Abstract

An external cavity using a binary phase grating has been developed to achieve coherent combining of five quantum-cascade lasers emitting at 4.65μm. The grating phase profile is designed to combine five beams of equal intensities into a single beam with a good efficiency (75%). The performances of this cavity concerning output power, stability, combining efficiency and beam quality are detailed. We report a CW combining efficiency of 66% corresponding to an output power of 0.5W with a good beam quality (M2<1.6).

© 2011 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Coherent combining of two quantum-cascade lasers in a Michelson cavity

Guillaume Bloom, Christian Larat, Eric Lallier, Mathieu Carras, and Xavier Marcadet
Opt. Lett. 35(11) 1917-1919 (2010)

Passive coherent beam combination of three Nd:YAG lasers using cascaded Michelson-type compound cavities

Pengfei Zhao, Zhiyong Dong, Jingyuan Zhang, and Xuechun Lin
Opt. Express 26(14) 18019-18027 (2018)

Simultaneous beam combination and aperture filling of coherent laser arrays by conjugate Dammann gratings

Aimin Yan, Liren Liu, Enwen Dai, Jianfeng Sun, and Yu Zhou
Opt. Lett. 35(8) 1251-1253 (2010)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (5)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription