Abstract

A new plastic optical fiber star coupler and the means of fabricating it have been developed. This coupler has been realized by twisting and pulling the waist region of a biconical tapered fiber bundle made by pretapered fibers while heating. Controlling the biconical tapered shape has been achieved by jetting gas on the fiber surface while heating the fiber bundle. By using this fabrication method, the desired diameter mixing portion can be formed without breakage from melting. Low-cost optical star couplers with large port number, low excess loss, and small power deviation can be obtained.

© 1986 Optical Society of America

Full Article  |  PDF Article

References

  • View by:
  • |
  • |
  • |

  1. T. Masuzawa et al., “Directional Coupler Using a Plastic Optical Fiber and Its Application,” in Fiber Optic Communication ’82 (1982), pp. 79–81.
  2. I. Kovacevic, “Automotive Multiplex: An Intelligent Local Area Network,” in Proceedings, IEE International Conference on Automotive Electronics (Nov.1983), p. 229.
  3. T. Sasayama et al., “The Development of an Optical Multiplexed Wiring System,” in Proceedings, IEE International Conference on Automotive Electronics (Nov.1983). p. 229.
  4. R. D. Codd, “A Fiber Optic Vehicle Multiplexing System Using a Passive Star Coupler,” in Proceedings, International Congress on Transmission Electronics (IEEE, New York, 1984), III-15-20.
  5. H. Kunugiyama et al., “Plastic Fiber Star Coupler,” presented at Annual Meeting of the Electronic Communication Society of Japan (1985), paper 969.
  6. T. Yoshizawa, T. Kawata, “Plastic Molding of Star-Coupler for Plastic Optical Fiber,” presented at Annual Meeting of the Electronic Communication Society of Japan (1985), paper 353.
  7. K. Imoto, Y. Ikuta, M. Maeda, “New Biconically Tapered Fibre Star Coupler: Structure and Fabrication,” Electron. Lett. 21, 514 (1985).
  8. S. Ohshima, T. Ito, K. Donuma, H. Sugiyama, Y. Fujii, “Small Loss-Deviation Tapered Fiber Star Coupler for LAN,” IEEE/OSA J. Lightwave Technol. LT-3, 556 (1985).
    [CrossRef]

1985 (2)

K. Imoto, Y. Ikuta, M. Maeda, “New Biconically Tapered Fibre Star Coupler: Structure and Fabrication,” Electron. Lett. 21, 514 (1985).

S. Ohshima, T. Ito, K. Donuma, H. Sugiyama, Y. Fujii, “Small Loss-Deviation Tapered Fiber Star Coupler for LAN,” IEEE/OSA J. Lightwave Technol. LT-3, 556 (1985).
[CrossRef]

1982 (1)

T. Masuzawa et al., “Directional Coupler Using a Plastic Optical Fiber and Its Application,” in Fiber Optic Communication ’82 (1982), pp. 79–81.

Codd, R. D.

R. D. Codd, “A Fiber Optic Vehicle Multiplexing System Using a Passive Star Coupler,” in Proceedings, International Congress on Transmission Electronics (IEEE, New York, 1984), III-15-20.

Donuma, K.

S. Ohshima, T. Ito, K. Donuma, H. Sugiyama, Y. Fujii, “Small Loss-Deviation Tapered Fiber Star Coupler for LAN,” IEEE/OSA J. Lightwave Technol. LT-3, 556 (1985).
[CrossRef]

Fujii, Y.

S. Ohshima, T. Ito, K. Donuma, H. Sugiyama, Y. Fujii, “Small Loss-Deviation Tapered Fiber Star Coupler for LAN,” IEEE/OSA J. Lightwave Technol. LT-3, 556 (1985).
[CrossRef]

Ikuta, Y.

K. Imoto, Y. Ikuta, M. Maeda, “New Biconically Tapered Fibre Star Coupler: Structure and Fabrication,” Electron. Lett. 21, 514 (1985).

Imoto, K.

K. Imoto, Y. Ikuta, M. Maeda, “New Biconically Tapered Fibre Star Coupler: Structure and Fabrication,” Electron. Lett. 21, 514 (1985).

Ito, T.

S. Ohshima, T. Ito, K. Donuma, H. Sugiyama, Y. Fujii, “Small Loss-Deviation Tapered Fiber Star Coupler for LAN,” IEEE/OSA J. Lightwave Technol. LT-3, 556 (1985).
[CrossRef]

Kawata, T.

T. Yoshizawa, T. Kawata, “Plastic Molding of Star-Coupler for Plastic Optical Fiber,” presented at Annual Meeting of the Electronic Communication Society of Japan (1985), paper 353.

Kovacevic, I.

I. Kovacevic, “Automotive Multiplex: An Intelligent Local Area Network,” in Proceedings, IEE International Conference on Automotive Electronics (Nov.1983), p. 229.

Kunugiyama, H.

H. Kunugiyama et al., “Plastic Fiber Star Coupler,” presented at Annual Meeting of the Electronic Communication Society of Japan (1985), paper 969.

