Patent ID: 7102755
Filing Date: 2006-09-05
Classification: G01J

Abstract:
1. A method for determining power of a modulated signal, comprising: applying the modulated signal to a wavelength meter to provide a frequency transformed interferogram representing the modulated signal by a plurality of consecutive frequency bins, each frequency bin in the plurality of frequency bins having a corresponding bin value; designating a bin range within the frequency transformed interferogram, wherein designating the bin range within the frequency transformed interferogram includes mapping a series of signal characteristics to a corresponding series of bin spans and enabling a selection of one signal characteristic from the series of signal characteristics, wherein in response to selection of the one signal characteristic from the series of signal characteristics establishing the designated bin range as having a bin span that corresponds to the selected one signal characteristic defined by the mapping of the series of signal characteristics to the corresponding series of bin spans, and being centered about a center bin within the frequency transformed interferogram; and summing a series of bin values within the frequency transformed interferogram over the designated bin range to provide a sum that represents the power of the modulated signal to a predetermined accuracy.