Title :
Dynamic Control of Gain Profile in Fiber-Optical Parametric Amplifier by Gain-Transparent SBS
Author :
Liang Wang ; Shu, Chester
Author_Institution :
Dept. of Electron. Eng., Chinese Univ. of Hong Kong, Hong Kong, China
Abstract :
We propose and experimentally demonstrate dynamic control of gain profile in a single-pump fiber-optical parametric amplifier (FOPA) assisted by gain-transparent stimulated Brillouin scattering. The FOPA gain can be enhanced/reduced through controlling the phase-matching condition without disturbing the initial parameters of the FOPA. Both the maximum and minimum gain profiles are obtained, offering operational flexibility in randomly synthesizing the profile to satisfy different requirements. Our synthesis can turn the conventional M-shaped profile into spectrally flat gain with 0.1-dB variation over 24 nm. This scheme can be potentially applied to dual-pump FOPA and can benefit other applications of parametric processes.
Keywords :
optical control; optical fibre amplifiers; optical parametric amplifiers; optical phase matching; optical pumping; stimulated Brillouin scattering; conventional M-shaped profile; dual-pump FOPA gain; dynamic control; gain-transparent SBS; gain-transparent stimulated Brillouin scattering; maximum gain profile; minimum gain profile; operational flexibility; parametric processes; phase-matching; single-pump fiber-optical parametric amplifier; spectrally flat gain; wavelength 24 nm; Fiber nonlinear optics; Gain; Optical fiber amplifiers; Optical frequency conversion; Scattering; Optical parametric amplification; nonlinear fiber optics; optical phase matching; stimulated Brillouin scattering;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2013.2280695
