted. And the mount fits perfectly. It's marvelous.

Best regards to Russia. It was a pleasure to work with professionals.

Peter Fischer
Heinrich-Heine-Universität
Düsseldorf
Germany

February 9, 2004

As we got our last order now and we are really satisfied with the quality of
ZnSe ATR-prisms, I would like to ask you for a new offer.
We are also interested in buying hemispherical ATR-prisms for the use in the
"seagull"-unit of Harrick.

Thank you in advance and the best wishes,

Dr. Britta Rossenbeck
MPI for Iron Research
Düsseldorf
Germany