DocumentCode :
77703
Title :
Double Half-Wave-Coupled Rectangular Ring-FP Laser With 
GHz Wavelength Tuning
Author :
Lin Wu ; Xiaolu Liao ; Zhipeng Hu ; Jian-Jun He
Author_Institution :
Dept. of Opt. Eng., Zhejiang Univ., Hangzhou, China
Volume :
27
Issue :
10
fYear :
2015
fDate :
May15, 15 2015
Firstpage :
1076
Lastpage :
1079
Abstract :
A widely wavelength tunable semiconductor laser based on two cascaded half-wave-coupled rectangular ring resonators is demonstrated. Vernier effect between two rectangular rings with perimeter of 281 and 305 μm is employed to enlarge the tuning range. Simple fabrication process is used with all active waveguides. No epitaxial regrowth, grating, or high-resolution lithography is needed. By adjusting the injection currents applied to the cascaded rectangular rings synchronously, wavelength tuning of 35 channels with 100 GHz spacing is achieved with side mode suppression ratio up to 40.5 dB.
Keywords :
laser beams; laser tuning; optical fabrication; ring lasers; semiconductor lasers; waveguide lasers; Vernier effect; active waveguides; cascaded half-wave-coupled rectangular ring resonators; double half-wave-coupled rectangular ring-fp laser; fabrication process; frequency 100 GHz; frequency 3500 GHz; injection currents; side mode suppression ratio; size 281 mum; size 305 mum; tuning range; widely wavelength tunable semiconductor laser; Couplers; Laser modes; Laser tuning; Optical ring resonators; Ring lasers; Half-wave coupler; rectangular ring resonator; tunable semiconductor laser;
fLanguage :
English
Journal_Title :
Photonics Technology Letters, IEEE
Publisher :
ieee
ISSN :
1041-1135
Type :
jour
DOI :
10.1109/LPT.2015.2406709
Filename :
7047748
Link To Document :
