• DocumentCode
    295693
  • Title

    Performance of 980 nm pump laser diodes with GaAs/AlAs graded short period superlattice waveguides

  • Author

    Evtikhiev, V.P. ; Kudryashov, I.V. ; Tokranov, V.E. ; Yu, J.S. ; Yang, S.K. ; Pak, G. ; Kim, T.I.

  • Author_Institution
    A.F. Ioffe Physicotech. Inst., Acad. of Sci., St. Petersburg, Russia
  • Volume
    1
  • fYear
    1995
  • fDate
    30-31 Oct 1995
  • Firstpage
    255
  • Abstract
    Short period superlattices (SPSs) allow precise control of epitaxial layers and the material quality is generally superior to the equivalent solid solution. These advantages have been utilized in 980 nm pump laser diodes; N.K. Dutta et al. (1992) replaced the In0.2Ga0.8As active layer with 4 periods of 1 monolayer of InAs and 4 monolayers of GaAs; T. Hayakawa et al. (1993) used 79 periods of 2 monolayers of GaAs and 2.5 monolayers of Al0.45Ga0.55As in the place of GaAs barriers. The superior material quality of SPS should be most advantageous in the waveguide. Lasing photons oscillate along the waveguide before being emitted through the front facet; the loss in this region should be minimized for low threshold and good lasing efficiency. In the paper, we present the performance of 980 nm pump laser diodes with GaAs/AlAs graded SPS waveguides
  • Keywords
    III-V semiconductors; aluminium compounds; gallium arsenide; gradient index optics; laser beams; molecular beam epitaxial growth; optical losses; optical pumping; optical waveguides; ridge waveguides; semiconductor lasers; semiconductor superlattices; waveguide lasers; 980 nm; GaAs-AlAs; GaAs/AlAs; epitaxial layers; front facet; graded short period superlattice waveguides; lasing efficiency; lasing photons; loss; low threshold; material quality; monolayer; performance; pump laser diodes; waveguide laser; Diode lasers; Epitaxial layers; Gallium arsenide; Laser excitation; Optical materials; Optical waveguides; Pump lasers; Solids; Superlattices; Waveguide lasers;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Lasers and Electro-Optics Society Annual Meeting, 1995. 8th Annual Meeting Conference Proceedings, Volume 1., IEEE
  • Conference_Location
    San Francisco, CA
  • Print_ISBN
    0-7803-2450-1
  • Type

    conf

  • DOI
    10.1109/LEOS.1995.484858
  • Filename
    484858