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

fYear

2002

fDate

17-22 Mar 2002

Firstpage

650

Lastpage

651

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Optical Fiber Communication Conference and Exhibit, 2002. OFC 2002

Print_ISBN

1-55752-701-6

Type

conf

DOI

10.1109/OFC.2002.1036624

Filename

1036624