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Three-Level Lasers End-Pumped with Laser Diode Bars

J. G. Lynn, Robert C. Stoneman, L. Esterowitz

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Abstract

We present a simple optical system designed for the end-pumping of solid state lasers using laser diode bars. Using this optical system we have efficiently coupled the output of a 785 nm, 50- Watt, quasi-cw laser diode bar into a Tm3+:YAG laser operating at 2 μm and achieved 24 % slope efficiency. While intended specifically to pump three-level lasers, the system is applicable to four-level lasers.

About this research paper

What this paper is about

We present a simple optical system designed for the end-pumping of solid state lasers using laser diode bars. Using this optical system we have efficiently coupled the output of a 785 nm, 50- Watt, quasi-cw laser diode bar into a Tm3+:YAG laser operating at 2 μm and achieved 24 % slope efficiency. While intended specifically to pump three-level lasers, the system is applicable to four-level lasers.

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Available abstract

We present a simple optical system designed for the end-pumping of solid state lasers using laser diode bars. Using this optical system we have efficiently coupled the output of a 785 nm, 50- Watt, quasi-cw laser diode bar into a Tm3+:YAG laser operating at 2 μm and achieved 24 % slope efficiency. While intended specifically to pump three-level lasers, the system is applicable to four-level lasers.

Key concepts: Laser, Materials science, Diode-pumped solid-state laser, Optoelectronics, Laser pumping, Optics, Injection seeder, Diode

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