Method and apparatus for measuring bandwidth of an optical...

Details Method and apparatus for measuring bandwidth of an optical... Method and apparatus for measuring bandwidth of an optical...

2007-08-14

2007-08-14

Lee, Hwa (Andrew) (Department: 2886)

Optics: measuring and testing

By light interference

Spectroscopy

C356S519000, C356S451000

Reexamination Certificate

active

10609223

ABSTRACT:
An apparatus and method for controlling a laser system is disclosed which may comprise a spectrometer adapted to measure an unknown bandwidth of a spectrum of light emitted from the laser, which may comprise an optical bandwidth measuring unit adapted to provide 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 adapted to 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 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.

REFERENCES:
patent: 6317448 (2001-11-01), Das et al.
patent: 6952267 (2005-10-01), Rarac

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