PHASE-BASED WAVELENGTH MEASUREMENT APPARATUS
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Oct 8, 2002
Grant Date -
Nov 21, 2002
app pub date -
Apr 30, 2002
filing date -
Apr 30, 2001
priority date (Note) -
Granted
status (Latency Note)
Importance
Abstract
A laser wavelength meter determines the unknown wavelength of a laser by measuring the phase difference between two orthogonally polarized beams derived from the laser. The orthogonally polarized beams propagate along two optical paths of different length as defined, for example, by a polarizing beam splitter or a stepped reflector with a defined step height. An in situ reference laser of known wavelength allows calculation and monitoring of the path difference between the two optical paths.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
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