Semiconductor laser device
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 21, 1989
Grant Date -
N/A
app pub date -
Sep 9, 1986
filing date -
Sep 11, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A semiconductor laser device comprising a multi-layered semiconductor crystal containing an active region for laser oscillation, wherein the extended portions of said active region which are adjacent to both sides of one facet having the width of a selected value of said device constitute light-absorbing regions by which light in a high-order transverse mode is absorbed to a greater extent than that in a fundamental transverse mode, thereby achieving laser oscillation in a stable fundamental transverse mode up to a high output power.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully