Skip to main content

Research Repository

Advanced Search

High-power operation of coherently coupled tapered laser diodes in an external cavity

Schimmel, G.; Doyen, I.; Janicot, S.; Hanna, M.; Georges, P.; Lucas-Leclin, G.; Decker, J.; Crump, P.; Erbert, G.; Kaunga-Nyirenda, S.; Moss, D.; Bull, S.; Larkins, E.C.; Witte, U.; Traub, M.

Authors

G. Schimmel

I. Doyen

S. Janicot

M. Hanna

P. Georges

G. Lucas-Leclin

J. Decker

P. Crump

G. Erbert

S. Kaunga-Nyirenda

D. Moss

S. Bull steve.bull@nottingham.ac.uk

E.C. Larkins

U. Witte

M. Traub



Abstract

We demonstrate a rear-side phase-locking architecture with two high-brightness diode lasers. This technique is based on the passive phase-locking of emitters in an external cavity on their rear facet, and their coherent combination on the front facet. Two high-brightness high-power tapered laser diodes are coherently combined using a Michelson-based cavity. The combining efficiency is above 80% and results in an output power of 6.7 W in a nearly diffraction-limited beam. The rear-side architecture is then used with a laser bar of 5 tapered emitters using an interferometric extended cavity, based on a diffractive optical element. We describe the experimental evaluation of the diffractive optical element, and the phase-locked operation of the laser bar.

Journal Article Type Conference Paper
Publication Date May 23, 2016
Journal Proceedings of SPIE
Print ISSN 0277-786X
Electronic ISSN 0277-786X
Publisher Society of Photo-optical Instrumentation Engineers
Peer Reviewed Peer Reviewed
Volume 9733
Article Number 97330I
Book Title High-Power Diode Laser Technology and Applications XIV
APA6 Citation Schimmel, G., Doyen, I., Janicot, S., Hanna, M., Georges, P., Lucas-Leclin, G., …Traub, M. (2016). High-power operation of coherently coupled tapered laser diodes in an external cavity. Proceedings of SPIE, 9733, https://doi.org/10.1117/12.2211613
DOI https://doi.org/10.1117/12.2211613
Keywords coherent beam combining, passive phase-locking, self-organized extended cavity, diode lasers
Publisher URL https://www.spiedigitallibrary.org/conference-proceedings-of-spie/9733/1/High-power-operation-of-coherently-coupled-tapered-laser-diodes-in/10.1117/12.2211613.short?SSO=1
Copyright Statement Copyright information regarding this work can be found at the following address: http://eprints.nottingh.../end_user_agreement.pdf
Additional Information Schimmel, G. [et al.], “High-power operation of coherently coupled tapered laser diodes in an external cavity", Proc. SPIE, High-power diode laser technology and Applications XIV, Editor, Mark S. Zediker, v. 9733, Article Number 97330I, (2016). doi:10.1117/12.2211613.

Copyright 2016 Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.

Files

SPIE 2016.pdf (3.7 Mb)
PDF

Copyright Statement
Copyright information regarding this work can be found at the following address: http://eprints.nottingham.ac.uk/end_user_agreement.pdf





You might also like



Downloadable Citations

;