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23 February 1987 A Modified 1x2 Directional Coupler Modulator With Low Drive Voltage
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Proceedings Volume 0716, High Frequency Optical Communications; (1987)
Event: Cambridge Symposium-Fiber/LASE '86, 1986, Cambridge, MA, United States
A novel modified electro-optic Ti:LiNb01 lx2 directional coupler modulator is demonstrated. The modulator consists of a single-mode input waveguide which branches into a pair of optically coupled single-mode waveguides. Due to the symmetry of the modulator configuration, the half-power 3-dB operating point is automatically achieved without the need for a DC bias voltage. It is compatible with an efficient push-pull traveling wave type electrode structure for ultra high speed operation, utilizing the largest r33 electro-optic coefficient. In addition, the device can be used as a lx2 optical switch, requiring a lower drive voltage than a conventional directional coupler switch.
© (1987) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Suwat Thaniyavarn "A Modified 1x2 Directional Coupler Modulator With Low Drive Voltage", Proc. SPIE 0716, High Frequency Optical Communications, (23 February 1987);

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