3 May 2001 Past, present, and future of optical comb generation
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Abstract
We review here the historical development of an optical comb generation technology. In 1991, an optical comb as wide as 1 THz was generated for the first time for the purpose of the optical frequency measurement, and the difference frequency between two lasers was measured. The measured difference frequency was only 500 GHz at that time. However, measurable difference frequency has been increased by thousand times in nine years. Finally, absolute frequency measurement of laser has become possible.
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Motonobu Kourogi, Motoichi Ohtsu, "Past, present, and future of optical comb generation", Proc. SPIE 4269, Laser Frequency Stabilization, Standards, Measurement, and Applications, (3 May 2001); doi: 10.1117/12.424487; https://doi.org/10.1117/12.424487
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