Modal coupling in surface-corrugated long-period-grating fiber tapers
Optics Letters, Vol. 33, Issue 7, pp. 717-719 (2008)
http://dx.doi.org/10.1364/OL.33.000717
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Abstract
We describe the properties of a surface-corrugated long-period-grating fiber taper fabricated using contact optical lithography and wet etching techniques. The preservation of cylindrical symmetry in this device facilitates investigation of the modal behavior. Comparison of the measured and calculated transmission spectra reveals that the widely used coupled-mode theory is not applicable. Instead, a mode-projection model, in which modal propagation and coupling are treated separately within the grating, explains the experiments very well.
© 2008 Optical Society of America
OCIS Codes
(050.2770) Diffraction and gratings : Gratings
(060.2340) Fiber optics and optical communications : Fiber optics components
(230.4000) Optical devices : Microstructure fabrication
ToC Category:
Fiber Optics and Optical Communications
History
Original Manuscript: January 4, 2008
Revised Manuscript: February 16, 2008
Manuscript Accepted: February 17, 2008
Published: March 31, 2008
Citation
W. Ding and S. R. Andrews, "Modal coupling in surface-corrugated long-period-grating fiber tapers," Opt. Lett. 33, 717-719 (2008)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-33-7-717
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