Optical fiber attenuator made by fusion splicing offset fiber en

Details Optical fiber attenuator made by fusion splicing offset fiber en Optical fiber attenuator made by fusion splicing offset fiber en

1996-04-26

1999-04-27

Jeffery, John A.

Electric heating

Heating devices

Electric arc-type devices

385 96, 385 97, 385140, G02B 626

Patent

active

058978038

ABSTRACT:
Optical fiber attenuators are produced by splicing two fiber ends by melt-fusioning. The fiber ends are initially placed with a large lateral offset and the heating of the spliced portion is continued during a long time period to completely align the fiber ends, in particular the cores (3) and claddings (2) thereof, and to make material of the fibers cores (3) diffuse (23) into the neighbouring regions of the fiber claddings. By properly choosing the extended time for prolonged heating attenuators can be produced with a good repeatability. The prolonged heating period is significantly shortened by the use of a large initial offset.

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Benner, A. et al, "Low-Reflectivity In-Line Variable Attenuator Utilizing Optical Fiber Tapers", J. of Lightwave Tech., vol. 8, No. 1, Jan. 1990.
Cork, Michael, "Passive Fiber Optic Components", Short Course Notes, OFC '91, p. 63, Feb. 1991.
Kashima, N., "A New Approach to an Optical Attenuator for a Time Compression Multiplex System Using a Laser Diode as Both Transmitter and Receiver", J. of Lightwave Tech., vol. 9, No. 8, Aug. 1991.

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