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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 14 — Jul. 6, 2009
  • pp: 11782–11793

Optics InfoBase > Optics Express > Volume 17 > Issue 14 > Page 11782

Extremely large mode area optical fibers formed by thermal stress

Libin Fu, Hugh A. McKay, and Liang Dong  »View Author Affiliations


Optics Express, Vol. 17, Issue 14, pp. 11782-11793 (2009)
http://dx.doi.org/10.1364/OE.17.011782


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Abstract

We report a strictly single-mode optical fiber with a record core diameter of 84µm and an effective mode area of ~3600µm2 at 1µm. We also demonstrate fundamental mode operation in an optical fiber with a record core diameter of 252µm and a measured mode field diameter (MFD) of 149µm at 1.03µm, i.e. an effective mode area (Aeff ) of ~17,400µm2 at 1.03µm, an Aeff of 31,600µm2 at 1.5µm. All these fibers have near parabolic index profiles with a peak refractive index difference ΔN≈~6×10-5, i.e. a record low numerical aperture (NA) of ~0.013 in an optical fiber. This low refractive index difference was achieved by frozen-in thermal stress as a result of two different types of glass in the fibers. When the fundamental mode was excited in the 252µm core fiber using a 1.03µm ASE source, the output beam was measured to have M2 x =1.04 and M2 y =1.18.

© 2009 OSA

OCIS Codes
(060.2280) Fiber optics and optical communications : Fiber design and fabrication
(060.2430) Fiber optics and optical communications : Fibers, single-mode
(190.4370) Nonlinear optics : Nonlinear optics, fibers

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: April 24, 2009
Revised Manuscript: June 22, 2009
Manuscript Accepted: June 24, 2009
Published: June 29, 2009

Citation
Libin Fu, Hugh A. McKay, and Liang Dong, "Extremely large mode area optical fibers formed by thermal stress," Opt. Express 17, 11782-11793 (2009)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-17-14-11782


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