Long-term measurement of optical frequencies using a simple, robust and low-noise fiber based frequency comb

Autor: Thomas R. Schibli, Atsushi Onae, Masaaki Hirano, Masataka Nakazawa, Hajime Inaba, Toshiaki Okuno, Kaoru Minoshima, Feng-Lei Hong, Hirokazu Matsumoto, Masashi Onishi, Yuta Daimon
Rok vydání: 2009
Předmět:
Zdroj: Optics express. 14(12)
ISSN: 1094-4087
Popis: We have developed a fiber-based frequency comb system consisting of a simple mode-locked fiber laser and a backward pumping amplifier combined with a highly nonlinear fiber with a short zerodispersion wavelength. As a result, the signal to noise ratio of the obtained carrier-envelope-offset frequency beat is larger than 45 dB at a bandwidth of 100 kHz. Furthermore, we have succeeded in measuring the optical frequencies of a 1542-nm acetylene-stabilized laser and a 532-nm iodinestabilized Nd:YAG laser continuously for more than one week using the fiber-based comb system. The long-term measurement revealed that the frequency stability of the iodine-stabilized laser was 5.7 x 10(-15) with 100 000 s averaging.
Databáze: OpenAIRE