Title :
Highly linear-polarized external cavity lasers hybrid integrated on planar lightwave circuit platform
Author :
Kim, Ryun Kyung ; Lim, Jong Hoon ; Song, Jeong Hwan ; Lee, Kyung Shik
Author_Institution :
Sch. of Inf. & Commun. Eng., SungKyunKwan Univ., Gyeonggi-Do
Abstract :
We propose and demonstrate, for the first time, a highly linear-polarized external cavity laser (ECL) integrated on planar lightwave circuit (PLC) with an in-PLC polarizer designed to improve polarization extinction ratio (PER). The in-PLC polarizer based on a 45deg-tilted grating was simply formed in the laser cavity composed of a Fabry-Peacuterot laser diode and a Bragg grating. The proposed ECL exhibited a PER value as high as 30 dB and single longitudinal mode oscillation with a high sidemode suppression ratio of 50 dB at 1310 nm
Keywords :
Bragg gratings; integrated optics; laser cavity resonators; laser modes; light polarisation; optical design techniques; optical polarisers; semiconductor lasers; 1310 nm; Bragg grating; Fabry-Perot laser diode; PLC polarizer; linear-polarized external cavity lasers; longitudinal mode oscillation; planar lightwave circuit; polarization extinction ratio; sidemode suppression ratio; Bragg gratings; Circuits; Diode lasers; Extinction ratio; Laser modes; Laser stability; Light sources; Optical polarization; Programmable control; Wavelength division multiplexing; External cavity laser (ECL); planar lightwave circuit (PLC); polarization extinction ratio (PER); tilted gratings;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2006.870141
