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The potential of silicon-based electro-optic modulators for enabling high performance radio-over-fiber applications is demonstrated. Two different applications taking advantage of the linear and nonlinear regime of silicon modulators are investigated. A ring-assisted Mach-Zehnder modulator (MZM) is firstly investigated for RF analog transmission. QPSK and 16-QAM electrical signals are modulated on...
We demonstrate the use of slow light to reduce the drive voltage and shrink the footprint of carrier depletion-based silicon modulators. Hence, low drive voltage 10 Gb/s modulation and high contrast 40Gb/s modulation is achieved.
The linearity properties of ring-assisted MZI (RAMZI) electro-optic silicon modulators are investigated. When quadrature biased the RAMZI silicon modulator with Vbias,DC=1 V and applied a 1 GHz RF tone frequency, it is obtained a Spurious-Free Dynamic Range (SFDR) of 71.65 dB·Hz2/3, and an input intercept point IIP3=67 dBm. Measurements on QPSK and 16-QAM electrical modulated signals on a 1 GHz carrier...
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