Improved iodine-stabilized Nd:YAG laser

Lennart R. Robertsson; Long-Sheng Ma; Susanne Picard

doi:10.1117/12.424482

3 May 2001 Improved iodine-stabilized Nd:YAG laser

Lennart R. Robertsson, Long-Sheng Ma, Susanne Picard

Proceedings Volume 4269, Laser Frequency Stabilization, Standards, Measurement, and Applications; (2001) https://doi.org/10.1117/12.424482
Event: Photonics West 2001 - LASE, 2001, San Jose, CA, United States

Abstract

In 1977 the 532 nm radiation obtained by frequency-double iodine-stabilized Nd:YAG lasers was included in the revised list of recommended radiations for the practical realization of the definition of the meter. In a planned group of reference lasers at this wavelength at the BIPM, the first two have been completed and a series of beat measurements has been made. The relative short-term stability was typically 5 (DOT) 10^-14. Over longer durations a typical minimum stability floor of about 6 (DOT) 10^-15 is reached. The frequency difference between the BIPM lasers measured over a 10-day period was found to be 63 Hz with a standard uncertainty of 161 Hz. The hyperfine spectrum of the R(56)32-0 line in iodine has been measured using beat frequency techniques and excellent agreement with theory is found, with a residual of the fit of only 400 Hz.

Citation Download Citation

Lennart R. Robertsson, Long-Sheng Ma, and Susanne Picard "Improved iodine-stabilized Nd:YAG laser", Proc. SPIE 4269, Laser Frequency Stabilization, Standards, Measurement, and Applications, (3 May 2001); https://doi.org/10.1117/12.424482

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