Referenced Items are not available for this document.
For the first time, a digital-alloy active region (DAAR) consisting of submonolayer superlattices was used in a 1.55-/spl mu/m vertical-cavity surface-emitting laser. The device showed continuous-wave operation with a room-temperature threshold current (I/sub th/) of 1.2 mA, maximum output power (P/sub max/) of 0.26 mW, and a differential quantum efficiency (/spl eta//sub d/) of 21%. These results indicate that the DAAR is at least as efficient as the analog-alloy active region and provides much better control of alloy composition and strain.
Published in:
Photonics Technology Letters, IEEE
(Volume:15
,
Issue:
7
)
Date of Publication: July 2003
- Page(s):
- 891 - 893
- ISSN :
- 1041-1135
- INSPEC Accession Number:
- 7683508
- Digital Object Identifier :
- 10.1109/LPT.2003.813405
- Product Type:
- Journals & Magazines
- Date of Current Version :
- 25 June 2003
- Issue Date :
- July 2003
- Sponsored by :
- IEEE Photonics Society
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