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Wireless data transmission with binary phase-shift keying modulation encoded on a 92 GHz carrier is achieved using photonic components. A high-speed photodiode is used to convert the doubly-modulated optical signal to a modulated millimeter-wave carrier. A W-band Mach-Zehnder interferometer with a one-bit time delay is used to directly detect the differential phase-shift keyed millimeter-wave wireless signal without the use of a local oscillator. Field tests with antennas separated by 890 m demonstrate the ability to discriminate two phase states for differential binary phase shift keying (DBPSK) and four phase states for differential quadrature phase shift keying (DQPSK) at data rates of 2.3 Gb/s and 4.6 Gb/s, respectively.Index Terms-Differential phase shift keying, integrated optics, microwave photonics, millimeter-wave communication, quadrature phase shift keying.

Microwave photonic components and systems are of significant interest to radar and communications systems used on military platforms. This paper highlights recent experimental results and system architectures aimed at moving microwave photonic component developments to system demonstrations and transitions to deployed military systems.

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