Title :
Low thermal resistance 780nm GaInPAs/GaInP 40ch VCSEL array for laser printers
Author :
Harasaka, Kazuhiro ; Motomura, Hiroshi ; Hara, Kei ; Ito, Akihiro ; Jikutani, Naoto ; Sato, Shunichi
Author_Institution :
Tohoku R&D Center, RICOH Co., Ltd., Natori, Japan
fDate :
Oct. 30 2011-Nov. 2 2011
Abstract :
We have developed a 780nm 40ch VCSEL array for laser printers. Low thermal resistance has been achieved by improving the layer construction, with the result that laser power changing due to self-heating and thermal interference in the array have been stabilized. Moreover, single-mode high power and stable polarization have been achieved by GaInPAs strained quantum wells grown on 15° off GaAs substrate and anisotropically-shaped transverse mode filter on the output surface.
Keywords :
III-V semiconductors; gallium compounds; indium compounds; laser cavity resonators; laser printers; light polarisation; optical filters; phosphorus compounds; semiconductor quantum wells; surface emitting lasers; thermal resistance; GaInPAs-GaInP-Al0.3Ga0.7As-AlAs-GaAs; VCSEL array; anisotropically-shaped transverse mode filter; laser power; laser printers; layer construction; low thermal resistance; self heating; single-mode high power; stable polarization; strained quantum wells; thermal interference; wavelength 780 nm;
Conference_Titel :
Microopics Conference (MOC), 2011 17th
Conference_Location :
Sendai
Print_ISBN :
978-1-4577-1344-6
