Title :
Single output polarization control of fiber DFB laser using injection locking
Author :
Chung, W.H. ; Tam, H.Y. ; Chan, L.Y. ; Wai, P.K.A.
Author_Institution :
Dept. of Electr. Eng., Hong Kong Polytech. Univ., China
Abstract :
In conclusion, we used an active injection locking technique to stabilize the output polarization of a fiber DFB laser. By adjusting the operating current and injection power of the Fabry -Perot (FP) LD, we achieved nearly linear polarized output with DOP larger than 95% and SMSR higher than 45 dB. We had also shown that this technique can eliminate the amplitude jitter of an externally modulated DFB-fibre laser, and observed a 3.8 dB power penalty improvement in a 10 Gb/s 41-km transmission experiment. Our results indicate that highly polarized multi-wavelength sources can be realized by injection locking of a single low-cost FP-LD with several fiber lasers.
Keywords :
distributed feedback lasers; fibre lasers; jitter; laser mode locking; laser stability; optical fibre polarisation; optical modulation; 10 Gbit/s; 41 km; SMISR; active injection locking; amplitude jitter; fiber DFB laser; fiber lasers; highly polarized multi-wavelength sources; injection locking; low-cost FP-LD; nearly linear polarized output; output polarization; power penalty improvement; single output polarization control; transmission experiment; Erbium-doped fiber lasers; Fiber lasers; Injection-locked oscillators; Laser feedback; Laser mode locking; Laser noise; Laser tuning; Optical control; Optical fiber communication; Optical fiber polarization;
Conference_Titel :
Optical Fiber Communication Conference and Exhibit, 2002. OFC 2002
Print_ISBN :
1-55752-701-6
DOI :
10.1109/OFC.2002.1036624
