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Applied Optics

Applied Optics


  • Vol. 39, Iss. 25 — Sep. 1, 2000
  • pp: 4490–4500

Optical Coupling Method Utilizing a Lensed Fiber Integrated With a Long-Period Fiber Grating

Wen Tzung Chen and Lon A. Wang  »View Author Affiliations

Applied Optics, Vol. 39, Issue 25, pp. 4490-4500 (2000)

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A novel optical coupling scheme that uses a lensed fiber integrated with a long-period fiber grating (LPFG) is proposed. Two experiments are performed to demonstrate the validity of such a scheme in single-mode-fiber–single-mode-fiber (SMF-to-SMF) and laser-diode–single-mode-fiber (LD-to-SMF) coupling setups. The measured results show that for an appropriate lens radius the addition of a LPFG will lead to a higher coupling efficiency over a longer range of working distance than without the LPFG. Coupling efficiencies of ~78% and 35% are achieved for corresponding working distances of ~250 and 110 μm, 1-dB longitudinal tolerances of ~40 and 26 μm, and 1-dB transverse tolerances of ~7.6 and 2.6 μm for SMF-to-SMF and LD-to-SMF, respectively.

© 2000 Optical Society of America

OCIS Codes
(050.2770) Diffraction and gratings : Gratings
(060.2310) Fiber optics and optical communications : Fiber optics

Wen Tzung Chen and Lon A. Wang, "Optical Coupling Method Utilizing a Lensed Fiber Integrated With a Long-Period Fiber Grating," Appl. Opt. 39, 4490-4500 (2000)

