Nd oscillator with fiber Q-switch

Andreas Haase; Oliver Mehl

doi:10.1117/12.308116

13 May 1998 Nd oscillator with fiber Q-switch

Andreas Haase, Oliver Mehl

Proceedings Volume 3267, Laser Resonators; (1998) https://doi.org/10.1117/12.308116
Event: Optoelectronics and High-Power Lasers and Applications, 1998, San Jose, CA, United States

Abstract

Industrial and scientific applications require lasers with high beam quality in Q-switched operation. In oscillators the high reflecting mirror can be substituted by a phase conjugating mirror based on stimulated Brillouin scattering (SBS). Due to the nonlinear response of such a mirror not only the beam quality can be improved also Q-switching can be obtained with the same element. Up to now toxic liquids or gases under high pressure were used as SBS-media in pulsed solid state oscillators. These media can be substituted by a simple multimode fiber. A pulsed oscillator with a multimode fiber inside was realized. Nd:YALO was used as active medium. The flashlamp duration is about 140 microsecond(s) and the threshold energy for laser operation is 5 J. The repetition rate can be varied from 1 Hz up to 25 Hz. The energy per shot is about 16 mJ. Due to the relatively low SBS threshold a burst of Q-switched pulses per flashlamp shot occurs. The pulse width can be varied between 0.5 ns and 10 ns which depends on the used resonator configuration and the fiber.

Citation Download Citation

Andreas Haase and Oliver Mehl "Nd oscillator with fiber Q-switch", Proc. SPIE 3267, Laser Resonators, (13 May 1998); https://doi.org/10.1117/12.308116

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