Patent ID: 9667349
Date: 2017-05-30
CPC Classifications: H04B,H04L

Claim:
1. A method of extending the dynamic range in a heterodyne fiber-optic interferometer via an instantaneous carrier measurement, the method comprising: providing a heterodyne fiber-optic interferometer having a demodulator and an associated carrier frequency; determining demodulator excessions; determining a correction factor based on the detected demodulator excession, wherein each of the detecting of the demodulator excessions and the determining of a correction factor is based on information from an instantaneous carrier frequency; and introducing the correction factor to the demodulator to mitigate errors, thereby extending the dynamic range of the heterodyne fiber-optic interferometer, wherein the determining of demodulator excessions comprises: wherein the determining of demodulator excessions comprises: wherein the determining of a correction factor based on the detected demodulator excession comprises establishing initial correction factors from: