Solid-state 488-nm laser based on external-cavity frequency doubling of a multi-longitudinal mode semiconductor laser

Vincent Issier; Boris Kharlamov; Thomas Kraft; Andy Miller; David Simons; James Wong; Simon Wong; Andre Wong; Kuochou Tai; Nicolas Guerin; Daniel Zou; Victor Rossin; Marc von Gunten; William Minford; Andy Hulse; Colette Paillet-Allison; Krishnan Parameswaran; Evgeny Churin; Rob Waarts

doi:10.1117/12.761927

13 February 2008 Solid-state 488-nm laser based on external-cavity frequency doubling of a multi-longitudinal mode semiconductor laser

Vincent Issier, Boris Kharlamov, Thomas Kraft, Andy Miller, David Simons, James Wong, Simon Wong, Andre Wong, Kuochou Tai, Nicolas Guerin, Daniel Zou, Victor Rossin, Marc von Gunten, William Minford, Andy Hulse, Colette Paillet-Allison, Krishnan Parameswaran, Evgeny Churin, Rob Waarts

Author Affiliations +

Proceedings Volume 6875, Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications VII; 687514 (2008) https://doi.org/10.1117/12.761927
Event: Lasers and Applications in Science and Engineering, 2008, San Jose, California, United States

Abstract

Results for a new compact 488 nm solid-state laser for biomedical applications are presented. The architecture is based on a multi-longitudinal mode external cavity semiconductor laser with frequency doubling in a ridge waveguide fabricated in periodically poled MgO:LiNbO₃. The diode and the waveguide packaging have been leveraged from telecom packaging technologies. This design enables built-in control electronics, low power consumption (≤ 2.5 W) and a footprint as small as 12.5 x 7 cm. Due to its fiber-based architecture, the laser has excellent beam quality, M² <1.1. The laser is designed to enable two light delivery options: free-space and true fiber delivered output. Multi-longitudinal mode operation and external doubling provide several advantages like low noise, internal modulation over a broad frequency range and variable output power. Current designs provide an output power of 20 mW, but laser has potential for higher power output.

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Vincent Issier, Boris Kharlamov, Thomas Kraft, Andy Miller, David Simons, James Wong, Simon Wong, Andre Wong, Kuochou Tai, Nicolas Guerin, Daniel Zou, Victor Rossin, Marc von Gunten, William Minford, Andy Hulse, Colette Paillet-Allison, Krishnan Parameswaran, Evgeny Churin, and Rob Waarts "Solid-state 488-nm laser based on external-cavity frequency doubling of a multi-longitudinal mode semiconductor laser", Proc. SPIE 6875, Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications VII, 687514 (13 February 2008); https://doi.org/10.1117/12.761927

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KEYWORDS

Waveguides

Semiconductor lasers

Modulation

Second-harmonic generation

Solid state lasers

Fiber lasers

Packaging

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