Traveling wave electro-optic phase modulator using cross-linked nonlinear optical polymer
- 22 August 1994
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 65 (8) , 929-931
- https://doi.org/10.1063/1.112152
Abstract
We report the fabrication and characterization of a high frequency traveling wave electro-optic phase modulator made from thermally cross-linked polyurethane-Disperse Red 19 polymers. The device has been fabricated using a three layer structure with an integrated 50 Ω microstrip line circuit. The straight channel optical waveguides were defined laterally by standard photolithography and oxygen reactive ion etching. The measured half-wave voltage was in good agreement with that extrapolated from the second harmonic generation measurements. Optical modulation was observed directly on a spectrum analyzer up to 18 GHz. Long-term evaluation over an extensive length of time found no observable loss of performance.Keywords
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