Title :
A Novel Laser with Tunable and Stable Degree of Polarization
Author :
Fang, Nian ; Wang, Lutang ; Huang, Zhaoming
Author_Institution :
Key Lab. of Special Fiber Opt. & Opt. Access Networks, Shanghai Univ., Shanghai
Abstract :
The authors demonstrate a novel laser with tunable and stable degree of polarization (DOP). It concludes a polarization beams separator (PBS) and a double-orientation fiber-ring resonator, which is composed of a semiconductor optical amplifier (SOA), a polarization controller (PC) and a 2times2 wide-band fiber coupler. By adjusting the PC or the input current of the SOA, the average DOP in time out of the laser varies optionally from 0.16% to 99%. Employing the double-orientation ring resonator structure and PBS polarization combination method, DOP of the laser can be kept stably at any level in the adjustable range.
Keywords :
laser beams; laser cavity resonators; laser tuning; optical fibre couplers; optical fibre polarisation; semiconductor optical amplifiers; DOP; PBS; SOA; degree-of-polarization stability; double-orientation fiber-ring resonator; laser tuning; polarization beam separator; polarization controller; semiconductor optical amplifier; wide-band fiber coupler; Fiber lasers; Laser beams; Laser stability; Optical fiber couplers; Optical fiber polarization; Particle separators; Ring lasers; Semiconductor lasers; Semiconductor optical amplifiers; Tunable circuits and devices; degree of polarization (DOP); depolarization; lasers stableness; tunable lasers;
Conference_Titel :
Microwave Conference, 2008 China-Japan Joint
Conference_Location :
Shanghai
Print_ISBN :
978-1-4244-3821-1
DOI :
10.1109/CJMW.2008.4772553
