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US 7,042,579 B2Granted
Laser monitoring using both the reflected and transmitted interference patterns of an etalon
AssigneeAgilent Technologies, Inc.
InventorMichael B. North Morris
Life of this patent
Estimating the term…
Abstract
A laser signal is monitored. The laser signal is forwarded to an etalon. Light transmitted through the etalon is detected. Light reflected from the etalon is detected. A ratio is calculated from the detected light transmitted through the etalon and the light reflected from the etalon.
Claims20
A method for monitoring a laser signal comprising:
- (a) forwarding the laser signal to an etalon;
- (b) detecting light transmitted through the etalon to produce a transmitted signal;
- (c) detecting light reflected from the etalon to produce a reflected signal;
- and,
- (d) sharpening peaks of the transmitted signal by dividing the transmitted signal by the reflected signal.
2 more elements
A system that monitors a laser signal, the system comprising:
- an etalon that receives the laser signal;
- a first detector that detects light transmitted through the etalon to produce a transmitted signal;
- a second detector that detects light reflected from the etalon to produce a reflected signal;
- and,
- a monitor that sharpens peaks of the transmitted signal by dividing the transmitted signal by the reflected signal.
2 more elements
A system that monitors a laser signal, the system comprising:
- a measurement means for receiving the laser signal;
- a first detection means for detecting light transmitted through the measurement means to produce a transmitted signal;
- a second detector means for detecting light reflected from the measurement means to produce a reflected signal;
- and,
- a device means for sharpening peaks of the transmitted signal by dividing the transmitted signal by the reflected signal.
2 more elements
A method for monitoring a laser signal comprising:
- (a) forwarding the laser signal to an etalon;
- (b) detecting light transmitted through the etalon to produce a transmitted signal;
- (c) detecting light reflected from the etalon to produce a reflected signal;
- and,
- (d) generating a sinusoidal signal for use in interpolation, the sinusoidal signal being generated by dividing the reflected signal by the transmitted signal.
2 more elements
A system that monitors a laser signal, the system comprising:
- an etalon that receives the laser signal;
- a first detector that detects light transmitted through the etalon to produce a transmitted signal;
- a second detector that detects light reflected from the etalon to produce a reflected signal;
- and,
- a monitor that generates a sinusoidal signal for use in interpolation, the sinusoidal signal being generated by dividing the reflected signal by the transmitted signal.
2 more elements
Dependencies are inferred from the claim text.