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Journal of the Optical Society of America A

Journal of the Optical Society of America A

| OPTICS, IMAGE SCIENCE, AND VISION

  • Vol. 22, Iss. 2 — Feb. 1, 2005
  • pp: 331–334

High-efficiency reflective diffraction gratings in fused silica as (de)multiplexers at 1.55 µm for dense wavelength division multiplexing application

Yanyan Zhang and Changhe Zhou  »View Author Affiliations


JOSA A, Vol. 22, Issue 2, pp. 331-334 (2005)
http://dx.doi.org/10.1364/JOSAA.22.000331


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Abstract

We describe high-efficiency, high-dispersion reflection gratings fabricated in bulk fused silica illuminated by incident lights in the C+L bands as (de)multiplexers for dense wavelength division multiplexing (DWDM) application. Based on the phenomenon of total internal reflection, gratings with optimized profile parameters exhibit diffraction efficiencies of more than 90% under TM- and TE-polarized incident lights for 101-nm spectral bandwidths (1520–1620 nm) and can reach an efficiency of greater than 97% for both polarizations at a wavelength of 1550 nm. Without loss of metal absorption, without coating of dielectric film layers, and independent of tooth shape, this new kind of grating should be of great interest for DWDM application.

© 2005 Optical Society of America

OCIS Codes
(000.4430) General : Numerical approximation and analysis
(050.1950) Diffraction and gratings : Diffraction gratings
(060.1810) Fiber optics and optical communications : Buffers, couplers, routers, switches, and multiplexers
(060.4510) Fiber optics and optical communications : Optical communications
(260.6970) Physical optics : Total internal reflection

History
Original Manuscript: August 27, 2004
Manuscript Accepted: September 15, 2004
Published: February 1, 2005

Citation
Yanyan Zhang and Changhe Zhou, "High-efficiency reflective diffraction gratings in fused silica as (de)multiplexers at 1.55 µm for dense wavelength division multiplexing application," J. Opt. Soc. Am. A 22, 331-334 (2005)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-22-2-331


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