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Fiber-wireless transmission in the terahertz-wave band as well as in the millimeter-wave band is the key for a seamless integration of radio and optical networks in a physical layer. Advanced optical fiber communication technology enables a high precision direct waveform transfer between optical and radio domains. For realization of a seamless conversion, an optical-terahertz converter is configured...
This paper presents the simultaneous transmission of millimeter-wave and terahertz-wave radio signals over an optical fiber and air by a single optical frequency comb source with several types of receiver configurations.
Digital coherent detection and radio-over-fiber technologies allow the realization of direct seamless conversion between optical and radio networks. We propose a photonic dig- ital transmission with analogue signal synthesis technique to provide high-speed simultaneous transmissions.
We demonstrate W-band (75–110 GHz) RoF radio signal transmission with two free-running lasers using an optical heterodyne technique. The combination of a laser located at a base station for the optical local oscillator and a data-modulated optical signal from a central office provides a W-band radio signal. The carrier frequency offset fluctuation within 6 MHz can be mitigated by digital signal processing...
We analyze a carrier frequency fluctuation for RoF transmission with two free-running lasers. Obtained fluctuation within 6 MHz can be mitigated by digital signal processing as a same manner of digital coherent detection.
40-Gb/s W-band 16-QAM radio-over-fiber signal is optically synthesized using dual-polarization QPSK modulator. Its wireless transmission within FEC limit is demonstrated with optical self-heterodyne detection and digital signal processing.
We experimentally demonstrate RZ-BPSK modulation format conversion based on fiber nonlinearity. To suppress the effects of walk-off and parametric gain, we design the parameters of HNLF, probe and control pulses. We investigate the timing and dispersion tolerance at the bit rate of 10.7 Gb/s.
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