An OFDM optical fiber wireless communication method and system based on phase modulator
A wireless communication technology and modulator technology, applied in the field of generation and long-distance signal transmission, to achieve the effects of improving spectrum utilization, suppressing dispersion and polarization mode dispersion, and high spectrum efficiency
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[0028] The present invention will be described in detail below in conjunction with specific experimental examples and accompanying drawings.
[0029] As shown in Figure 1, the components of the long-distance OFDM signal transmission system solution in the optical fiber-wireless communication technology based on the phase modulator are described as follows:
[0030] Single-mode laser 1, used to generate a single longitudinal-mode optical carrier of a specified wavelength;
[0031] The Mach-Zehnder phase modulator 2 is used to perform double-sideband modulation on a single longitudinal mode optical carrier of a specified wavelength;
[0032] Erbium-doped fiber amplifiers 3, 33 are used for power amplification of modulation signals and optical signals transmitted in optical fibers;
[0033] The tunable optical filter 4 is used to filter out the center carrier of the modulated signal at the receiving end of the base station;
[0034] Optical fiber links 5, 55 for transmission of...
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