The invention belongs to the field of optical fiber communication and wireless communication fusion technology, in particular to a system for generating an optical fiber carrying terahertz signal based on double stage single sideband modulation. The system consists of three parts: suppressed carrier, dual sideband signal generation, double stage single sideband modulation, and transmission and reception of terahertz wave. The double stage single sideband modulation is the core part of the system of the invention, it is in a double sideband suppressed sideband SSB modulation level for the data carrier selection in data modulation process again using baseband SSB modulation technology, the resulting two-stage single sideband modulation. The invention has the advantages of simple structure, low cost, low requirement of the device and compatibility with the existing core network system.
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一种基于双级单边带调制产生光纤载太赫兹信号的系统，其特征在于该系统包括：光抑制载波双边带信号产生部分、双级单边带调制部分和太赫兹波的传输与接收部分；其中： 光抑制载波双边带信号产生部分，由Ｎ个ＤＦＢ激光器组成的Ｎ个光源，第一波分复用器、第一双臂平衡马赫哲德调制器组成，其中，由Ｎ个ＤＦＢ激光器组成的Ｎ个光源发出中心频率为ｆ↓［Ｎ］，均匀相隔为ｆ↓［ｈ］的Ｎ路光，经第一波分复用器合成一路后，通过第一双臂平衡马赫哲德调制器，在同一信号源发出的反相信号作为交流驱动，交流幅度值Ｖ↓［ｍ］和双臂ＤＣ＿ｂａｉｓ，均取Ｖ↓［π］／２的情况下生成Ｎ路合成载波抑制双边带调制信号，Ｖ↓［π］为...
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