Paper
28 November 2011 Low-voltage, high-extinction ratio carrier-depletion Mach-Zehnder silicon optical modulator
Jianfeng Ding, Hongtao Chen, Ruiqiang Ji, Lin Yang, Yonghui Tian, Lei Zhang, Weiwei Zhu, Yangyang Lu, Rui Min, Ping Zhou
Author Affiliations +
Proceedings Volume 8308, Optoelectronic Materials and Devices VI; 83081P (2011) https://doi.org/10.1117/12.917997
Event: SPIE/OSA/IEEE Asia Communications and Photonics, 2011, Shanghai, China
Abstract
As a result of the low modulation efficiency of carrier-depletion Mach-Zehnder silicon optical modulator, it always needs a high voltage around 6 V, which is very difficult to supply in an integrated high-speed CMOS chip. We demonstrate a carrier-depletion Mach-Zehnder silicon optical modulator which works at a low voltage. Its coplanar waveguide electrode is carefully designed to make sure the electrical wave loss along the device is low. The device operates well at a data rate of 12.5 Gb/s, whose phase-shifter length is 2 mm. Voltages with the swinging amplitudes being 1 V and 2 V are applied to the device with the reverse bias voltages of 0.5 V and 0.8 V. The extinction ratios are 7.67 and 12.79 dB respectively.
© (2011) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Jianfeng Ding, Hongtao Chen, Ruiqiang Ji, Lin Yang, Yonghui Tian, Lei Zhang, Weiwei Zhu, Yangyang Lu, Rui Min, and Ping Zhou "Low-voltage, high-extinction ratio carrier-depletion Mach-Zehnder silicon optical modulator", Proc. SPIE 8308, Optoelectronic Materials and Devices VI, 83081P (28 November 2011); https://doi.org/10.1117/12.917997
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KEYWORDS
Silicon

Optical modulators

Electrodes

Modulation

Resistors

Waveguides

Data transmission

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