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Micro-structured optical fiber for polarization apparatus

A technology of microstructured optical fiber and polarizing device, which is applied in the direction of polarized optical fiber, clad optical fiber, optical waveguide and light guide, etc. It can solve the problems of inability to realize mass production, complicated manufacturing process, and large size, and achieve mass production and manufacturing The effect of simple method and small size

Inactive Publication Date: 2011-05-25
CHINA JILIANG UNIV
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  • Abstract
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Problems solved by technology

[0007] The purpose of the present invention is to propose a microstructured optical fiber for polarizing devices in order to overcome the problems of complex manufacturing process, inability to realize mass production, and large size of existing polarizing devices.

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Embodiment Construction

[0012] The present invention will be further described below in conjunction with the accompanying drawings.

[0013] Such as figure 1 As shown, in the pretreatment stage before the microstructured optical fiber is drawn, the solid quartz rods 1 are arranged in a triangular lattice in a specific area of ​​the preform, and the hollow quartz rods 2 are arranged in a triangular lattice in the rest of the area, forming a total of eight layers of hexagonal quartz The rods are arranged; the preform rods are then drawn into an optical fiber with a diameter of 125 μm; the specific area refers to the area except the innermost layer in the three central columns vertically above the air core 3 .

[0014] The present invention is based on the following principles:

[0015] Microstructured fiber, also known as holey fiber or photonic crystal fiber, is a new type of fiber with excellent optical properties. In its cladding, there are air holes of wavelength order that are periodically arran...

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Abstract

The present invention relates to a micro-structured optical fiber for a polarization apparatus, which aims to solve the problems of the existing polarization apparatus that the manufacturing process is complex, mass production cannot be realized, the size is large, and the like. The micro-structured optical fiber of the polarization apparatus is manufactured via the following steps: arranging solid quartz rods in a triangular lattice in a special area of a prefabricated rod during pretreatment prior to drawing of the micro-structured optical fiber, arranging hollow quartz rods in triangular lattices in other areas, and forming an eight-layer hexagonal quartz rod array; and drawing the prefabricated rod into an optical fiber with the diameter being 125mum. The specific area refers to the area of three central lines vertically above an air fiber core, excepting the innermost layer. The micro-structured optical fiber is easy to manufacture; the polarization apparatus based on the micro-structured optical fiber is also easy to manufacture, and mass production of the polarization apparatus can be realized; and the polarization apparatus based on the micro-structured optical fiber has a high extinction ratio, stable performance and a small size, and can be widely applied in optical fiber communication and optical fiber sensing.

Description

technical field [0001] The invention belongs to the technical field of optical fiber polarization, and relates to a microstructure optical fiber used for a polarization device. Background technique [0002] With the rapid development of optical fiber communication and optical fiber sensing technology, the polarization state of light is becoming more and more important to the system and components. As an important branch of polarization devices, optical fiber polarization devices play a unique role. Fiber optic polarizers are favored due to their small size, light weight, low insertion loss, high extinction ratio, and strong compatibility with fiber optic systems. Optical fiber polarizers are widely used in passive devices such as optical isolators, optical circulators, optical switches, and optical modulators; in optical device test systems, fiber polarizers can be used in conjunction with other devices to obtain stable and flexible test conditions. Realize multi-parameter...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B6/024G02B6/02
Inventor 赵春柳钱文文倪凯金永兴董新永
Owner CHINA JILIANG UNIV
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