Highly stable,frequency-controlled mode-locked erbium fiber laser comb |
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| Authors: | J-L Peng H Ahn R-H Shu H-C Chui JW Nicholson |
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| Institution: | (1) Center for Measurement Standards, 321, Section 2, Kuang Fu Road, Hsinchu, 30042, Taiwan, R.O.C.;(2) Department of Photonics and Institute of Electro-Optical Engineering, National Chiao Tung University, 1001 Ta Hsueh Road, Hsinchu, 30010, Taiwan, R.O.C.;(3) OFS Laboratories, 19 Schoolhouse Road, Somerset, NJ 08873, USA |
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| Abstract: | A mode-locked Er:fiber laser-based optical frequency comb with high stability in the repetition frequency and carrier-envelope offset (CEO) frequency is realized. The CEO beat signal was detected right after the supercontinuum generation by a compact single-beam f–2f self-referencing interferometer, which does not require further delay compensation. The stabilized repetition frequency has an out-of-loop tracking stability of 1.3×10-13/ for an integration time τ less than 1000 s, which is limited by the stability of the frequency measurement system. The stabilized CEO frequency has a residual fluctuation of 0.52 mHz measured with a 1 s gate time. This is, to our knowledge, the highest tracking stability realized for fiber laser-based optical frequency comb. PACS 06.30.Ft; 42.60.Lh; 42.55.Wd |
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