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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 35, Iss. 9 — Mar. 20, 1996
  • pp: 1478–1484

Characteristics analysis of wavelength-division-multiplexing fiber couplers fabricated with a microheater

Yoshiaki Takeuchi  »View Author Affiliations


Applied Optics, Vol. 35, Issue 9, pp. 1478-1484 (1996)
http://dx.doi.org/10.1364/AO.35.001478


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Abstract

Optical properties and taper profiles of 1.31/1.55-μm wavelength-division-multiplexing (WDM) fiber couplers have been experimentally analyzed. A newly developed microheater was used for the fabrication in air. The elongation lengths were controlled so that the fourth coupling peak would reach the 1.55-μm wavelength. The wavelength difference Δλ between the peak coupling wavelength of 1.55 μm and that around 1.31 μm decreased linearly at each fusion temperature with the fusion time. At each fusion temperature, the Δλ value decreased linearly with the elongation length and decreased exponentially with the neck width. The Δλ value and the taper shape at the minimum limit of the degree of fusion were estimated. The fabrication condition and the taper shape for 1.31-μm and 1.55-μm WDM coupling were also analyzed.

© 1996 Optical Society of America

History
Original Manuscript: May 24, 1995
Revised Manuscript: November 16, 1995
Published: March 20, 1996

Citation
Yoshiaki Takeuchi, "Characteristics analysis of wavelength-division-multiplexing fiber couplers fabricated with a microheater," Appl. Opt. 35, 1478-1484 (1996)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-35-9-1478


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References

  1. I. Yokohama, K. Okamoto, J. Noda, “Fiber coupler fabrication with automatic fusion-elongation process for low excess loss and high coupling ratio accuracy,” J. Lightwave Technol. 5, 910–915 (1987).
  2. Y. Takeuchi, J. Noda, “Novel fiber coupler tapering process using a microheater,,” IEEE Photon. Technol. Lett. 4, 465–467 (1992).
  3. Y. Takeuchi, M. Horiguchi, “Microheater control of wavelength-flattened fiber coupler properties,” Appl. Opt. 33, 1029–1034 (1994).
  4. Y. Takeuchi, J. Noda, “Coupler type multi/demultiplexer composed of different parameter fibers,” Electron. Lett. 27, 575–576 (1991).
  5. R. P. Kenny, T. A. Birks, K. P. Oakley, “Control of optical fiber taper shape,” Electron. Lett. 27, 1654–1656 (1991).
  6. M. Eisenmann, E. Weidel, “Single-mode fused biconical coupler wavelength division multiplexing with channel spacing between 100 and 300 nm,” J. Lightwave Technol. 6, 113–119 (1988).
  7. Y. Takeuchi, “Thermodynamic analysis of WDM fiber couplers fabricated using a microheater,” J. Non-Cryst. Solids (to be published).

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