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Reconfigurable LP11a-LP11b mode rotator and application thereof

A lp11a-lp11b, rotator technology, applied in the field of optical communication, can solve the problem that the mode rotator cannot be reconfigured

Active Publication Date: 2021-09-10
UNIV OF ELECTRONIC SCI & TECH OF CHINA
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the existing PLC-based LP 11a -LP 11b The mode rotator cannot be reconfigured, and there is a problem of technical difficulty in slit machining during the manufacturing process; the present invention proposes a reconfigurable LP 11a -LP 11b Mode rotator, the invented mode rotator not only has the function of reconfigurable mode rotation, but also has a simple structure and is easy to make

Method used

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  • Reconfigurable LP11a-LP11b mode rotator and application thereof
  • Reconfigurable LP11a-LP11b mode rotator and application thereof
  • Reconfigurable LP11a-LP11b mode rotator and application thereof

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Embodiment Construction

[0022] In order to facilitate those skilled in the art to understand the technical content of the present invention, the content of the present invention will be further explained below in conjunction with the accompanying drawings.

[0023] figure 1 Shown is a PLC-based reconfigurable LP 11a -LP 11b Basic block diagram of a mode rotator. figure 2 is the cross-section of the device (parallel to figure 1 A schematic diagram of the plane formed by the x and y axes. image 3 A schematic diagram of the size parameters of the key structure of the cross-section of an example of a rotator is given. Here, the length of the electrode heater is 2.5mm, the refractive index of the upper cladding layer 2 of the waveguide is 1.49, and the refractive index of the core layer 3 of the dual-mode waveguide is 1.57. The refractive index of the cladding layer and the lower cladding layer 4 is 1.55. The operating wavelength of the device was set to 1.55 microns.

[0024] In this embodiment, ...

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Abstract

The invention discloses a reconfigurable LP11a-LP11b mode rotator and application thereof, and is applied to the field of optical communication. Aiming to solve the problem that only fixed mode rotation or mode conversion can be realized in the prior art, the invention realizes reconfigurable conversion between an LP11a mode and an LP11b mode by utilizing waveguide asymmetry caused by a thermo-optic effect. The rotator comprises a dual-mode waveguide and an electrode heater located above the dual-mode waveguide; and the electrode heater applies current, all isotherms distributed in a generated temperature field cut a waveguide core at the same horizontal distance and vertical distance, and mode conversion of the LP11a mode and the LP11b mode is achieved.

Description

technical field [0001] The invention belongs to the field of optical communication, in particular to a mode rotator. Background technique [0002] Due to nonlinear effects, fiber fusing effects, Shannon limit, and the influence of optical amplifier bandwidth, the communication capacity of standard single-mode fiber (SMF) is limited to about 100Tbps. With the rapid development of science and technology, scientists have made full use of information dimensions such as wavelength, polarization, and phase of light to improve communication capacity. In future communication networks, if you want to further increase the communication capacity of optical fibers, you need to develop new dimension. The space division multiplexing (Space Division Multiplex, SDM) technology provides the possibility to increase the communication capacity, and has become a research hotspot in recent years. The space division multiplexing technology is mainly divided into a multiplexing technology based o...

Claims

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Application Information

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IPC IPC(8): G02B6/14H04J14/04
CPCG02B6/14H04J14/04
Inventor 陈开鑫张豪王梦柯李俊慧
Owner UNIV OF ELECTRONIC SCI & TECH OF CHINA
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