1-W Single-Mode Edge-Emitting DBR Ring Oscillators

K. M. Dzurko, D. F. Welch, D. R. Scifres, A. Hardy

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

The distributed Bragg reflector (DBR) ring oscillator is a new class of single-mode diode laser which emits high power, spatially coherent, single frequency output from a large aperture. An edge emitting Dbr ring oscillators has been fabricated that exhibits single frequency operation to 1 W output from a single facet. From a second device, the far field radiation pattern is a 0.2° diffraction-limited beam which remains stable and stationary up to 460 mW, measured from an uncoated facet. This device produces over 2.5 W of coherent power into four equal beams and has a threshold current density of 177 A/cm2 and a differential quantum efficiency of 63%.

Original languageEnglish
Pages (from-to)369-371
Number of pages3
JournalIEEE Photonics Technology Letters
Volume5
Issue number4
DOIs
StatePublished - Apr 1993
Externally publishedYes

Funding

FundersFunder number
U.S. Air Force
USAF Phillips Laboratory

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