1. Reconfigurable Linear Optical FM Discriminator
- Author
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Kun-Yii Tu, Flavio Pardo, Evans Yifan Chen, Mahmoud Rasras, Ming C. Wu, Lawrence L. Buhl, Bob Keller, L.T. Gomez, Robert C. Peach, F.P. Klemens, Richard DeSalvo, Mark Cappuzzo, Charles Middleton, Scott L. Meredith, Young-Kai Chen, C. Bolle, John Michael Wyrwas, and Mark Earnshaw
- Subjects
Physics ,Discriminator ,business.industry ,Bandwidth (signal processing) ,Optical performance monitoring ,Optical modulation amplitude ,Atomic and Molecular Physics, and Optics ,Electronic, Optical and Magnetic Materials ,Amplitude modulation ,Optics ,Band-pass filter ,Electronic engineering ,Electrical and Electronic Engineering ,Optical filter ,business ,Frequency modulation - Abstract
We present a reconfigurable optical discriminator filter for frequency modulated microwave-photonics link applications. The filter is based on a simplified ring-assisted Mach-Zehnder interferometer configuration. It enables conversion of a highly linear frequency to amplitude modulation. Operations in a fixed bandwidth (BW) of 30 GHz and a tunable bandwidth from 10 to 30 GHz are achieved using third- and fifth-order filters. A balanced frequency discrimination architecture with electronically reconfigurable transfer characteristics is demonstrated. We measured a output-third order intercept point (OIP3) linearity improvement over that of a dual-output Mach-Zehnder.
- Published
- 2012