Optical wavelength converter in resonant four-wave mixing processes

Abstract

We first demonstrate an experimental observation of electromagnetically induced transparency based four-wave mixing (FWM) in a newly proposed scheme where the intensity of two control fields are spatially-modulated By using such scheme at the optical depth of 19 in cold rubidium atoms the probe-to-signal conversion efficiency is about 43% and the wavelength is also converted from 780 nm to 795 nm In addition the comparison between three kinds of feasible schemes to achieve the wavelength converter are provided theoretically: detuned FWM backward FWM and spatially-modulated FWM Studies of how phase-mismatch effect plays in three different schemes are also presented

Date of Award	2017 Aug 23
Original language	English
Supervisor	Yong-Fan Chen (Supervisor)