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Applied Optics

Applied Optics


  • Vol. 37, Iss. 19 — Jul. 1, 1998
  • pp: 4084–4090

Reduction of coupling loss in a one-to-many collimating system for a wavelength division (de)multiplexer

W. S. Hu, Q. J. Zeng, and Y. H. Jin  »View Author Affiliations

Applied Optics, Vol. 37, Issue 19, pp. 4084-4090 (1998)

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In a 1 × N wavelength division (de)multiplexer, N receiving (Rx-) gradient-index-rod lenses (GRIN’s) are connected to a common transmitting (Tx-) GRIN. All GRIN’s are a little longer (ΔZ0 for the Tx- and ΔZ i with i = 1, 2, … , N for the Rx-GRIN’s) than the quarter-pitch. To reduce the average coupling loss and the deviations, ΔZ0 and ΔZ i are optimized independently (unequally) or equally by computer programming for small N, such as N = 4 and 8. For a larger N (e.g., 16), a relay GRIN is required, which is a little (ΔZ r ) longer than the half-pitch. The best position of the relay GRIN is located between the seventh and the eighth Rx-GRIN’s. Other parameters including ΔZ0, ΔZ i , and ΔZ r are all optimized. As a result the (de)multiplexer has lower losses.

© 1998 Optical Society of America

OCIS Codes
(060.1810) Fiber optics and optical communications : Buffers, couplers, routers, switches, and multiplexers
(060.4230) Fiber optics and optical communications : Multiplexing
(110.2760) Imaging systems : Gradient-index lenses
(120.1680) Instrumentation, measurement, and metrology : Collimation

Original Manuscript: October 23, 1997
Revised Manuscript: March 3, 1998
Published: July 1, 1998

W. S. Hu, Q. J. Zeng, and Y. H. Jin, "Reduction of coupling loss in a one-to-many collimating system for a wavelength division (de)multiplexer," Appl. Opt. 37, 4084-4090 (1998)

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  1. M. Fujiwara, M. S. Goodman, M. J. O’Mahony, O. K. Tonguz, A. E. Willner, “Guest editorial - Multiwavelength optical technology and networks,” J. Lightwave Technol. 14, 932–935 (1996). [CrossRef]
  2. S. Okamoto, A. Watanabe, K-I. Sato, “Optical path cross-connect node architectures for photonic transport network,” J. Lightwave Technol. 14, 1410–1422 (1996). [CrossRef]
  3. C. Dragone, C. A. Edwards, R. C. Kistler, “Integrated optics N × N multiplexer on silicon,” IEEE Photon. Technol. Lett. 3, 896–899 (1991). [CrossRef]
  4. K. Okamoto, K. Takiguchi, Y. Ohimori, “16-channel optical add–drop multiplexer using silica-based arrayed-waveguide gratings,” Electron. Lett. 31, 723–724 (1995). [CrossRef]
  5. B. Glance, I. P. Kaminow, R. W. Wilson, “Applications of the integrated waveguide grating router,” J. Lightwave Technol. 12, 957–962 (1994). [CrossRef]
  6. K. Okamoto, K. Hattori, Y. Ohmori, “Fabrication of multiwavelength simultaneous monitoring device using arrayed-waveguide grating,” Electron. Lett. 32, 569–570 (1996). [CrossRef]
  7. Y. Inoue, A. Himeno, K. Moriwaki, M. Kawachi, “Silica-based arrayed-waveguide grating circuit as optical splitter/router,” Electron. Lett. 31, 726–727 (1995). [CrossRef]
  8. J. P. Laude, J. Flamand, J. C. Gautherin, D. Lepere, P. Gacoin, F. Bos, J. Lerner, “Stimax, a grating multiplexer for monomode or multimode fibers,” in ECOC’83—Ninth European Conference on Optical Communication, 23–26 October 1983, Geneva (1983), pp. 417–420.
  9. D. R. Wisely, “32 channel WDM multiplexer with 1-nm channel spacing and 0.7-nm bandwidth,” Electron. Lett. 27, 520–521 (1991). [CrossRef]
  10. G. R. Chamberlin, A. M. Hill, “Designs for high channel density single-mode wavelength-division-multiplexers,” in Components for Fiber Optics Applications II, Proc. SPIE893, 60–66 (1987).
  11. M. A. Scobey, D. E. Spock, “Passive DWDM components using microplasma optical interference filters,” in Optical Fiber Communication Conference, Vol. 2 of 1996 Technical Digest Series (Optical Society of America, Washington, D.C., 1996, pp. 242–243.
  12. A. Zoller, R. Gotzelmann, K. Matl, D. Cushing, “Temperature-stable bandpass filters deposited with plasma ion-assisted deposition,” Appl. Opt. 35, 5609–5612 (1996). [CrossRef] [PubMed]
  13. Lightwave, Buyer’s Guide Issue113–115 (March1997).
  14. R. W. Gilsdorf, J. C. Palais, “Single-mode fiber coupling efficiency with graded-index rod lenses,” Appl. Opt. 33, 3440–3445 (1994). [CrossRef] [PubMed]
  15. T. Sakamoto, “Coupling characteristic analysis of single-mode and multimode optical-fiber connectors using gradient-index-rod lenses,” Appl. Opt. 31, 5184–5190 (1992). [CrossRef] [PubMed]
  16. Selfoc Product Guide (NSG America, Inc., Somerset, N.J., 1992).
  17. A. Gerrand, J. M. Burch, Introduction to Matrix Methods in Optics (Wiley, London, 1975), Chaps. 2 and 3.
  18. H. Kogelnik, “Coupling and conversion coefficients for optical modes,” in Proceedings of the Symposium on Quasi-Optics, Microwave Research Institute Symposium Series, Vol. 14 (Polytechnic, Brooklyn, 1964), pp. 333–347.

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