Diffraction from oxide confinement apertures in vertical-cavity lasers

Journal Article · Sun Aug 01 00:00:00 EDT 1999 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.124502· OSTI ID:357258

Roos, P A; Carlsten, J L ^[1]; Kilper, D C ^[2]; Lear, K L ^[3]

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1. Montana State University, Department of Physics, Bozeman, Montana 59717 (United States)
2. University of North Carolina at Charlotte, Department of Physics, Charlotte, North Carolina 28223 (United States)
3. MicroOptical Devices Inc., 5601C Midway Park Pl. NE, Albuquerque, New Mexico 87109 (United States)

Direct measurement of scattered fields from oxide confinement apertures in vertical-cavity lasers is presented. Diffraction fringes associated with each transverse lasing mode are detected in the far field from devices with varying oxide aperture dimensions and with quantum efficiencies as high as 48{percent}. The diffracted pattern symmetries match the rectangular symmetry of the oxide apertures present in the devices and fringe locations are compared to Fraunhofer theory. The fraction of power diffracted from the lasing mode remains roughly constant as a function of relative pump rate, but is shown to depend on both transverse mode order and oxide aperture size. {copyright} {ital 1999 American Institute of Physics.}

• OSTI ID: 357258
• Journal Information: Applied Physics Letters, Vol. 75, Issue 6; Other Information: PBD: Aug 1999
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING NOT INCLUDED IN OTHER CATEGORIES
INDIUM COMPOUNDS
SEMICONDUCTOR LASERS
DIFFRACTION
APERTURES
ALUMINIUM ARSENIDES
GALLIUM ARSENIDES
OXIDES
LASER CAVITIES