915 nm laser bar-based high-performance sources for fiber laser pumping

Rajiv Pathak; John Minelly; Jouko Haapamaa; Jason Watson; David Schleuning; Heiko Winhold; Eli Weiss; Mika Toivonen; Sami Lehkonen; David Roh; Nels Ostrom; Dan Grasso; Juergen Pfaff; T. C. Hasenberg

doi:10.1117/12.809785

23 February 2009 915 nm laser bar-based high-performance sources for fiber laser pumping

Rajiv Pathak, John Minelly, Jouko Haapamaa, Jason Watson, David Schleuning, Heiko Winhold, Eli Weiss, Mika Toivonen, Sami Lehkonen, David Roh, Nels Ostrom, Dan Grasso, Juergen Pfaff, T. C. Hasenberg

Author Affiliations +

Proceedings Volume 7198, High-Power Diode Laser Technology and Applications VII; 719808 (2009) https://doi.org/10.1117/12.809785
Event: SPIE LASE: Lasers and Applications in Science and Engineering, 2009, San Jose, California, United States

Abstract

Fiber lasers have made significant progress in terms of power output, beam quality and operational robustness over the past few years. Key to this progress has been advances in two technologies - fiber technology and 9xx nm diode laser pump technology based on single emitters. We present the operational characteristics of our new high brightness 9xx nm fiber laser pump sources based on diode laser bars and diode laser bar arrays and discuss the design trade offs involved for realization of devices focused on this application. These trade offs include achieving the lowest slow axis divergence while maintaining high wall plug efficiency and minimizing facet power density to maximize reliability.

Citation Download Citation

Rajiv Pathak, John Minelly, Jouko Haapamaa, Jason Watson, David Schleuning, Heiko Winhold, Eli Weiss, Mika Toivonen, Sami Lehkonen, David Roh, Nels Ostrom, Dan Grasso, Juergen Pfaff, and T. C. Hasenberg "915 nm laser bar-based high-performance sources for fiber laser pumping", Proc. SPIE 7198, High-Power Diode Laser Technology and Applications VII, 719808 (23 February 2009); https://doi.org/10.1117/12.809785

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