EP 1247316 A4 20060104 - CONTROL OF CURRENT SPREADING IN SEMICONDUCTOR LASER DIODES
Title (en)
CONTROL OF CURRENT SPREADING IN SEMICONDUCTOR LASER DIODES
Title (de)
KONTROLLE DER STROMVERTEILUNG IN HALBLEITERLASERDIODEN
Title (fr)
COMMANDE DE LA REPARTITION DU COURANT DANS DES DIODES LASERS A SEMI-CONDUCTEURS
Publication
Application
Priority
- US 0031048 W 20001110
- US 16486499 P 19991112
Abstract (en)
[origin: WO0135506A1] A semiconductor laser diode (1) and method are described, wherein the path of the current through the device between the positive (12) and negative (14), conductors is controlled. Lateral spread of the gain current in the active region is prevented by implanting protons in areas of the active layer (10) flanking a desired gain region (24). The implanted regions (26) become less conductive, and prevent lateral spread of the gain current. The position of the implanted regions (26) can be selected so that the gain current only crosses a portion of the active layer (10) that supports desired lateral modes of the laser light.
IPC 1-7
IPC 8 full level
H01S 5/20 (2006.01); H01S 5/22 (2006.01); H01S 5/223 (2006.01)
CPC (source: EP)
H01S 5/20 (2013.01); H01S 5/2063 (2013.01); H01S 5/22 (2013.01)
Citation (search report)
- [X] US 5497391 A 19960305 - PAOLI THOMAS L [US]
- [X] EP 0475330 A2 19920318 - HUGHES AIRCRAFT CO [US]
- [X] EP 0905836 A2 19990331 - XEROX CORP [US]
- [XA] US 5637511 A 19970610 - KURIHARA KAORI [JP]
- [A] US 5804461 A 19980908 - BEYEA DANA M [US], et al
- [A] US 5219785 A 19930615 - WELCH DAVID F [US], et al
- [X] PATENT ABSTRACTS OF JAPAN vol. 013, no. 378 (E - 809) 22 August 1989 (1989-08-22)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
WO 0135506 A1 20010517; WO 0135506 A9 20020523; AU 1762601 A 20010606; CA 2388858 A1 20010517; EP 1247316 A2 20021009; EP 1247316 A4 20060104; JP 2003515250 A 20030422
DOCDB simple family (application)
US 0031048 W 20001110; AU 1762601 A 20001110; CA 2388858 A 20001110; EP 00980351 A 20001110; JP 2001537143 A 20001110