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High-performance InGaAsP/InP buried-heterostructure lasers and arrays defined by ion-beam-assisted etching

Journal Article · · Appl. Phys. Lett.; (United States)
DOI:https://doi.org/10.1063/1.99099· OSTI ID:5276284
Ion-beam-assisted etching has been used to fabricate mass-transported InGaAsP/InP buried- heterostructure lasers. These lasers have a novel, deeply etched rectangular mesa that results in reduced current leakage. Both single-stripe lasers and Y-junction-coupled multiple-stripe laser arrays have been demonstrated. The single-stripe lasers have 12 mA cw threshold currents, differential quantum efficiencies of 32%--34% per facet, and smooth single-lobe far-field patterns. The multiple-stripe arrays lase in-phase with strong phase coherence.
Research Organization:
Lincoln Laboratory, Massachusetts Institute of Technology, Lexington, Massachusetts 02173-0073
OSTI ID:
5276284
Journal Information:
Appl. Phys. Lett.; (United States), Journal Name: Appl. Phys. Lett.; (United States) Vol. 52:18; ISSN APPLA
Country of Publication:
United States
Language:
English