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OCS (Optical carrier suppression) octamonic optical millimeter wave generation device

A technology of optical millimeter wave and generating device, which is applied in the direction of optical fiber transmission, optical fiber radio, electromagnetic wave transmission system, etc., can solve the problems of increasing system cost, etc., and achieve the effect of low cost, simple and flexible structure, and simple structure

Pending Publication Date: 2017-08-04
HUAQIAO UNIVERSITY
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Problems solved by technology

This undoubtedly increases the cost of the system

Method used

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  • OCS (Optical carrier suppression) octamonic optical millimeter wave generation device
  • OCS (Optical carrier suppression) octamonic optical millimeter wave generation device
  • OCS (Optical carrier suppression) octamonic optical millimeter wave generation device

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Embodiment Construction

[0025] The present invention will be further described below through specific embodiments.

[0026] refer to Figure 1 to Figure 3 , an optical carrier-suppressed eight-fold optical millimeter-wave generating device, including a laser 1, a radio frequency source 2, an amplifier, and a single-arm driven Mach-Zehnder modulator 4 (Single-drive MZM) and the like. The laser 1 is used to generate a continuous optical carrier signal of a specified wavelength and input it to the optical input end of the single-arm driven Mach-Zehnder modulator 4. In this embodiment, it is an ECL laser. The linewidth of the ECL laser is less than 100KHz, and the output power is 14.5dBm, generating an optical carrier with a center wavelength of 1557.5nm.

[0027] The radio frequency source 2 is connected to the input terminal of the amplifier to generate a sine wave signal of a certain frequency. In this embodiment, the radio frequency signal is 9 GHz, and it can also be a higher frequency.

[0028] T...

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Abstract

The invention relates to an OCS (Optical carrier suppression) octamonic optical millimeter wave generation device which comprises a laser, a radio frequency source, an amplifier and a single-arm driven mach-zehnder modulator. The laser is used for generating a continuous optical carrier signal with a designated wavelength and inputting the continuous optical carrier signal to an optical input end of the single-arm driven mach-zehnder modulator; the radio frequency source is connected with an input end of the amplifier to generate a sine wave signal with a certain frequency; an output end of the amplifier is connected with a radio frequency input end of the single-arm driven mach-zehnder modulator to amplify the sine wave signal; and the single-arm driven mach-zehnder modulator modulates the sine wave signal onto an optical carrier and generates an optical millimeter wave of which a frequency is octupled relative to a radio frequency signal. The OCS octamonic optical millimeter wave generation device disclosed by the invention has the characteristics of high reliability and low cost and is simple and flexible in structure.

Description

technical field [0001] The present invention relates to the technical field of a radio-over-fiber (Radio-Over-Fiber, ROF for short) communication system. Specifically, it is an optical carrier-suppressed octave optical millimeter wave generating device. Background technique [0002] At present, radio spectrum resources are very tight, and the spectrum suitable for wireless mobile networks has actually been divided. It is becoming more and more difficult to further develop other wireless new technologies and enhance the spectrum of existing technologies, and our demand for information is constantly increasing. Advanced wireless technologies are difficult to meet people's requirements for bandwidth. The fourth-generation wireless access system will extend to the millimeter wave band. Optical fiber-wireless (Radio-Over-Fiber, ROF for short) communication system will become the most promising technology for solving broadband wireless access. The ROF system makes full use of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B10/2575H04B10/50H04B10/54
CPCH04B10/2575H04B10/505H04B10/541
Inventor 董泽张惠忠张凯明吴新星蔡林谢水仙
Owner HUAQIAO UNIVERSITY
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