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Conferences > FiO > 2012 > FTh3E > FTh3E.1

Highly Precise Calibration of Spectrographs using Optical Frequency Shifter and Laser Comb Generator

Yo Washizaki, Ken Kashiwagi, Jun Nishikawa, Takayuki Kotani, Hiroshi Suto, Motohide Tamura, and Takashi Kurokawa

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Abstract

We propose a novel calibration system for astronomical spectrographs using optical frequency shifter and laser frequency comb generator. We successfully confirmed comb spectral lines and gas absorption spectrum are precisely frequency-shifted by optical frequency shifters.

© 2012 Optical Society of America

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