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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 52, Iss. 11 — Apr. 10, 2013
  • pp: 2332–2339

Ion-exchanged glass binary phase plates for mode-division multiplexing

Carlos Montero-Orille, Vicente Moreno, Xesús Prieto-Blanco, Eduardo F. Mateo, Ezra Ip, José Crespo, and Jesús Liñares  »View Author Affiliations


Applied Optics, Vol. 52, Issue 11, pp. 2332-2339 (2013)
http://dx.doi.org/10.1364/AO.52.002332


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Abstract

Significant efforts are being made to increase optical network capacity in response to ever-growing data traffic. One promising candidate is mode-division multiplexing (MDM) in few-mode fibers. A fundamental element for MDM is a modal transformer. Modal transformation can be implemented in a free-space basis by using multiregion phase plates. In this work, we show that efficient monolithic binary phase plates can be fabricated by ion exchange in glass and used for MDM tasks. We present an optical characterization method of such plates, which is based on a combination of the inverse Wentzel–Kramers–Brillouin (IWKB) method and Mach–Zehnder interferometric techniques. The IWKB method allows us to design and characterize the phase plates in an easy and fast way, whereas interferometry gives us a precise measurement of the phase step. Far-field optical intensities are measured, and a high-quality mode transformation is confirmed.

© 2013 Optical Society of America

OCIS Codes
(060.4230) Fiber optics and optical communications : Multiplexing
(060.4510) Fiber optics and optical communications : Optical communications
(120.5050) Instrumentation, measurement, and metrology : Phase measurement
(350.3850) Other areas of optics : Materials processing
(130.2755) Integrated optics : Glass waveguides

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: January 14, 2013
Revised Manuscript: March 12, 2013
Manuscript Accepted: March 13, 2013
Published: April 8, 2013

Citation
Carlos Montero-Orille, Vicente Moreno, Xesús Prieto-Blanco, Eduardo F. Mateo, Ezra Ip, José Crespo, and Jesús Liñares, "Ion-exchanged glass binary phase plates for mode-division multiplexing," Appl. Opt. 52, 2332-2339 (2013)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-52-11-2332

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