Abstract
Abstract : A new scheme for a LD-3 nonlinear optical (NLO) polymer opto-electronic (OE) modulator/switch is presented in this Phase I that have an order of magnitude shorter interaction length than the conventional NLO polymer OE devices operating at TTL voltage levels. It utilized LD-3 NLO polymer as core layer and 3,4-Polyethylene-dioxythiophene (PEDOT) conductive polymer as cladding layers to realize an effective 1 micrometer separation between the electrodes. The polymer precessing and spin coating parameters were determined and optimized to produce triple stack film (cladding/core/cladding) to meet the design requirements of the Mach-Zehnder (MZ) switch. It has been demonstrated theoretically that the construction of MZ switch is possible using LD-3 NLO polymer as core and conducting polymer as cladding layers. The electro-optical coefficient of LD-3 waveguide was measured to be 5 pm/V at 790 nm when film was electrode-poled at 80 V/micrometers. The higher value of electrooptical coefficient can be achieved by using higher poling voltage in the presence of conductive cladding layers.
Published Version
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