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We present our work on frequency and phase modulated microwave photonic links which achieve linear demodulation using planar lightwave circuits (PLC) optical filtering and balanced detection, showing improvement in spurious free dynamic-range and signal gain.
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-...
A phase modulated (PM) microwave photonic link (MPL) with linearity improvement is presented. The link demodulates the PM using a phase discriminator based on a dynamically tunable, integrated, sixth-order optical lattice filter in planar lightwave circuit (PLC) technology. The linearity of the demodulation process is optimized by using electrical spectrum monitoring and a feedback algorithm to automatically...
To support the need to distribute analog signals from microwave antennas dispersed throughout military aircraft, much research has been devoted to developing microwave photonic links (MPLs) with very high linearity and low noise figures. Frequency-modulated (FM) photonic links are a promising technology to provide high dynamic-range signal transmission for these airborne antenna remoting systems....
We propose a microwave photonic link in which maximally linear FIR optical filters discriminate frequency modulation. Using a tenth-order filter, one can achieve a 127 dBm/Hz2/3 SFDR with 1 mW of received optical power.
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