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Phase-matched generation of high-order continuous-wave coherent Raman sidebands
Authors:Shin-ichi Zaitsu  Totaro Imasaka
Institution:1. Graduate School of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan;2. PRESTO, Japan Science and Technology Agency, 4-1-8 Honcho Kawaguchi, Saitama, 332-0012, Japan;3. Center for Future Chemistry, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan;1. Faculty of Science, Physics Department, Alexandria University, Mohram Beh, 21511Alexandria, Egypt;2. Faculty of Science, Physics Department, Al Jouf University, Al Jouf, Saudi Arabia;1. Department of Electrical and Computer Systems Engineering, School of Engineering, Monash University, 46150 Selangor, Malaysia;2. Advanced Computing and Simulating Laboratory (AXL), Department of Electrical and Computer Systems Engineering, Monash University, Clayton, VIC 3800, Australia;1. Department of Electronics and Communication Engineering, Punjabi University, Patiala, Punjab, India;2. Department of Electronics and Communication Engineering, Thapar University, Patiala, Punjab, India
Abstract:We demonstrate the generation of continuous-wave (cw) Raman sidebands through phase-matched four-wave mixing (FWM) in molecular hydrogen. The phase-matching conditions of the intracavity FWM driven in our dispersion-compensated high-finesse cavity are satisfied over a 52.8 THz-wide frequency range (763.9–883.6 nm). This leads to the generation of high-order anti-Stokes emission. The cw Raman sidebands have sufficient bandwidth to allow the synthesis of a train of optical pulses with a duration of 13 fs at a repetition rate of 17.6 THz under phase-locked conditions.
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