Search Menu
Photonics Media Photonics Buyers' Guide Photonics EDU Photonics Spectra BioPhotonics EuroPhotonics Industrial Photonics Photonics Showcase Photonics ProdSpec Photonics Handbook
More News
Email Facebook Twitter Google+ LinkedIn

Legend HE Cryo
Aug 2005
Coherent Inc.Request Info
High-Power Ti:S Amplifier
SANTA CLARA, Calif., Aug. 25 -- Coherent Inc. (Santa Clara, CA) (Nasdaq: COHR) has expanded its family of ultrafast laser products with the Legend HE Cryo, a high-power titanium:sapphire (Ti:S) amplifier that delivers up to 7 mJ/pulse with a pulse duration of less than 50 femtoseconds -- more than double the duration of earlier Legend amplifiers. The Legend HE Cryo also sets new standards in terms of average power (up to 25 W) and peak power (over 100 GW); yet the beam quality (M2<1.5), noise levels and pulse-to-pulse stability (±1%) are similar to amplifiers with much lower power ratings, the company said. The new amplifier can be operated at pulse repetition rates up to 7 kHz.

Coherent said that in the past, the operating power of high-performance Ti:S amplifiers has been limited by increased thermal lensing in the Ti:S crystal. The Legend HE Cryo uses a closed-loop cryogenic "cold finger" to cool the Ti:S crystal to 33? K, thus reducing the thermal lensing effect by nearly three orders of magnitude. This allows the new Legend HE Cryo multipass amplifier to take full advantage of the 90-W output power available from Coherent Evolution pump lasers.

Applications for the Legend HE Cryo include particle injection for linear accelerators, high-energy plasma studies and research in surface physics effects. The high-power output is also useful for investigations of advanced materials processing techniques in micromachining and microelectromechanical systems (MEMs) fabrication.

For more information, visit:; e-mail:

Coherent, Inc.
5100 Patrick Henry Dr.
Santa Clara, CA 95054
Phone: (408) 764-4983
Toll Free: (800) 527-3786
Fax: (408) 764-4825


* Message:
(requirements, questions for supplier)
Your contact information
* First Name:
* Last Name:
* Email Address:
* Company:
Address 2:
Postal Code:
* Country:
Phone #:
Fax #:

Register or login to auto-populate this form:
Login Register
* Required

When you click "Send Request", we will record and send your personal contact information to Coherent Inc. by email so they may respond directly. You also agree that Photonics Media may contact you with information related to this inquiry, and that you have read and accept our Privacy Policy and Terms and Conditions of Use.
Coherentfemtosecondslaser productsLegend HE Cryolinear acceleratorsProductsTi:S crystaltitanium:sapphireultrafast laserslasers

Terms & Conditions Privacy Policy About Us Contact Us
back to top
Facebook Twitter Instagram LinkedIn YouTube RSS
©2018 Photonics Media, 100 West St., Pittsfield, MA, 01201 USA,

Photonics Media, Laurin Publishing
x We deliver – right to your inbox. Subscribe FREE to our newsletters.
Are you interested in this product?
When you click "Send Request", we will send the contact details you supply to Coherent Inc. so they may respond to your inquiry directly.

Email Address:
Stop showing me this for the remainder of my visit
We use cookies to improve user experience and analyze our website traffic as stated in our Privacy Policy. By using this website, you agree to the use of cookies unless you have disabled them.