Title :
Low-threshold membrane BH-DFB laser arrays with precisely controlled wavelength over a wide range
Author :
Okamoto, Takeshi ; Yamazaki, Tatsuya ; Sakamoto, Shinichi ; Tamura, Shigeo ; Arai, Shigehisa
Author_Institution :
Res. Center for Quantum Effect Electron., Tokyo Inst. of Technol., Japan
fDate :
5/1/2004 12:00:00 AM
Abstract :
We report on the low-threshold operation of membrane buried heterostructure distributed feedback laser arrays. 45 devices were fabricated on a wafer covering a wide wavelength range of 75 nm. The lowest threshold pump power as low as 0.64 mW along with the submode suppression-ratio of over 30 dB at two times the threshold were successfully obtained at room-temperature continuous-wave condition.
Keywords :
distributed feedback lasers; laser modes; membranes; optical communication equipment; optical fabrication; optical pumping; quantum well lasers; semiconductor laser arrays; semiconductor quantum wells; 20 degC; BH-DFB laser arrays; continuous wave condition; distributed feedback laser arrays; low-threshold operation; membrane buried heterostructure; optical communication; optical pumping; precisely controlled wavelength; quantum-well lasers; room-temperature; semiconductor laser arrays; submode suppression-ratio; Biomembranes; Distributed feedback devices; Laser feedback; Optical arrays; Optical control; Optical pumping; Pump lasers; Semiconductor laser arrays; Surface emitting lasers; Vertical cavity surface emitting lasers;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2004.825997
