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Free space optical signal transmission method and free space optical signal transmission device

A technology of free space and transmission method, applied in the field of optical communication, can solve problems such as large diffraction loss, and achieve the effect of reducing distance and reducing diffraction loss

Pending Publication Date: 2020-08-21
NANJING UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] This application provides a free-space optical signal transmission method and a free-space optical signal transmission device to solve the problem of large diffraction loss in the long-distance transmission of free-space optical signals in the related art

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  • Free space optical signal transmission method and free space optical signal transmission device
  • Free space optical signal transmission method and free space optical signal transmission device
  • Free space optical signal transmission method and free space optical signal transmission device

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Embodiment Construction

[0023] The embodiments will be described in detail hereinafter, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following examples do not represent all implementations consistent with this application. These are merely examples of systems and methods consistent with aspects of the present application as recited in the claims.

[0024] see figure 1 , figure 1 It is a flow chart of a free-space optical signal transmission method provided by this application, which is applied to the telescope at the transmitting end. Such as figure 1 shown, including the following steps:

[0025] Step 101: Transmit a free-space optical signal to a relay device, so that the relay device relays the free-space optical signal to a telescope at a receiving end.

[0026] In...

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Abstract

The invention provides a free space optical signal transmission method and a free space optical signal transmission device, and the method comprises the steps: receiving a free space optical signal transmitted by a transmitting end telescope, and transferring the free space optical signal to a receiving end telescope; thus, when free space optical signals is transmitted for a long distance, the free space optical signal can be transferred through the relay device, the distance for directly transmitting the free space optical signal is reduced, and the diffraction loss can be reduced.

Description

technical field [0001] The present application relates to the technical field of optical communication, and in particular to a free-space optical signal transmission method and a free-space optical signal transmission device. Background technique [0002] In free-space optical communication, in order to transmit optical signals from the transmitting end to the receiving end efficiently and without loss, it is necessary to collimate the output free-space beam, which requires a telescope with a suitable caliber. After the beam is collimated by the telescope, it satisfies the Gaussian distribution in the process of space propagation. For the optical signal output by the telescope, the lateral distribution of the light spot becomes smaller first, then becomes larger, and finally diverges approximately at a certain angle. If the aperture of the receiving telescope is smaller than the spot size of the optical signal, the light beyond the aperture of the receiving telescope cannot...

Claims

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Application Information

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IPC IPC(8): H04B10/11H04B10/29
CPCH04B10/11H04B10/29
Inventor 谢臻达龚彦晓刘华颖赵刚祝世宁
Owner NANJING UNIV