A HIGH-STABILITY FIBER AMPLIFIER SOURCE FOR THE FIBER OPTIC GYROSCOPE

We demonstrate an erbium-doped fiber amplifier (EDFA) source for the f iber gyroscope with an overall mean wavelength stability of four parts per million. This source, which amplifies the gyroscope signal before detection, is shown to be more stable than a similar single-pass sour ce in a standard configuration, The effects of varying the fiber tempe rature, pump power, pump wavelength, gyroscope feedback power and sign al polarization state on the output mean wavelength are individually e xplored, Experimental results are in excellent agreement with simulati ons.