Abstract
A polymer/silica hybrid Mach–Zehnder interferometer thermo-optic switch is experimentally demonstrated. The switch exhibits low power consumption of 7.8 mW, high extinction ratio of 32.6 dB, and short rise and fall times of 107 and 71 μs, respectively. The output spectrum is 50 nm (1,520–1,570 nm), with the extinction ratio level of over 18 dB. The driving-noise tolerance of this device was experimentally investigated by imposing a generated tunable noise on the pure driving signal. The device reveals a voltage-noise budget as high as 1.1 Vpp relative to a driving voltage of 3.0 Vpp for obtaining higher than a 10-dB extinction ratio.
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