Special Section on Optical Frequency Combs

Analysis of the second harmonic generation of a femtosecond optical frequency comb

[+] Author Affiliations
Dong Wei, Masato Aketagawa

Nagaoka University of Technology, Department of Mechanical Engineering, Nagaoka City, Niigata 940-2188, Japan

Opt. Eng. 53(12), 122604 (Jul 11, 2014). doi:10.1117/1.OE.53.12.122604
History: Received February 19, 2014; Revised April 3, 2014; Accepted April 14, 2014
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Abstract.  The second harmonic generation (SHG) of a femtosecond optical frequency comb (FOFC) has been studied. This work focuses on the SHG frequencies that are generated by the mixing of even-numbered frequency components from the original comb with odd-numbered components. It is observed that the generation of those frequencies is the reason the original FOFC and FOFC-based SHG signal have the same repetition frequency. The theoretical derivation agrees with the result of an optical experiment. Our results may be of use with the high-harmonic-generation process and FOFC-based SHG applications, including high-resolution spectroscopy, attosecond pulse generation, and precision length measurement.

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© 2014 Society of Photo-Optical Instrumentation Engineers

Citation

Dong Wei and Masato Aketagawa
"Analysis of the second harmonic generation of a femtosecond optical frequency comb", Opt. Eng. 53(12), 122604 (Jul 11, 2014). ; http://dx.doi.org/10.1117/1.OE.53.12.122604


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