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Fiber Optic Microwave Subcarrier Transmission Links Using Laser Diodes as Receiving Mixer
Hiroyo OGAWA Hideki KAMITSUNA David POLIFKO
IEICE TRANSACTIONS on Electronics
Publication Date: 1993/02/25
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Issue on Optical/Microwave Interaction Devices, Circuits and Systems)
Category: Optical-Microwave Mixers
microwave subcarrier transmission, laser diode nonlinearity, fiber optic links,
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This paper proposes the laser diode receiving mixer which utilizes the laser diode nonlinearity. The laser diode receiving mixer can make the bidirectional fiber optic link simple and cost-effective. These laser diodes are applied to configure the LD-LD MIX link which consists of two laser diodes, two local oscillators, two microwave switches and one fiber cable. The LD-LD MIX link configuration is extended to introduce novel two fiber optic links, i.e. the local suppression link and the image cancellation link. These links utilize the combination of microwave circuits and optical devices. These configurations are experimentally investigated at microwave frequencies and the QPSK signal transmission is successfully demonstrated.