title: High efficiency terahertz-wave photonic crystal fiber optical parametric oscillator.
abstract: We theoretically propose phase matched terahertz (THz)-wave generation via degenerate four-wave mixing (FWM) in a fiber optical parametric oscillator (FOPO) with our newly designed photonic crystal fiber (PCF). Perfect phase matching is realized when we locate the pump wavelength in the normal group-velocity dispersion (GVD) regime. The generated THz-wave can be tuned from 4.7578 to 5.9015 THz by varying the pump wavelength. Moreover, peak power of 27.38 W at 5.9015 THz with conversion efficiency of 1.37% is realized when the pump peak power of 2000 W is at 4.675 μm in our FOPO.
authors.affiliation: State Key Laboratory of Transient Optics and Photonics Technology, Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Science (CAS), Xi’an 710119, China.
authors.forename: Shaopeng
authors.initials: S
authors.lastname: Li
authors.forename: Hongjun
authors.initials: H
authors.lastname: Liu
authors.forename: Nan
authors.initials: N
authors.lastname: Huang
authors.forename: Qibing
authors.initials: Q
authors.lastname: Sun
authors.forename: Xuefeng
authors.initials: X
authors.lastname: Li
mesh_terms: D000465:Algorithms; D004867:Equipment Design; D005336:Fiber Optic Technology / Q000379:methods; D006801:Humans; D008962:Models, Theoretical; D009369:Neoplasms / Q000175:diagnosis; D055100:Optical Fibers; D055069:Terahertz Imaging / Q000295:instrumentation / Q000379:methods*; D055053:Terahertz Radiation