Architecture for high-extinction electro-optic modulation in pulsed fiber lasers

Abstract

A spectral combiner (310) is configured to spectrally combine a pulsed signal (312) at a first wavelength and a continuous wave (CW) signal (314) at a second wavelength. A time gate (330) has a signal input configured to receive a first multiplexed input signal (316) from the first WDM, a radio frequency (RF) input configured to receive a RF control signal (332), a bias input configured to receive a direct current (DC) bias signal (334), and an output. A spectral decomposer (340) is configured to demultiplex a second multiplexed output signal (336) from the time gate's output into a first demultiplexed signal (342) at the first wavelength and a second demultiplexed signal (344) at the second wavelength. The DC bias signal is based on the second demultiplexed signal.

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