Microwave photon mirror image rejection down conversion device and method
A technology of image suppression and frequency conversion device, which is applied in the field of microwave technology and optical communication, can solve problems such as working frequency band and limited image rejection ratio, and achieve strong operability, improve image rejection ratio, and improve spectral purity.
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[0023] The embodiments of the present invention will be described in detail below with reference to the drawings: this embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation modes and specific operation procedures are given, but the protection scope of the present invention is not limited to the following The described embodiment:
[0024] In this example, the device includes: LD, DPMZM, WDM, two PDs, Hybrid, two microwave signal sources, and DC power supply. The output port of the LD is connected to the optical input port of the DPMZM through a polarization maintaining fiber. The output ports of the two microwave signal sources are connected to the radio frequency input ports of X-MZM and Y-MZM respectively. The output port of the modulator is connected to the WDM common input port. The two output ends are respectively connected to two PDs, and the electrical signals output by the PDs are coupled through Hybrid.
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