21 December 1978 2 Gbps Electro-Optic Modulator For Visible Lasers
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In order to overcome the bandwidth limitations of lumped element electro-optic modulators, a velocity matched traveling wave modulator has been designed, built and is being tested. The modulator, which utilized two lithium tantalate crystals in a 12.5Q transmission line structure, had a switching voltage of 12 volts. Preliminary data taken using a CW krypton laser and a 1 Gbps data source indicates that the driver rather than the modulator is limiting the response of the system. A 2 Gbps data source and a 2 Gpps optical input is being prepared for further testing. When operating at 2 Gbps, the modulator should require 25 watts of operating power in order to achieve full switching.
© (1978) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Amos Chenoweth, Amos Chenoweth, } "2 Gbps Electro-Optic Modulator For Visible Lasers", Proc. SPIE 0150, Laser and Fiber Optics Communications, (21 December 1978); doi: 10.1117/12.956701; https://doi.org/10.1117/12.956701


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