Properties of broad area grating coupled surface emitters

David F. Welch*, Ross Parke, William Streifer, Amos Hardy, Donald R. Scifres

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Results for grating-coupled surface emitters that emit over 300 mW from a 50-μm-wide gain region are discussed. The diode structure consists of a gain region 1 mm in length with a single-quantum-well active region. The light output indicates a threshold current of 600 mA and a maximum output power of 200 mW. Comparable devices emitted over 300 mW. The spectral output of the broad-area surface emitter indicates a series of modes within a 0.3-nm spectral range. Similar diode structures in which the optical mode in the gain medium is guided by a lateral real-refractive-index step emit in a single mode spectrally. The far-field radiation pattern of the surface emitter is a single lobe in the direction perpendicular to the grating teeth. The FWHM is 0.2°. The losses in the grating region are associated with the absorption loss in the unpumped quantum well.

Original languageEnglish
Title of host publicationCONFERENCE ON LASERS AND ELECTRO-0PTICS
Editors Anon
PublisherPubl by IEEE
Pages402-403
Number of pages2
ISBN (Print)1557520860
StatePublished - 1989
Externally publishedYes
EventSummaries of Papers Presented at the Conference on Lasers and Electro-Optics - Baltimore, MD, USA
Duration: 24 Apr 198928 Apr 1989

Publication series

NameCONFERENCE ON LASERS AND ELECTRO-0PTICS

Conference

ConferenceSummaries of Papers Presented at the Conference on Lasers and Electro-Optics
CityBaltimore, MD, USA
Period24/04/8928/04/89

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