title: Comparison analysis of optical frequency comb generation with nonlinear effects in highly nonlinear fibers.
abstract: We compare several schemes for broadband optical frequency comb (OFC) generation based on several nonlinear effects in highly nonlinear fiber (HNLF). Cascaded four wave mixing (CFWM) and self-phase modulation (SPM) processes in HNLF are proved to be effective ways for spectrum broadening. We investigate some parameters affecting the performance of the output OFC in detail. When only CFWM occurs in the HNLF, broadband OFC can be generated with poor power flatness. When only SPM occurs in the HNLF, we obtain a 10 GHz OFC of 103 comb lines within 5-dB power deviation. When both CFWM and SPM simultaneously occur in the HNLF, we obtain a 10 GHz OFC of 143 comb lines within 4.5-dB power deviation. All the OFC generation schemes have the advantages of tunability of central wavelength and repetition frequency.
authors.affiliation: Wuhan National Lab for Optoelectronics, Huazhong University of Science and Technology, Wuhan, 430074, China.
authors.forename: Ting
authors.initials: T
authors.lastname: Yang
authors.forename: Jianji
authors.initials: J
authors.lastname: Dong
authors.forename: Shasha
authors.initials: S
authors.lastname: Liao
authors.forename: Dexiu
authors.initials: D
authors.lastname: Huang
authors.forename: Xinliang
authors.initials: X
authors.lastname: Zhang
mesh_terms: D004867:Equipment Design; D019544:Equipment Failure Analysis; D005336:Fiber Optic Technology / Q000295:instrumentation*; D005374:Filtration / Q000295:instrumentation*; D017711:Nonlinear Dynamics; D012031:Refractometry / Q000295:instrumentation*; D013685:Telecommunications / Q000295:instrumentation*