title: A robust and dither-free technique for controlling driver signal amplitude for stable and arbitrary optical phase modulation.
abstract: We propose a robust and dither-free technique using a delay line interferometer, a balanced detector and simple signal processing to adjust the amplitude of the driver signal of an optical phase modulator automatically for stabilizing the modulated phase of an optical carrier at any arbitrary value. The technique is analytically shown to be robust against practical device imperfections. A stable 45 degrees phase shift with deviation less than ± 0.8 degrees is experimentally demonstrated.
authors.affiliation: Department of Electronic and Information Engineering, Shenzhen Graduate School, Harbin Institute of Technology, Shenzhen, Guangdong Province, China. yangyanfu@hitsz.edu.cn
authors.forename: Yanfu
authors.initials: Y
authors.lastname: Yang
authors.forename: Chao
authors.initials: C
authors.lastname: Lu
authors.forename: Alan Pak Tao
authors.initials: AP
authors.lastname: Lau
authors.forename: Yong
authors.initials: Y
authors.lastname: Yao
authors.forename: Yunxu
authors.initials: Y
authors.lastname: Sun
authors.forename: Jun Jun
authors.initials: JJ
authors.lastname: Xiao
authors.forename: H Y
authors.initials: HY
authors.lastname: Tam
authors.forename: P K A
authors.initials: PK
authors.lastname: Wai
mesh_terms: D003198:Computer Simulation; D017076:Computer-Aided Design; D004867:Equipment Design; D019544:Equipment Failure Analysis; D005246:Feedback; D007368:Interferometry / Q000295:instrumentation*; D008027:Light; D008962:Models, Theoretical; D055096:Optical Devices; D012542:Scattering, Radiation; D013685:Telecommunications