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Optics Letters

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  • Vol. 14, Iss. 21 — Nov. 1, 1989
  • pp: 1231–1233

Radiation loss in bent step-index slab waveguides

Y.H. Cheng and W.G. Lin  »View Author Affiliations


Optics Letters, Vol. 14, Issue 21, pp. 1231-1233 (1989)
http://dx.doi.org/10.1364/OL.14.001231


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Abstract

Based on the exact scalar wave equations of bent slab waveguides, locally leaky-mode attenuation constants for both TE and TM modes are derived by using the WKB tunneling theory. Changes in propagation constant due to waveguide bending are considered in our calculation. Under some assumptions, our results are found to be identical to other results obtained using entirely different methods.

© 1989 Optical Society of America

History
Original Manuscript: May 16, 1989
Manuscript Accepted: August 8, 1989
Published: November 1, 1989

Citation
Y.H. Cheng and W.G. Lin, "Radiation loss in bent step-index slab waveguides," Opt. Lett. 14, 1231-1233 (1989)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-14-21-1231


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References

  1. D. Marcuse, Light Transmission Optics (Van Nostrand, New York, 1982), p. 406.
  2. E. A. J. Marcatili, Bell Syst. Tech. J. 48, 2103 (1969).
  3. E. Kuester, D. C. Chang, IEEE J. Quantum Electron. QE-11, 903 (1975). [CrossRef]
  4. Y. Takuma, M. Miyagi, S. Kawakami, Appl. Opt. 20, 2291 (1981). [CrossRef] [PubMed]
  5. Y. H. Cheng, W. G. Lin, Microwave Opt. Technol. Lett. 1, 329 (1988). [CrossRef]
  6. Y. H. Cheng, W. G. Lin, Microwave Opt. Technol. Lett. 2, 285 (1989). [CrossRef]
  7. J. D. Love, C. Winkler, J. Opt. Soc. Am. 67, 1627 (1977). [CrossRef]
  8. That is, the conditions βe/[n2k0(1 + a/Rc)] > 1 and βe/[n1k0(1 − a/Rc)] < 1 are both required for the propagation constant of a locally tunneling leaky mode in bent dielectric optical waveguides.

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