System and method for controlling the light source of a cavity ringdown spectrometer
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
Nov 17, 2005
app pub date -
May 13, 2004
filing date -
May 13, 2004
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A system and method for controlling the light source of a cavity ring-down spectrometer (CRDS). The system comprises a resonant optical cavity having at least two high reflectivity mirrors; a source for providing a continuous wave optical signal into the optical cavity, the source comprising an electrically pumped semiconductor gain medium; and a SOA interposed between the optical signal source and the optical cavity. The SOA receives the optical signal and transmits it to the resonant optical cavity. The system also includes a first detector for monitoring the intensity of radiation emitted from said cavity and generating a first detection signal based thereon; and at least a first controller for deactivating the optical signal based on a comparison of the first detection signal and a predetermined threshold and for thereafter reactivating the optical signal after a delay period in excess of the ring-down time of the optical cavity, the deactivating and reactivating being achieved by respectively turning off and then turning on electrical current to the SOA.
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