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A novel optical high order quadrature amplitude modulation (QAM) transmission system for high-speed short links is described. Dual-polarization (DP) QAM and twin local lights are generated from one light source in the system, and these lightwaves are simultaneously transmitted via standard single mode fiber. The receiver can be constructed simply because it does not require a coherent light source...
Using low power consumption photonic modules containing a low timing jitter optical laser source and an optical gate, we demonstrated potential all-optical sampling of a radio signal carried at >5GHz with a 6 bits resolution.
A new technique that can suppress the coherent interference effect in an optical delay line signal processor is presented. It is based on single tone phase modulation of the optical carrier to translate the phase-induced intensity noise at baseband into high frequencies. This technique enables a narrow-linewidth telecommunication-type laser to be used as an optical source for a delay line signal processor...
This paper presents some key issues in fiber-optic interferometric magnetic field sensors. Practically applicable methods to design and implement fiber-optic Michelson interferometer and transducers are described with experimental verifications. Detection scheme of traditional hardware demodulation is improved, and a new software demodulation method is addressed. Transducers were implemented by using...
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