Slab-coupled optical waveguide lasers and amplifiers

Gary M. Smith; Joseph P. Donnelly; Leo J. Missaggia; Michael K. Connors; Shawn M. Redmond; Kevin J. Creedon; David C. Mathewson; Reuel B. Swint; Antonio Sanchez-Rubio; George W. Turner

doi:10.1117/12.905028

8 February 2012 Slab-coupled optical waveguide lasers and amplifiers

Gary M. Smith, Joseph P. Donnelly, Leo J. Missaggia, Michael K. Connors, Shawn M. Redmond, Kevin J. Creedon, David C. Mathewson, Reuel B. Swint, Antonio Sanchez-Rubio, George W. Turner

Author Affiliations +

Proceedings Volume 8241, High-Power Diode Laser Technology and Applications X; 82410S (2012) https://doi.org/10.1117/12.905028
Event: SPIE LASE, 2012, San Francisco, California, United States

Abstract

Slab-coupled optical waveguide lasers (SCOWLs) and amplifiers (SCOWAs) are inherently low-confinement structures with large nearly-circular modes that are easily coupled to optical fibers or collimated for free-space applications. Recently SCOWL powers have increased to 3 W by increasing the cavity length to 1 cm and improving the heat removal. SCOWAs are coherently combined using active phase control to achieve a very high-brightness source. Our coherent beam combining system consists of single-pass amplifiers with angled-facet SCOWAs that suppress feedback. Single-pass, 5-mm long, SCOWAs have now been demonstrated with 1.5 W CW output with only 50 mW seed power. Arrays of 47 SCOWAs have demonstrated a raw power of 57 W with 50 mW of seed power per element. A coherent beam combining demonstration is currently being assembled.

Citation Download Citation

Gary M. Smith, Joseph P. Donnelly, Leo J. Missaggia, Michael K. Connors, Shawn M. Redmond, Kevin J. Creedon, David C. Mathewson, Reuel B. Swint, Antonio Sanchez-Rubio, and George W. Turner "Slab-coupled optical waveguide lasers and amplifiers", Proc. SPIE 8241, High-Power Diode Laser Technology and Applications X, 82410S (8 February 2012); https://doi.org/10.1117/12.905028

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