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
CN100357204CActive Publication Date: 2007-12-26SHANGHAI UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHANGHAI UNIV
Publication Date
2007-12-26

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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.
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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: â‘  the absorption ...

Claims

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