Microwave photon channelization receiving method based on polarization multiplexing optical frequency comb and ICR

A technology of microwave photons and receiving methods, applied in the field of optical communication, can solve the problems of slow stop-band attenuation of optical filters and difficult to realize channel division, etc.

Active Publication Date: 2021-06-01
XIDIAN UNIV
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Problems solved by technology

However, it is also limited by the slow attenuation of the stopband of the optical filter, and it is difficult for this channelized receiver to achieve channel division with high inter-channel isolation.

Method used

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  • Microwave photon channelization receiving method based on polarization multiplexing optical frequency comb and ICR
  • Microwave photon channelization receiving method based on polarization multiplexing optical frequency comb and ICR
  • Microwave photon channelization receiving method based on polarization multiplexing optical frequency comb and ICR

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Embodiment Construction

[0044] The embodiments of the present invention are described in detail below in conjunction with the accompanying drawings: this embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation methods and specific operating procedures are provided, but the protection scope of the present invention is not limited to the following The described embodiment:

[0045] such as instructions figure 1 As shown, in this example, the device includes LD, signal source, MZM, OC, EDFA, optical OBPF, DP-QPSK, PC, ICR. The output of LD is divided into two channels through OC, the upper channel is connected to MZM, the upper sideband is reserved through EDFA1 and OBPF1, and then the polarization state is adjusted by PC1 and sent to the sig input terminal of ICR. The lower channel is connected with DP-QPSK, passes through EDFA2 and then passes through OBPF2 to retain the upper sideband, and then sends it to the LO input terminal of ICR ...

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Abstract

The invention discloses a microwave photon channelization receiving method based on polarization multiplexing optical frequency comb and ICR, and the method relates to the field of microwave technology and the field of optical communication technology. Described method is as shown in accompanying drawing 1 of description, comprises light source, radio frequency (RF) signal source, Mazeng modulator (MZM), optical coupler (OC), erbium-doped fiber amplifier (EDFA), optical bandpass filter ( OBPF), Dual Parallel Quadrature Phase Shift Keying Modulator (DP‑QPSK), Polarization Controller (PC), Integrated Coherent Receiver (ICR). Channelized reception of 4 channels can be realized only by using two linear polarization multiplexed local oscillator optical frequency combs. In addition, the scheme also uses ICR combined with DSP algorithm to solve the image interference problem existing in the dual-frequency microwave photon channelization receiver. Since no high-frequency electrical devices are used. This scheme has the advantages of large bandwidth and high image rejection ratio. In addition, this scheme also has the advantage of high gain due to the suppression of the optical carrier and the use of balanced detection.

Description

technical field [0001] The invention relates to the technical field of optical communication and microwave technology, and mainly relates to microwave photon channelization receiver technology. Background technique [0002] Channelized reception generally refers to channel division in the frequency domain. The function of the channelized receiver is to divide the wideband signal in the frequency domain into multiple narrowband signals, and then indirectly complete the processing of the large bandwidth signal by processing the divided narrowband signals. [0003] The most intuitive implementation of channelized receivers is to use electrical filters to complete the division of channelization. This is also the earliest implementation of channelized receivers, that is, electrical analog channelized receivers. Electrical analog channelized receivers are divided into pure channelized receivers, frequency band folded channelized receivers and time-division channelized receivers a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B10/61
CPCH04B10/61H04B10/613
Inventor 田博文爱军张武
Owner XIDIAN UNIV
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