Light polarization control device

A technology for manipulating devices and light polarization, applied in optics, nonlinear optics, instruments, etc., can solve problems such as different responses

Inactive Publication Date: 2021-03-23
NANJING UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0014] The technical problem to be solved in this application is to provide a light polarization manipulation device, which keeps the polarization of clockwise propagating light and counterclockwise propagating light on the phase electro-optic modulator consistent, and overcomes t

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Embodiment Construction

[0043] 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.

[0044] Such as figure 2 , image 3 and Figure 4 as shown, figure 2 A schematic structural view of a light polarization manipulation device shown in an exemplary embodiment of the present application; image 3 A schematic structural view of a light polarization manipulation device shown in an exemplary embodiment of the present application; Figure 4 A schematic structural diagram of a light polarization manipulation device ...

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Abstract

The invention discloses a light polarization control device. The device comprises a polarization beam splitter, a magneto-optical crystal, a phase electrooptical modulator, a coupling system, a polarization maintaining optical fiber, a half-wave plate, a single-mode optical fiber, a polarization controller and an arbitrary waveform generator. According to the device, the polarization of clockwisepropagation light and anticlockwise propagation light on a phase electrooptical modulator is kept consistent, the problem that the phase electrooptical modulator has different responses to different polarized light is solved, it is guaranteed that the overall phase of an optical pulse is still controllable while any polarization operation is carried out, and meanwhile, the stability problem in anyoperation is solved.

Description

[0001] This application claims the priority of the Chinese patent application with the application number 2019108934680 and the title of the invention "A Light Polarization Control Device" filed with the China Patent Office on September 20, 2019, the entire contents of which are incorporated in this application by reference. technical field [0002] The present application relates to the technical field of light polarization, in particular to a light polarization manipulation device. Background technique [0003] It involves arbitrary manipulation of the polarization state of photons. The polarization of classical light refers to the vibration direction of the electric field perpendicular to the direction of electromagnetic wave propagation, while the polarization of photons corresponds to the different spin states of photons. The photon polarization state has a wide range of applications in the field of quantum information, including quantum key distribution, quantum telepor...

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Application Information

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IPC IPC(8): G02F1/03G02F1/09
CPCG02F1/0311G02F1/0327G02F1/09
Inventor 龚彦晓杨然张融谢臻达祝世宁
Owner NANJING UNIV
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