Title :
Continuous-Wave Operation of Semiconductor Optical Amplifier-Based Multiwavelength Tunable Fiber Lasers With 25-GHz Spacing
Author :
Baby, Varghese ; Chen, Lawrence R. ; Doucet, Serge ; LaRochelle, Sophie
Author_Institution :
Swain LLP, Ottawa
Abstract :
We demonstrate wide bandwidth operation in a semiconductor optical amplifier (SOA)-based fiber laser with a wavelength spacing of 25 GHz. A broadband multiwavelength filter based on superimposed and chirped fiber Bragg gratings is used for wavelength selection. Three different cavity configurations are presented and compared: 1) a single-SOA standing-wave cavity; 2) a single-SOA ring cavity; and 3) a double-SOA ring cavity. Up to 41 wavelengths are obtained with a signal-to-noise ratio of 35 dB and a wavelength tunability of 10 nm.
Keywords :
Bragg gratings; optical fibre amplifiers; optical filters; semiconductor optical amplifiers; broadband multiwavelength filter; cavity configurations; chirped fiber Bragg gratings; continuous-wave operation; double-SOA ring cavity; frequency 25 GHz; multiwavelength tunable fiber lasers; semiconductor optical amplifier; signal-to-noise ratio; single-SOA ring cavity; single-SOA standing-wave cavity; wavelength spacing; wavelength tunability; Bandwidth; Broadband amplifiers; Fiber lasers; Operational amplifiers; Optical fiber amplifiers; Optical filters; Semiconductor lasers; Semiconductor optical amplifiers; Stimulated emission; Tunable circuits and devices; Fiber lasers; multiwavelength lasers; optical gratings; semiconductor optical amplifiers (SOAs);
Journal_Title :
Selected Topics in Quantum Electronics, IEEE Journal of
DOI :
10.1109/JSTQE.2007.896064
