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Title: Temperature-insensitive vertical-cavity surface-emitting lasers and method for fabrication thereof

A temperature-insensitive vertical-cavity surface-emitting laser (VCSEL) and method for fabrication thereof are disclosed. The temperature-insensitive VCSEL comprises a quantum-well active region within a resonant cavity, the active region having a gain spectrum with a high-order subband (n {>=} 2) contribution thereto for broadening and flattening the gain spectrum, thereby substantially reducing any variation in operating characteristics of the VCSEL over a temperature range of interest. The method for forming the temperature-insensitive VCSEL comprises the steps of providing a substrate and forming a plurality of layers thereon for providing first and second distributed Bragg reflector (DBR) mirror stacks with an active region sandwiched therebetween, the active region including at least one quantum-well layer providing a gain spectrum having a high-order subband (n {>=} 2) gain contribution, and the DBR mirror stacks having predetermined layer compositions and thicknesses for providing a cavity resonance within a predetermined wavelength range substantially overlapping the gain spectrum. 12 figs.
Authors:
; ;
Publication Date:
OSTI Identifier:
570433
Report Number(s):
US 5,712,865/A/
PAN: US patent application 8-535,597
DOE Contract Number:
AC04-94AL85000
Resource Type:
Patent
Resource Relation:
Other Information: PBD: 27 Jan 1998
Research Org:
Sandia Corporation
Sponsoring Org:
USDOE, Washington, DC (United States)
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING NOT INCLUDED IN OTHER CATEGORIES; SEMICONDUCTOR LASERS; LASER CAVITIES; FABRICATION; BRAGG REFLECTION; LASER MIRRORS