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  1. A. M. Vengsakar, P. J. Lemaire, J. B. Judkins, V. Bhatia, T. Erdogan, and J. Sipe, “Long-period fiber gratings as band-rejection filters,” J. Lightwave Technol. 4, 58–65 (1996).
  2. A. M. Vengsakar, J. R. Pedrazzani, J. B. Judkins, and P. J. Lemaire, “Long-period fiber-grating-based gain equalizers,” Opt. Lett. 21, 336–338 (1996).
  3. D. C. Johnson, F. Bilodeau, B. Malo, K. O. Hill, P. G. J. Wigley, and G. I. Stegeman, “Long-length, long-period rocking filters fabricated from conventional monomode telecommunications optical fiber,” Opt. Lett. 17, 1635–1637 (1992).
  4. K. O. Hill, B. Malo, K. A. Vineberg, F. Bilodeau, D. C. Johnson, and I. Skinner, “Efficient mode conversion in telecommunication fiber using externally written gratings,” Electron. Lett. 26, 1270–1272 (1990).
  5. V. Bhatia and A. M. Vengsarkar, “Optical fiber long-period grating sensors,” Opt. Lett. 21, 692–694 (1996).
  6. J. Yamada, Y. Murakami, J. Sakai, and T. Kimura, “Characteristics of a hemispherical microlens for coupling between a semiconductor laser and single-mode fiber,” IEEE J. Quantum. Electron. QE-16, 1067–1072 (1980).
  7. H. Kuwahara, M. Sasaki, and N. Tokoyo, “Efficient coupling from semiconductor lasers into single-mode fibers with tapered hemispherical ends,” J. Lightwave Technol. 14, 58–65 (1996).
  8. C. Edwards, H. Presby, and C. Dragone, “Ideal microlenses for laser to fiber coupling,” J. Lightwave Technol. 11, 252–257 (1993).
  9. W. L. Emkey and C. A. Jack, “Analysis and evaluation of graded-index fiber-lenses,” J. Lightwave Technol. 5, 1156–1164 (1987).
  10. K. Shiraishi, “A lensed fiber with a long working distance for integrated coupling between laser diodes and single-mode fibers,” J. Lightwave Technol. 13, 1736–1744 (1995).
  11. W. Bludau and R. H. Rosserg, “Low-loss laser-to-fiber coupling with negligible optical feedback,” J. Lightwave Technol. LT-3, 294–302 (1985).
  12. I. Moerman, P. P. Van Daele, and P. M. Demeester, “A review on fabrication technologies for the monolithic integration of tapers with III–V semiconductor devices,” IEEE J. Sel. Top. Quantum. Electron. 3, 1308–1320 (1997).
  13. N. Kalonji and J. Semo, “High efficiency long working distance laser diode to singlemode fiber coupling arrangement,” Electron. Lett. 30, 892–893 (1994).
  14. P. Chanclou, M. Thual, J. Lostec, P. Auvray, J. Caulet, G. Joulié, A. Poudoulec, and B. Clavel, “Highly efficient collective coupling between laser diode array and lensed fiber ribbon,” Electron. Lett. 34, 273–274 (1998).
  15. W. T. Chen and L. A. Wang, “Optical coupling between singlemode fibers by utilizing long-period fibre grating,” Electron. Lett. 35, 421–423 (1999).
  16. H. J. Patrick, C. G. Askins, R. W. McElhanon, and E. J. Friebel, “Amplitude mask patterned on an excimer laser mirror for high intensity writing of long period fiber gratings,” Electron. Lett. 33, 1167–1168 (1997).
  17. E. M. Dianove, D. S. Stardubov, S. A. Vasiliev, A. A. Frolov, and O. I. Medvedkov, “Refractive-index gratings written by near-ultraviolet radiation,” Opt. Lett. 22, 221–223 (1997).
  18. D. D. Davis, T. K. Gaylord, E. N. Glytsis, and S. C. Mettle, “CO2 laser-induced long-period fiber gratings: spectral characteristics, cladding modes and polarisation independence,” Electron. Lett. 34, 1416–1417 (1998).
  19. T. Enomoto, M. Shigehara, S. Ishikawa, T. Danzuka, and H. Kanamori, “Long-period fiber grating in a pure-silica-core fiber written by residual stress relaxation,” in Optical Fiber Communication Conference (OFC), Vol. 2 of 1998 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1998), paper ThG2.
  20. H. Kogelnik, “On the propagation of Gaussian beams of light through lenslike media including those with a loss or gain variation,” Appl. Opt. 4, 1562–1569 (1965).
  21. G. A. Massey and A. E. Siegman, “Reflection and refraction of a Gaussian light beam at tilted ellipsoidal surfaces,” Appl. Opt. 8, 975–978 (1969).
  22. J.-I. Sakai and T. Kimura, “Design of a miniature lens for semiconductor laser to single-mode fiber coupling,” IEEE J. Quantum Electron. QE-16, 1059–1066 (1980).
  23. T. Erdogan, “Cladding-mode resonances in short- and long-period fiber grating filters,” J. Opt. Soc. Am. A 14, 1760–1773 (1997).
  24. D. Marcuse, Theory of Dielectric Optical Waveguides (Academic, Boston, Mass., 1991), Chaps. 2 and 3.
  25. A. Yariv and P. Yeh, Optical Waves in Crystals (Wiley, New York, 1983), Chap. 11.
  26. T. Erdogan, “Fiber grating spectra,” J. Lightwave Technol. 15, 1277–1294 (1997).
  27. H. J. Patrick, A. D. Kersey, and F. Bucholtz, “Analysis of the response of long period fiber grating to external index of refraction,” J. Lightwave Technol. 16, 1606–1611 (1998).
  28. B. H. Lee and J. Nishii, “Cladding-surrounding interface insensitive long-period grating,” Electron. Lett. 34, 1129–1130 (1998).
  29. K. Shima, K. Himeno, T. Sakai, S. Okude, A. Wada, and R. Yamauchi, “A novel temperature-insensitive long-period fiber grating using a boron-codoped-germanosilicate-core fiber,” in Optical Fiber Communication Conference, Vol. 6 of 1997 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1997), paper FB2.

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