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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 improving working bandwidth, reducing cost and simple control method

Active Publication Date: 2022-03-01
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] Embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but should not be used 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 embodiment of the present invention and simplifying the description, and does not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a Limitations of the Examples of the Invention. In addition, the terms "first", "second", and "third" are used...

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Abstract

The invention relates to the technical field of optical fiber communication, and provides an analog photonic link, which comprises a transmitting unit and a receiving unit, the transmitting unit comprises a continuous wave laser and a directly modulated laser; the directly modulated laser comprises an optical signal input end, an optical signal output end and an electric signal input end; the optical signal input end is connected with the output end of the continuous wave laser; the optical signal output end is connected with the input end of the receiving unit; the electric signal input end is used for receiving microwave modulation signals; the continuous wave laser is used for generating injection light; the directly modulated laser is used for modulating an optical carrier based on a microwave modulation signal in an injection locking state and then generating an optical carrier analog signal; and the receiving unit is used for performing photoelectric conversion on the optical carrier analog signal to generate an electric signal. According to the analog photon link provided by the invention, the modulation bandwidth of the directly modulated laser is improved, the frequency chirp caused by carrier fluctuation under intensity modulation is inhibited, and the cost of the analog photon link is reduced.

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] Analog photon 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 time-delay radar testing, and signal transmission of radio telescope arrays. , Distributed radar networking, optical wireless communication and other scenarios. The Intensity Modulation Direct Detection (IMDD) analog photonic link based on the Mach-Zehnder modulator is currently the most popular link structure, but there are problems such as complex control and high cost. The Mach-Zehnder modulator needs to use a bias point control circuit to overcome the problem of the bias point drift of the modulator, the working conditions are relatively high, and the cost of p...

Claims

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Application Information

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Patent Type & Authority Applications(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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