Tunable diode-pumped microcrystal solid state laser for a miniaturized interferometer

Christoph von Kopylow; Egon Pfeifer; Ingo Waldeck; Andreas S. Rasch; Sven Voigt

doi:10.1117/12.424469

3 May 2001 Tunable diode-pumped microcrystal solid state laser for a miniaturized interferometer

Christoph von Kopylow, Egon Pfeifer, Ingo Waldeck, Andreas S. Rasch, Sven Voigt

Author Affiliations +

Proceedings Volume 4269, Laser Frequency Stabilization, Standards, Measurement, and Applications; (2001) https://doi.org/10.1117/12.424469
Event: Photonics West 2001 - LASE, 2001, San Jose, CA, United States

Abstract

A tunable diode pumped micro-crystal solid-state laser for a miniaturized interferometer was developed. The interferometer is realized as an integrated optic chip. The measurement system is designed for absolute distance interferometry to measure at an operation distance of 50 m, with a maximum linear movement of 5 cm and an accuracy of 5 nm. To achieve this task the laser wavelength is stabilized in the infrared at two wavelengths with a fixed frequency distance of larger than 80 GHz. The reproducible scanning between these two wavelengths is carried out by frequency stabilization of the 2nd harmonic to the absorption lines of an iodine gas cell. The linewidth of the stabilized laser is smaller than 200 kHz. The laser emits the fundamental wavelength (lambda) ₁ equals 1064 nm and the second harmonic (lambda) ₂ equals 532 nm. The laser is continuously tunable without mode hoping over a tuning range of more than 210 GHz (at 532 nm). An optical output power of 150 mW is achieved in the fundamental wavelength and 0.5 mW in the second harmonic part.

Citation Download Citation

Christoph von Kopylow, Egon Pfeifer, Ingo Waldeck, Andreas S. Rasch, and Sven Voigt "Tunable diode-pumped microcrystal solid state laser for a miniaturized interferometer", Proc. SPIE 4269, Laser Frequency Stabilization, Standards, Measurement, and Applications, (3 May 2001); doi: 10.1117/12.424469; https://doi.org/10.1117/12.424469

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