Novel Flexible Fine Ferrule for Optical Fiber Connectors

Shin'ichi IWANO; Yasuhiro ANDO

Novel Flexible Fine Ferrule for Optical Fiber Connectors

Shin'ichi IWANO, Yasuhiro ANDO

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A novel flexible ferrule only 0.8 mm in diameter is proposed and demonstrated as a key element in optical fiber connectors. Miniature aggregated multiple fiber connectors with a fiber pitch of 2-5 mm are possible with this Flexible Fine ferrule" (FF-ferrule). This paper presents the fundamental concept of the FF-ferrule. Then, ferrule bending characteristics, a distinctive mechanical feature of this ferrule, are discussed in detail both theoretically and experimentally. The method of designing the FF-ferrule is also described based on the theoretical results. A prototype FF-ferrule was made by precision transfer molding. Connection loss was as small as 0.6 dB, because the ferrule bending can compensate for axial misalignments up to 0.5 mm. In addition, 20% of the measured connections showed a connection loss of less than 0.3 dB. The high pressure contact from the small cross-section of the ferrule makes physical contact" between the endfaces of the fiber.

Publication: IEICE TRANSACTIONS on transactions Vol.E71-E No.4 pp.406-413

Publication Date: 1988/04/25

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Type of Manuscript: PAPER

Category: Communication Device and Circuit

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Shin'ichi IWANO
Yasuhiro ANDO

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Shin'ichi IWANO, Yasuhiro ANDO, "Novel Flexible Fine Ferrule for Optical Fiber Connectors" in IEICE TRANSACTIONS on transactions, vol. E71-E, no. 4, pp. 406-413, April 1988, doi: .
Abstract: A novel flexible ferrule only 0.8 mm in diameter is proposed and demonstrated as a key element in optical fiber connectors. Miniature aggregated multiple fiber connectors with a fiber pitch of 2-5 mm are possible with this Flexible Fine ferrule" (FF-ferrule). This paper presents the fundamental concept of the FF-ferrule. Then, ferrule bending characteristics, a distinctive mechanical feature of this ferrule, are discussed in detail both theoretically and experimentally. The method of designing the FF-ferrule is also described based on the theoretical results. A prototype FF-ferrule was made by precision transfer molding. Connection loss was as small as 0.6 dB, because the ferrule bending can compensate for axial misalignments up to 0.5 mm. In addition, 20% of the measured connections showed a connection loss of less than 0.3 dB. The high pressure contact from the small cross-section of the ferrule makes physical contact" between the endfaces of the fiber.
URL: https://globals.ieice.org/en_transactions/transactions/10.1587/e71-e_4_406/_p

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@ARTICLE{e71-e_4_406,
author={Shin'ichi IWANO, Yasuhiro ANDO, },
journal={IEICE TRANSACTIONS on transactions},
title={Novel Flexible Fine Ferrule for Optical Fiber Connectors},
year={1988},
volume={E71-E},
number={4},
pages={406-413},
abstract={A novel flexible ferrule only 0.8 mm in diameter is proposed and demonstrated as a key element in optical fiber connectors. Miniature aggregated multiple fiber connectors with a fiber pitch of 2-5 mm are possible with this Flexible Fine ferrule" (FF-ferrule). This paper presents the fundamental concept of the FF-ferrule. Then, ferrule bending characteristics, a distinctive mechanical feature of this ferrule, are discussed in detail both theoretically and experimentally. The method of designing the FF-ferrule is also described based on the theoretical results. A prototype FF-ferrule was made by precision transfer molding. Connection loss was as small as 0.6 dB, because the ferrule bending can compensate for axial misalignments up to 0.5 mm. In addition, 20% of the measured connections showed a connection loss of less than 0.3 dB. The high pressure contact from the small cross-section of the ferrule makes physical contact" between the endfaces of the fiber.},
keywords={},
doi={},
ISSN={},
month={April},}

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TY - JOUR
TI - Novel Flexible Fine Ferrule for Optical Fiber Connectors
T2 - IEICE TRANSACTIONS on transactions
SP - 406
EP - 413
AU - Shin'ichi IWANO
AU - Yasuhiro ANDO
PY - 1988
DO -
JO - IEICE TRANSACTIONS on transactions
SN -
VL - E71-E
IS - 4
JA - IEICE TRANSACTIONS on transactions
Y1 - April 1988
AB - A novel flexible ferrule only 0.8 mm in diameter is proposed and demonstrated as a key element in optical fiber connectors. Miniature aggregated multiple fiber connectors with a fiber pitch of 2-5 mm are possible with this Flexible Fine ferrule" (FF-ferrule). This paper presents the fundamental concept of the FF-ferrule. Then, ferrule bending characteristics, a distinctive mechanical feature of this ferrule, are discussed in detail both theoretically and experimentally. The method of designing the FF-ferrule is also described based on the theoretical results. A prototype FF-ferrule was made by precision transfer molding. Connection loss was as small as 0.6 dB, because the ferrule bending can compensate for axial misalignments up to 0.5 mm. In addition, 20% of the measured connections showed a connection loss of less than 0.3 dB. The high pressure contact from the small cross-section of the ferrule makes physical contact" between the endfaces of the fiber.
ER -