Abstract
When two counter-propagating guided modes interact in a nonlinear waveguide, sum-frequency (SF) light is radiated from the waveguide surface (1). Recently, a multilayer AlxGa1–xAswaveguide structure has been developed which has a SF generation efficiency several orders of magnitude larger than conventional homogeneous waveguides (2). As as a result, there is much interest in the application of SF generation in waveguides for various optoelectronic devices including spectrometers (3), correlators (4), and coherent visible light sources (5). In this paper, we demonstrate an optical phase and frequency detector based on SF mixing in a multilayer guide. The waveguide shown in Fig. 1 is pumped by two counter-propogating TE modes, , at the signal frequency ws, and two counter-propogating TM modes, at the reference frequency wo.
© 1992 Optical Society of America
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