Method and apparatus for measuring bandwidth of an optical spectrum output of a very small wavelength very narrow bandwidth high power laser

A spectrometer for measuring an unknown bandwidth of a spectrum of light, comprising:

• an optical bandwidth measuring unit providing as an output a measured parameter, which is indicative of a parameter of the unknown bandwidth of the spectrum being measured;
• a reported parameter computing unit computing a reported parameter of the unknown bandwidth of the spectrum being measured according to the formula:
• Reported Parameter(“RP”)=A*(Measured Parameter(“MP”))+C,
• wherein the RP and MP are a different type of parameter and the values of A and C are determined based upon. calibration of the optical bandwidth measuring unit MP response for light of known valued of RP.

A laser control system, comprising:

• spectrometer means for measuring an unknown bandwidth of a spectrum of light emitted from the laser, comprising:
• an optical bandwidth measuring means for providing as an output a measured parameter, which is indicative of a parameter of the unknown bandwidth of the spectrum being measured;
• a reported parameter computing means for computing a reported parameter of the unknown bandwidth of the spectrum being measured according to the formula:
• Reported Parameter(“RP”)=A*(Measured Parameter(“MP”))+C,
• wherein the RP and MP are a different type of parameter and the values of A and C are determined based upon calibration of the optical bandwidth measuring unit MP response for light of known valued of RP.

A spectrometer for measuring an-unknown bandwidth of a spectrum of light, comprising:

• an optical bandwidth measuring means for providing as an output a measured parameter, which is indicative of a parameter of the unknown bandwidth of the spectrum being measured;
• a reported parameter computing means for compute a reported parameter of the unknown bandwidth of the spectrum being measured according to the formula:
• Reported Parameter(“RP”)=A*(Measured Parameter(“MP”))+C,
• wherein the RP and MP are different types or parametes and the values of A and C are determined based upon calibration of the optical bandwidth measuring unit MP response for light of known valued of RP.

A method for controlling a laser, comprising:

• utilizing a spectrometer means for measuring an unknown bandwidth of a spectrum of light emitted from the laser, by:
• providing a measurement of a measured parameter, which is indicative of a parameter of the unknown bandwidth of the spectrum being measured;
• computing a reported parameter of the unknown bandwidth of the spectrum being measured according to the formula:
• Reported Parameter(“RP”)=A*(Measured Parameter(“MP”)+C,
• wherein the RP and MP are a different type of parameter and the values of A and C are determined based upon calibration of the optical bandwidth measuring unit MP response for light of known valued of RP;
• providing an output representative of the RP to a laser system controller;
• utilizing the signal to control an aspect of laser operation.

A method for measuring an unknown bandwidth of a spectrum of light, comprising:

• utilizing an optical bandwidth measuring means to provide as an output a measured parameter, which is indicative of a parameter of the unknown bandwidth of the spectrum being measured;
• computing a reported parameter of the unknown bandwidth of the spectrum being measured according to the formula:
• Reported Parameter(“RP”)=A*(Measured Parameter(“MP”))+C,
• wherein the RP and MP are different types or parametes and the values of A and C are determined based upon calibration of the optical bandwidth measuring unit MP response for light of known valued of RP;
• providing an output representative of the RP to a laser system controller;
• utilizing the signal to control an aspect of laser operation.