Maeda, M.

K. Imoto, Y. Ikuta, M. Maeda, “New Biconically Tapered Fibre Star Coupler: Structure and Fabrication,” Electron. Lett. 21, 514 (1985).

Masuzawa, T.

T. Masuzawa et al., “Directional Coupler Using a Plastic Optical Fiber and Its Application,” in Fiber Optic Communication ’82 (1982), pp. 79–81.

Ohshima, S.

S. Ohshima, T. Ito, K. Donuma, H. Sugiyama, Y. Fujii, “Small Loss-Deviation Tapered Fiber Star Coupler for LAN,” IEEE/OSA J. Lightwave Technol. LT-3, 556 (1985).
[CrossRef]

Sasayama, T.

T. Sasayama et al., “The Development of an Optical Multiplexed Wiring System,” in Proceedings, IEE International Conference on Automotive Electronics (Nov.1983). p. 229.

Sugiyama, H.

S. Ohshima, T. Ito, K. Donuma, H. Sugiyama, Y. Fujii, “Small Loss-Deviation Tapered Fiber Star Coupler for LAN,” IEEE/OSA J. Lightwave Technol. LT-3, 556 (1985).
[CrossRef]

Yoshizawa, T.

T. Yoshizawa, T. Kawata, “Plastic Molding of Star-Coupler for Plastic Optical Fiber,” presented at Annual Meeting of the Electronic Communication Society of Japan (1985), paper 353.

Electron. Lett. (1)

K. Imoto, Y. Ikuta, M. Maeda, “New Biconically Tapered Fibre Star Coupler: Structure and Fabrication,” Electron. Lett. 21, 514 (1985).

Fiber Optic Communication ’82 (1)

T. Masuzawa et al., “Directional Coupler Using a Plastic Optical Fiber and Its Application,” in Fiber Optic Communication ’82 (1982), pp. 79–81.

IEEE/OSA J. Lightwave Technol. (1)

S. Ohshima, T. Ito, K. Donuma, H. Sugiyama, Y. Fujii, “Small Loss-Deviation Tapered Fiber Star Coupler for LAN,” IEEE/OSA J. Lightwave Technol. LT-3, 556 (1985).
[CrossRef]

Other (5)

I. Kovacevic, “Automotive Multiplex: An Intelligent Local Area Network,” in Proceedings, IEE International Conference on Automotive Electronics (Nov.1983), p. 229.

T. Sasayama et al., “The Development of an Optical Multiplexed Wiring System,” in Proceedings, IEE International Conference on Automotive Electronics (Nov.1983). p. 229.

R. D. Codd, “A Fiber Optic Vehicle Multiplexing System Using a Passive Star Coupler,” in Proceedings, International Congress on Transmission Electronics (IEEE, New York, 1984), III-15-20.

H. Kunugiyama et al., “Plastic Fiber Star Coupler,” presented at Annual Meeting of the Electronic Communication Society of Japan (1985), paper 969.

T. Yoshizawa, T. Kawata, “Plastic Molding of Star-Coupler for Plastic Optical Fiber,” presented at Annual Meeting of the Electronic Communication Society of Japan (1985), paper 353.

Cited By

OSA participates in CrossRef's Cited-By Linking service. Citing articles from OSA journals and other participating publishers are listed here.

Alert me when this article is cited.


Figures (10)

Fig. 1
Fig. 1

Procedure for fabricating a star coupler by (a) arranging the fibers and (b) twisting and pulling the fiber bundle.

Fig. 2
Fig. 2

Procedure of new fabrication for a plastic optical fiber star coupler: (a) arrangement of fibers, (b) pretapering the fibers, (c) twisting and pulling the pretapered fiber bundle.

Fig. 3
Fig. 3

Ray trajectory in a tapered fiber.

Fig. 4
Fig. 4

Relationship between radiation and power coefficient characteristics of the tapered fiber.

Fig. 5
Fig. 5

New fabrication method for a star coupler.

Fig. 6
Fig. 6

Shape characteristics of biconically fabricated pretapered fibers.

Fig. 7
Fig. 7

Relationship between excess loss and deviation for 2 × 2 star couplers.

Fig. 8
Fig. 8

Histogram of insertion loss of 5 × 5 star couplers.

Fig. 9
Fig. 9

Relationship between input/output fiber port number and excess loss, as well as output power deviation.

Fig. 10
Fig. 10

Fabricated star coupler.

Equations (7)

Equations on this page are rendered with MathJax. Learn more.

K r = 1 - ( a 1 / a 0 ) 2 ;
r n < a 1 ,
r n r 1 - 2 tan l = 1 n - 1 r l cot ( α + 2 l θ ) ,
n = { [ cos - 1 ( n 2 / n 1 ) - α + θ ] / 2 θ } + 1 ,
θ = tan - 1 ( a 0 - a 1 ) / Δ l 1 ;
L e ( i ) = 10 log 10 ( P i 1 + P i z + + P i m ) / P i ,
Δ L = ( 10 log 10 P max / P min ) / 2 ,

Metrics