Stable, high efficiency, wavelength tunable fiber optic parametric oscillator

摘要

An optical apparatus comprising: a source and a loop. The source generates a pump. The resonating cavity of the source includes: a gain medium; and a tunable filter for selecting a wavelength. The loop comprises: an input coupler; a waveguide; and an output coupler. The input coupler receives the pump and a signal and outputs the pump and the signal into the waveguide In the waveguide, energy in the pump is transferred into energy in the signal while a relative center position of the signal is crossing a center position of the pump in a first direction while both are passing through the waveguide and into the output coupler. The output coupler r outputs a first portion of the signal and a second portion of the signal is fed into the input coupler as the signal, completing the loop.

主权项

1. An optical apparatus comprising:
an optical source that generates a pump pulse with a first optical wavelength, wherein a resonating cavity of the optical source includes:
a gain medium; anda wavelength tunable filter for selecting light as the first optical wavelength; and an optical loop comprising:
an input optical coupler comprising:
a first port for receiving the pump pulse;a second port for receiving a signal pulse, wherein the signal pulse has a second optical wavelength different from the first optical wavelength; anda third port for outputting the pump pulse and the signal pulse;an optical waveguide comprising:
a fourth port for receiving the pump pulse and the signal pulse;a fifth port outputting the pump pulse and the signal pulse; andwherein energy in the pump pulse is transferred into energy in the signal pulse while a relative center position of the signal pulse is crossing a center position of the pump pulse in a first direction while both are passing through the waveguide; andan output optical coupler comprising:
a sixth port for receiving the pump pulse and the signal pulse;a seventh port for outputting a first portion of the signal pulse; andan eighth port for outputting a second portion of the signal pulse; andwherein the first portion of the signal pulse from the seventh port of the output coupler is fed into the second port as the signal pulse, completing the optical loop.