Coherent polarization locking of multimode beams in a diode bar

P. Purnawirman; P. B. Phua

doi:10.1117/12.873692

21 February 2011 Coherent polarization locking of multimode beams in a diode bar

P. Purnawirman, P. B. Phua

Proceedings Volume 7918, High-Power Diode Laser Technology and Applications IX; 791815 (2011) https://doi.org/10.1117/12.873692
Event: SPIE LASE, 2011, San Francisco, California, United States

Abstract

We demonstrate coherent polarization locking of multimode beams from four broad area emitters in a diode bar. The beams are overlapped into single output by using walk-off crystals and waveplates while their phases are locked via polarization discrimination. Coherent locking of multimode beams enabled power scaling of coherent diode output while retaining beam quality of single emitter. We obtained power of 7.2 W with M² of 1.5 x 11.5 from a 980 nm diode laser. This corresponds to brightness improvement of more than an order of magnitude.

Citation Download Citation

P. Purnawirman and P. B. Phua "Coherent polarization locking of multimode beams in a diode bar", Proc. SPIE 7918, High-Power Diode Laser Technology and Applications IX, 791815 (21 February 2011); https://doi.org/10.1117/12.873692

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