13 February 2008 Optical modulation techniques for analog signal processing and CMOS compatible electro-optic modulation
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Integrating electronic and photonic functions onto a single silicon-based chip using techniques compatible with mass-production CMOS electronics will enable new design paradigms for existing system architectures and open new opportunities for electro-optic applications with the potential to dramatically change the management, cost, footprint, weight, and power consumption of today's communication systems. While broadband analog system applications represent a smaller volume market than that for digital data transmission, there are significant deployments of analog electro-optic systems for commercial and military applications. Broadband linear modulation is a critical building block in optical analog signal processing and also could have significant applications in digital communication systems. Recently, broadband electro-optic modulators on a silicon platform have been demonstrated based on the plasma dispersion effect. The use of the plasma dispersion effect within a CMOS compatible waveguide creates new challenges and opportunities for analog signal processing since the index and propagation loss change within the waveguide during modulation. We will review the current status of silicon-based electrooptic modulators and also linearization techniques for optical modulation.
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Douglas M. Gill, Mahmoud Rasras, Kun-Yii Tu, Young-Kai Chen, Alice E. White, Sanjay S. Patel, Daniel Carothers, Andrew Pomerene, Robert Kamocsai, James Beattie, Anthony Kopa, Alyssa Apsel, Mark Beals, Jurgen Mitchel, Jifeng Liu, Lionel C. Kimerling, "Optical modulation techniques for analog signal processing and CMOS compatible electro-optic modulation", Proc. SPIE 6898, Silicon Photonics III, 689803 (13 February 2008); doi: 10.1117/12.777113; https://doi.org/10.1117/12.777113

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