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1 December 1991 Collinear asymmetrical polymer waveguide modulator
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A novel collinear polymer waveguide modulator was successfully demonstrated. A 36 dB modulation depth was observed with the combination of current induced absorption (3 dB) and phase-matched cross coupling (33 dB). The experimental data shows that the modulator is insensitive to beam polarization. Only 0.1 dB difference was observed between the transverse electric (TE) and transverse magnetic (TM) modes. The theoretical calculation projects a modulation bandwidth of multi gigabit/sec. The polymer microstructure film (PMSF) demonstrated an index tunability from a stepped-index profile to a graded-index (GRIN) profile. GRIN profiles have been produced using the swelling and dehydration process. High- quality waveguides have been generated on an array of optoelectronic substrates, including semiconductors, conductors, insulators, and ceramics. As a result, the demonstrated polymer waveguide modulator can be implemented on any system application where passive and active guided wave devices are employed. Besides the aforementioned universality, the ingenuity of the proposed device provides us with an extremely large dynamic range of the suitable waveguide effective index for waveguide-to-waveguide coupling, which is not achievable through any existing electro-optic devices. Drive power, fabrication cost, and interaction length are expected to be drastically reduced.
© (1991) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Ray T. Chen and Lev S. Sadovnik "Collinear asymmetrical polymer waveguide modulator", Proc. SPIE 1559, Photopolymer Device Physics, Chemistry, and Applications II, (1 December 1991);

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