Waveguide-optical fibre automatic core regulating method and device based on multi-target evolution algorithmic

A multi-objective, automatic adjustment technology, applied in optical fiber transmission, optical waveguide coupling, wavelength division multiplexing systems, etc., can solve problems such as difficulty in setting weight ratios, large amount of automatic core adjustment operations, etc.

Inactive Publication Date: 2007-10-03
UNIV OF SHANGHAI FOR SCI & TECH
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Problems solved by technology

[0012] In order to solve the technical problems of the above-mentioned genetic method, the amount of automatic alignment operation is too large, and the weight ratio is difficult

Method used

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  • Waveguide-optical fibre automatic core regulating method and device based on multi-target evolution algorithmic
  • Waveguide-optical fibre automatic core regulating method and device based on multi-target evolution algorithmic
  • Waveguide-optical fibre automatic core regulating method and device based on multi-target evolution algorithmic

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Embodiment

[0119] 1. Automatic core alignment and results of end-coupling multi-objective evolutionary algorithm for single-core fiber-strip waveguide-single-core fiber system:

[0120] Select the automatic core alignment of the single-core fiber-strip waveguide-single-core fiber system, and investigate the end-face coupling loss test, which can eliminate the problems caused by the loss of the waveguide itself, so as to more objectively reflect the performance of the core alignment system in terms of hardware and software . Due to the single-core coupling, the uniformity index is desensitized. The optical waveguide adopts quartz-based buried single-mode strip waveguide from Japan NHK Company, and the cross-sectional design size of the waveguide core is 8×8μm 2 , The relative refractive index difference is 0.3%, and both ends are plane ground. The optical fiber is a plane-polished single-mode optical fiber produced by Sumitomo Electric Co., Ltd., Japan. A small amount of refractive ind...

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Abstract

A method for automatically regulating core of waveguide-optical fiber based on multi-object evolution algorithm includes treating discrete genetic screening process by stable culling policy, applying father generation cross and real value variation in searching process, only change two individual bodies in each generation of genetic population and having no relationship to artificial weight-setting in process of realizing multi-object optimization.

Description

technical field [0001] The invention relates to a waveguide-optical fiber automatic core adjustment method and device based on a multi-objective evolution algorithm, belonging to the field of optical communication, the field of automatic connection technology and packaging technology of integrated optical waveguide devices and single-mode fiber arrays. Background technique [0002] In recent years, more and more optical waveguide devices have been used in the ultra-high-speed transmission experiment of the optical communication backbone network and the fiber-to-the-home technology of the access network. To introduce optical waveguide devices into optical fiber networks, it is necessary to solve the connection and packaging of optical fibers and optical waveguides. One of the key technologies to be solved is the low-loss connection between the optical waveguide device and the fiber array. The international advanced index is that the loss at each end is less than 0.15dB. To ...

Claims

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Application Information

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IPC IPC(8): H04B10/12G02B6/26G02B6/38H04J14/02H04B10/25
Inventor 陈抱雪隋国荣张晓微
Owner UNIV OF SHANGHAI FOR SCI & TECH
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