Coherent operation of a high power laser diode array in a compact external cavity

R. G. Waarts, A. Hardy, D. F. Welch, W. Streifer

Research output: Contribution to journalConference articlepeer-review

Abstract

Summary form only given. The coherent operation of a high-power-gain guided laser diode array in a compact external cavity is discussed. The cavity consists of a quarter-pitch graded index lens (GRIN), directly followed by a stripe mirror. A theoretical analysis was performed which predicts the mode discrimination at threshold as well as the corresponding far and near fields for different cavity configurations (laser, anti-reflection coating, lens and mirror design). Several cavity configurations were assembled and their performances were measured. Measurement with the laser diodes operated in continuous-wave mode show single-lobe diffraction-limited output power levels of over 150 mW. Pulsed measurements yield higher power levels of over 300 mW.

Original languageEnglish
Pages (from-to)26
Number of pages1
JournalConference Proceedings - Lasers and Electro-Optics Society Annual Meeting-LEOS
StatePublished - 1989
Externally publishedYes
EventSecond Annual Meeting of the IEEE Lasers and Electro-Optics Society - LEOS '89 - Orlando, FL, USA
Duration: 17 Oct 198920 Oct 1989

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