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Journal of the Optical Society of America A

Journal of the Optical Society of America A


  • Vol. 18, Iss. 5 — May. 1, 2001
  • pp: 1176–1185

Fiber mode conversion with tilted gratings in an optical fiber

Kyung Shik Lee and Turan Erdogan  »View Author Affiliations

JOSA A, Vol. 18, Issue 5, pp. 1176-1185 (2001)

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The mode coupling in double-sided tilted gratings between the LP01 and LP11 modes is analyzed for three different excitation conditions. It is found that a number of modes, including various LP11q modes with different polarization states and TE01,TM01, and HE21 modes, can be formed through the mode conversion process in the gratings and with a linear combination of four different LP11 modes. Efficient single-sided and double-sided tilted gratings are demonstrated. The tilted gratings presented exhibit LP01-to-LP11 mode coupling over a spectral width as wide as 160 nm. The transmission spectra of the tilted fiber gratings agree well with the spectrum predicted by the coupled-mode analysis.

© 2001 Optical Society of America

OCIS Codes
(050.2770) Diffraction and gratings : Gratings
(060.0060) Fiber optics and optical communications : Fiber optics and optical communications
(060.2340) Fiber optics and optical communications : Fiber optics components

Original Manuscript: June 27, 2000
Revised Manuscript: October 11, 2000
Manuscript Accepted: November 7, 2000
Published: May 1, 2001

Kyung Shik Lee and Turan Erdogan, "Fiber mode conversion with tilted gratings in an optical fiber," J. Opt. Soc. Am. A 18, 1176-1185 (2001)

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