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Analog Photonic Link

A link and photonic technology, applied in the field of analog photonic links, to achieve the effect of suppressing frequency chirp, increasing modulation bandwidth and reducing cost

Active Publication Date: 2022-05-20
中科鑫通微电子技术(北京)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The invention provides an analog photon link, which is used to solve the technical problem of how to improve the modulation bandwidth of a direct modulation laser, reduce the output optical chirp, and obtain a low-cost and high-performance analog photon link

Method used

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Embodiment Construction

[0039] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are intended to illustrate the present invention, but not to limit the scope of the present invention.

[0040] In the description of the embodiments of the present invention, it should be noted that the orientations or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", etc. are based on the drawings. The orientation or positional relationship shown is only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a reference to the present invention. Limitations of Invention Embodiments. Furthermore, the terms "...

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Abstract

The present invention relates to the technical field of optical fiber communication, and provides an analog photonic link, including: a transmitting unit and a receiving unit; the transmitting unit includes a continuous wave laser and a directly modulated laser; the directly modulated laser includes an optical signal input terminal, an optical signal output terminal and The electrical signal input end; the optical signal input end is connected to the output end of the continuous wave laser; the optical signal output end is connected to the input end of the receiving unit; the electrical signal input end is used to receive microwave modulation signals; the continuous wave laser is used to generate injection light; The directly modulated laser is used to modulate the optical carrier based on the microwave modulation signal in the injection-locked state to generate an optical-carrying analog signal; the receiving unit is used to perform photoelectric conversion on the optical-carrying analog signal to generate an electrical signal. The analog photon link provided by the invention improves the modulation bandwidth of the direct modulation laser, suppresses the frequency chirp caused by carrier fluctuations caused by intensity modulation, and reduces the cost of the analog photon link.

Description

technical field [0001] The invention relates to the technical field of optical fiber communication, in particular to an analog photonic link. Background technique [0002] The analog photonic technology has the characteristics of large bandwidth, low transmission loss, and easy multiplexing. It can realize long-distance transmission of broadband analog signals, and can be applied to airborne towed decoy systems, optical delay radar testing, and signal transmission of radio telescope arrays. , distributed radar networking, optical wireless communication and other scenarios. Intensity Modulation Direct Detection (IMDD) analog photonic link based on Mach-Zehnder modulator is the most popular link structure at present, but it has the problems of complicated control and high cost. The Mach Zender modulator needs to adopt a bias point control circuit to overcome the problem of the bias point drift of the modulator, which requires higher working conditions and higher cost of photo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B10/50H04B10/516
CPCH04B10/504H04B10/5165Y02D30/70
Inventor 隋军梁炳寅盛家坤
Owner 中科鑫通微电子技术(北京)有限公司
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