Visible-to-near infrared standard source generation using acetylene (C2H2)-stabilized comb-injection-locked technique |
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| Authors: | SH Lee YP Kim TB Eom |
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| Institution: | a Institute for Laser Engineering, College of Electronics and Information, Kyung Hee University, Yongin, Kyungki-Do 446-701, Republic of Korea
b Division of Physical Metrology, Korea Research Institute of Standard and Science, Daejeon 305-340, Republic of Korea |
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| Abstract: | An ultra-stable visible laser source (VLS) was generated by the second harmonic of a selectively injection-locked distributed feedback (DFB) laser from an optical frequency comb with acetylene-stabilized laser seeding. For the second-harmonic generation (SHG) of the injection-locked DFB laser, we used periodically poled lithium niobate (PPLN) crystal and generated the VLS at a region of 771 nm, which was discretely locked to a spacing of 25 GHz within the PPLN bandwidth (180 GHz). The frequency stability of this source was estimated to be 1.1 × 10− 12 with an average time of 1 s. |
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| Keywords: | Injection-locking technique Second-harmonic generation Optical frequency comb |
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