Optical waveguides – Integrated optical circuit
Patent
1992-10-15
1994-01-04
Lee, John D.
Optical waveguides
Integrated optical circuit
385 8, 385 12, 385 10, 359152, 369 4412, G02B 612
Patent
active
052767450
ABSTRACT:
An integrated electro-optic waveguide device has a substrate, an optically transparent lower buffer layer positioned atop the substrate, an optically transparent nonlinear optic (NLO) organic poled polymer waveguide positioned atop the lower buffer layer, and a GaAs laser diode optically coupled to the waveguide. The NLO material has a higher refractive index than the buffer layer. A ridge waveguide section forms an extended resonator cavity for the laser diode and combines a modulation function and an in-cavity quasi-phase matched second harmonic generation function. A grating coupled ridge-to-planar waveguide section combines a beam expansion function, a TE-TM conversion function, and a beam turning function. A planar surface prism electrode section provides electro-optic waveguide beam deflection. A dual linear grating coupler section performs the output/input coupling. Beam turning is accomplished by a planar waveguide mirror section. An electro-optic ridge waveguide Mach-Zehnder interferometer wavefront sensor section generates TES and FES signals.
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Eastman Kodak Company
Heartney Phan T.
Lee John D.
Owens Raymond L.
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