Serial arrangement for high-power solid state amplifiers with phase-conjugating mirror

Hans Joachim Eichler; Andreas Haase; Oliver Mehl

doi:10.1117/12.248610

26 August 1996 Serial arrangement for high-power solid state amplifiers with phase-conjugating mirror

Hans Joachim Eichler, Andreas Haase, Oliver Mehl

Proceedings Volume 2788, High-Power Lasers: Gas and Solid State Lasers; (1996) https://doi.org/10.1117/12.248610
Event: Lasers, Optics, and Vision for Productivity in Manufacturing I, 1996, Besancon, France

Abstract

To increase the beam quality of existing lasers we developed flash lamp pumped master oscillator power amplifier systems (MOPA) with phase conjugating SBS-mirrors. The used Nd:YALO as active material shows no remarkable stress birefringence resulting in a simple optical arrangement. With a single amplifier rod average output powers of 4 watt up to 140 watt were realized with a beam quality of 1.1 times the diffraction limit. Serial arrangements of amplifiers were investigated to increase the average output power. By using an optical system between the individual rods the pump power can be tuned over a wide range. The parameters of the used two lens system can be optimized to avoid damage of optical components and secure a high efficiency independent of thermal lensing. With a two amplifier system an average output power of 1 watt up to 210 watts in a near diffraction limited beam could be realized. The system works with a repetition rate of 100 Hz and emits per flash a train of 13 Q-switched pulses with an FWHM of about 90 ns. Calculations for a serial arrangement of six amplifiers were made and show the possibility to achieve an average output power of 1 kW.

Citation Download Citation

Hans Joachim Eichler, Andreas Haase, and Oliver Mehl "Serial arrangement for high-power solid state amplifiers with phase-conjugating mirror", Proc. SPIE 2788, High-Power Lasers: Gas and Solid State Lasers, (26 August 1996); https://doi.org/10.1117/12.248610

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available