Open AccessUltra-wideband and high-gain parametric amplification in telecom wavelengths with an optimally mode-matched PPLN waveguide
Author(s) -
Yong Meng Sua,
Jiayang Chen,
YuPing Huang
Publication year - 2018
Publication title -
optics letters/optics index
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.524
H-Index - 272
eISSN - 1071-2763
pISSN - 0146-9592
DOI - 10.1364/ol.43.002965
Subject(s) - optics , wideband , wavelength , materials science , waveguide , parametric statistics , mode (computer interface) , optoelectronics , telecommunications , physics , computer science , statistics , mathematics , operating system
We report a wideband optical parametric amplification (OPA) over 14 THz covering telecom S, C, and L bands with observed maximum parametric gain of 38.3 dB. The OPA is realized through cascaded second-harmonic generation and difference-frequency generation (cSHG-DFG) in a 2 cm periodically poled LiNbO 3 (PPLN) waveguide. With tailored cross section geometry, the waveguide is optimally mode matched for efficient cascaded nonlinear wave mixing. We also identify and study the effect of competing nonlinear processes in this cSHG-DFG configuration.