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Applied Optics

Applied Optics


  • Vol. 42, Iss. 31 — Nov. 1, 2003
  • pp: 6261–6266

All-fiber spot-size transformer for efficient free-space optical interconnecting devices

Kyung-Rok Kim and Kyunghwan Oh  »View Author Affiliations

Applied Optics, Vol. 42, Issue 31, pp. 6261-6266 (2003)

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A new concatenated configuration of optical fibers is proposed to improve misalignment tolerance and working distance in a free-space optical interconnection. The structure is composed of three segments: a thermally expanded core fiber, a coreless silica fiber, and a claddingless graded-index fiber. A numerical analysis for the design of each fiber segment is performed completely, and the device characteristics are experimentally evaluated in terms of the tolerances for a 1-dB coupling-loss increment against longitudinal, transverse, and angular misalignments.

© 2003 Optical Society of America

OCIS Codes
(060.0060) Fiber optics and optical communications : Fiber optics and optical communications
(060.2310) Fiber optics and optical communications : Fiber optics
(060.2340) Fiber optics and optical communications : Fiber optics components
(350.3950) Other areas of optics : Micro-optics

Original Manuscript: March 6, 2003
Published: November 1, 2003

Kyung-Rok Kim and Kyunghwan Oh, "All-fiber spot-size transformer for efficient free-space optical interconnecting devices," Appl. Opt. 42, 6261-6266 (2003)

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  1. K. Kobayashi, R. Ishikawa, K. Minemura, S. Sugimoto, “Micro-optic devices for fiber-optic communications,” Fiber Integr. Opt. 2, 1–7 (1979). [CrossRef]
  2. I. Kitano, H. Ueno, M. Toyama, “Gradient-index lens for low-loss coupling of a laser diode to single-mode fiber,” Appl. Opt. 25, 3336–3339 (1986). [CrossRef] [PubMed]
  3. J. L. Jackel, S. Hackwood, G. Beni, “Electrowetting optical switch,” Appl. Phys. Lett. 40, 4–6 (1982). [CrossRef]
  4. Y. Wang, T. Sato, J. Minowa, H. Kataoka, “High-performance lensless in-line filters,” Appl. Opt. 34, 716–720 (1995). [CrossRef] [PubMed]
  5. T. Sato, J. Sun, R. Kasahara, S. Kawakami, “Lens-free in-line optical isolators,” Opt. Lett. 24, 1337–1339 (1999). [CrossRef]
  6. K. Kato, I. Nishi, K. Yohino, H. Hanafusa, “Optical coupling characteristics of laser diodes to thermally diffused expanded core fiber coupling using an aspheric lens,” IEEE Photonics Technol. Lett. 5, 469–470 (1991). [CrossRef]
  7. W. L. Emkey, C. A. Jack, “Analysis and evaluation of graded-index fiber lenses,” J. Lightwave Technol. LT-5, 1156–1164 (1987). [CrossRef]
  8. P. Chanclou, M. Thual, J. Lostec, D. Pavy, M. Gadonna, A. Poudoulec, “Collective micro-optics of fiber ribbon for optical interconnection devices,” J. Lightwave Technol. 17, 924–928 (1999). [CrossRef]
  9. K. Shiraishi, H. Ohnuki, N. Hiraguri, K. Matsumura, I. Ohishi, H. Morichi, H. Kazami, “A lensed-fiber coupling scheme utilizing a graded-index fiber and hemispherically ended coreless fiber tip,” J. Lightwave Technol. 15, 356–363 (1997). [CrossRef]
  10. A. Ogura, S. Kuchiki, K. Shiraishi, K. Ohta, I. Oishi, “Efficient coupling between laser diodes with a highly elliptic field and single-mode fibers by means of GIO fibers,” IEEE Photonics Technol. Lett. 13, 1191–1193 (2001). [CrossRef]
  11. K. Iga, “Theory for gradient-index imaging,” Appl. Opt. 19, 1039–1043 (1970). [CrossRef]
  12. K. Iga, “Evaluation and reduction of aberrations in distributed-index lens: review,” Appl. Opt. 21, 1024–1029 (1982). [CrossRef] [PubMed]
  13. H. W. Kogelnik, “On the propagation of Gaussian beams of light through lenslike media including those with a loss and gain variation,” Appl. Opt. 4, 1562–1569 (1965). [CrossRef]
  14. R. Kishimoto, M. Koyama, “Coupling characteristics between single-mode fiber and square-law medium,” IEEE Trans. Microwave Theory Tech. MTT-30, 882–893 (1982). [CrossRef]
  15. B. E. A. Saleh, M. C. Teich, Fundamentals of Photonics (Wiley, New York, 1991), p. 85.

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