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Semiconductor film inner packing layer enlarging optical fiber and its premade rod manufacturing method

A prefabricated rod and semiconductor technology, applied in manufacturing tools, glass manufacturing equipment, etc., can solve problems such as material decomposition, and achieve the effects of less material decomposition, high amplification gain, and stable semiconductor performance

Active Publication Date: 2007-12-26
SHANGHAI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At the same time, the object of the present invention is also to prepare the blank rod of the amplifying optical fiber with the inner cladding of the semiconductor thin film——the amplifying optical fiber prefabricated rod, which mainly solves the problem of material decomposition and transformation in the process of preparing the semiconductor thin film layer.

Method used

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  • Semiconductor film inner packing layer enlarging optical fiber and its premade rod manufacturing method

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Embodiment Construction

[0017] A preferred embodiment of the present invention is: the semiconductor thin film inner cladding amplifying optical fiber is made up of a core rod, an inner cladding and an outer cladding, the inner cladding is sandwiched between the core rod and the outer cladding, and the core rod is made of doped GeO 2 It is composed of quartz material, whose refractive index is higher than that of the pure quartz material of the outer cladding; the inner cladding is a thin film cladding, which is composed of an active semiconductor with a direct band gap material with amplifying function; and the outer cladding is composed of pure quartz.

[0018] The manufacturing method of the preform of the optical fiber, its manufacturing process and process steps are as follows:

[0019] a. Using improved chemical vapor deposition process to make core rod 1: fasten the quartz reaction tube on the improved chemical vapor deposition lathe, rotate at a speed of 50±5 rpm, and use high-purity O 2 SiCl...

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Abstract

The present invention relates to a semiconductor film internal cladding amplification optical fibre and its perform manufacture method. Said perform is formed from core rod, internal cladding and external cladding, the internal cladding is sandwiched between core rod and external cladding, the core rod is made up by using GeO2 doped quartz material, its refractive index is greater than that of pure quartz material of external cladding; the internal cladding is a film cladding and is made up by using active semiconductor direct band-gap material with amplification function, and the external cladding is made up by using pure quartz material. The manufacture method of perform includes the following steps: (a) adopting improved chemical gas-phase deposition process to make core rod; (b) making external cladding; (c) making film internal cladding; (d) adopting rod-inserting technique to make assembly and (e) reducing rod.

Description

technical field [0001] The invention relates to an optical fiber prefabricated rod and a manufacturing method thereof, in particular to a semiconductor film inner cladding amplifying optical fiber and a manufacturing method thereof. Background technique [0002] Amplifying optical fiber is an indispensable special optical fiber in optical fiber communication, and it is the core component of optical fiber amplifier. Optical fiber amplifiers are widely used in long-distance, large-capacity, high-speed communication systems, access networks, optical fiber CATV networks, military systems and other fields. Rare earth-doped amplifying fiber is the most commonly used amplifying fiber at home and abroad. Large companies in some developed countries in the world have invested a lot of manpower and material resources in the research and development of such optical fibers. However, the currently used doped rare-earth amplifying fiber still has the following problems: ① the absorption ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03B37/01C03B37/018
CPCC03B37/01807C03B2201/02C03B37/01413C03B2201/31C03B37/01211C03B2201/58
Inventor 王廷云王克新陈振宜
Owner SHANGHAI UNIV
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