Title :
Tunable Optoelectronic Oscillator Using FWM Dynamics of an Optical-Injected DFB Laser
Author :
Tingting Zhang ; Jintian Xiong ; Peng Wang ; Jilin Zheng ; Fangzheng Zhang ; Tao Pu ; Xiangfei Chen
Author_Institution :
Nanjing Nat. Lab. of Microstructures, Nanjing Univ., Nanjing, China
Abstract :
A wideband frequency-tunable optoelectronic oscillator using four-wave mixing nonlinear dynamics of an optical-injected distributed feedback (DFB) semiconductor laser is proposed and experimentally demonstrated. Utilizing the wavelength-selective optical gain of the DFB laser under optical injection, a frequency-tunable microwave photonic filter is realized, which is used as the desired oscillation frequency selector. Therefore, the electrical bandpass filter is not required in the proposed scheme. An optoelectronic oscillating signal with a frequency tuned from 9.63 to 19.11 GHz is obtained by changing the injection parameters. The single sideband phase noise of the generated 13.74-GHz microwave signal is measured to be -103.19 dBc/Hz at 10-kHz offset.
Keywords :
distributed feedback lasers; microwave filters; microwave oscillators; microwave photonics; multiwave mixing; optical filters; semiconductor lasers; FWM dynamics; four-wave mixing nonlinear dynamics; frequency 9.63 GHz to 19.11 GHz; frequency-tunable microwave photonic filter; microwave signal; optical-injected DFB laser; optical-injected distributed feedback semiconductor laser; optoelectronic oscillating signal; oscillation frequency selector; single sideband phase noise; wavelength-selective optical gain; wideband frequency-tunable optoelectronic oscillator; Masers; Microwave filters; Nonlinear optics; Optical feedback; Optical filters; Oscillators; Semiconductor lasers; Distributed feedback lasers; Microwave generation; Optoelectronic oscillators; microwave generation; optoelectronic oscillators;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2015.2421291
