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Single-mode operation of mushroom structure surface emitting lasers

Journal Article · · IEEE Photonics Technology Letters (Institute of Electrical and Electronics Engineers); (USA)
OSTI ID:5726947
; ;  [1]; ;  [2]
  1. Lockheed Palo Alto Research Lab., Palo Alto, CA (US)
  2. Electronics Research Lab., Univ. of California, Berkeley, CA (US)
Mushroom structure vertical cavity surface emitting lasers with a 0.6 {mu}m GaAs active layer sandwiched by two Al{sub 0.6{sup {minus}}}Ga{sub 0.4}As-Al{sub 0.08}Ga{sub 0.92}As multilayers as top and bottom mirrors exhibit 15 mA pulsed threshold current at 880 nm. Single longitudinal and single transverse mode operation was achieved on lasers with a 5 {mu}m diameter active region at current levels near 2 {times} I{sub th}. The light output above threshold current was linearly polarized with a polarization ratio of 25:1.
OSTI ID:
5726947
Journal Information:
IEEE Photonics Technology Letters (Institute of Electrical and Electronics Engineers); (USA), Journal Name: IEEE Photonics Technology Letters (Institute of Electrical and Electronics Engineers); (USA) Vol. 3:1; ISSN IPTLE; ISSN 1041-1135
Country of Publication:
United States
Language:
English