High-repetition-rate 2.70 and 2.79 /spl mu/m ErCr:YSGG lasers

Author

Ziolek, C. ; Lubatschowski, H. ; Hogele, A. ; Heisterkamp, A. ; Ertmer, W. ; Wellig, H.

Author_Institution

Laser Zentrum Hannover eV, Germany

fYear

1998

fDate

3-8 May 1998

Firstpage

298

Lastpage

299

Abstract

Summary form only given. We report on flashlamp-pumped high-power laser operation of Er/sup 3+/Cr:YSGG in the mid-IR at high repetition rates of up to 75 Hz in the free running and Q-switched regime. Flashlamp pumping has been performed in a single lamp silver plated elliptical reflector. Thus the pump light is focused towards the center of the laser rod resulting in a pump profile giving better coincidence between mode and pump volume. This is essential for laser operation at high repetition rates due to the occurring strong thermal side effects, e.g. lensing or birefringence. Although the pulse repetition frequency is high the pump power could be held below 600 W.

Keywords

Q-switching; chromium; erbium; optical pumping; solid lasers; 2.70 micron; 2.79 micron; 75 Hz; Er/sup 3+/Cr:YSGG; Q-switching; YScGG:Er,Cr; YScGa5O12:Er,Cr; flashlamp pumping; high-power mid-IR laser; pulse repetition rate; Fiber lasers; Laser excitation; Laser modes; Laser transitions; Optical pulse generation; Optical pulses; Pulse modulation; Pump lasers; Solids; Space vector pulse width modulation;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics, 1998. CLEO 98. Technical Digest. Summaries of papers presented at the Conference on

Conference_Location

San Francisco, CA, USA

Print_ISBN

1-55752-339-0

Type

conf

DOI

10.1109/CLEO.1998.676193

Filename

676193