Open AccessTemperature Dependence of Fiber-Format Multiwavelength Generation Process in Bulk MgO-PPLN Crystal Via High-Power Photonic Crystal Fiber Laser
Author(s) -
Kaili Zhai,
Shuanggen Zhang,
Xiurong Ma,
Youjian Song,
Minglie Hu,
Qingyue Wang,
Kailiang Zhang
Publication year - 2016
Publication title -
ieee photonics journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.725
H-Index - 73
eISSN - 1943-0655
pISSN - 1943-0647
DOI - 10.1109/jphot.2016.2536364
Subject(s) - engineered materials, dielectrics and plasmas , photonics and electrooptics
In this paper, we report on a compact frequency conversion scheme based on high-power photonic crystal fiber (PCF) laser at optical communication band using a multigrating MgO-PPLN crystal. Temperature dependence of wave-vector mismatch, group velocity, central wavelength, and conversion efficiency was theoretically analyzed. Temperature tuning characteristics were experimentally obtained by propagating 240-fs pulses with a 126-MHz repetition rate in a 10-mm-long MgO-PPLN crystal. We also observed and characterized second-harmonic generation (SHG), third-harmonic generation (THG), and fourth-harmonic generation processes in the same crystal. Maximum SHG and THG conversion efficiency values of 27.5% and 4.3% were achieved at 100 °C and 77 °C, respectively.