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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 37, Iss. 11 — Jun. 1, 2012
  • pp: 1889–1891

Octave-spanning supercontinuum generation of vortices in an As2S3 ring photonic crystal fiber

Yang Yue, Lin Zhang, Yan Yan, Nisar Ahmed, Jeng-Yuan Yang, Hao Huang, Yongxiong Ren, Sam Dolinar, Moshe Tur, and Alan E. Willner  »View Author Affiliations


Optics Letters, Vol. 37, Issue 11, pp. 1889-1891 (2012)
http://dx.doi.org/10.1364/OL.37.001889


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Abstract

We propose As2S3 ring photonic crystal fiber (PCF) for supercontinuum generation of optical vortex modes. Due to the large material index contrast between As2S3 and air holes in the designed ring PCF, there is a two-orders-of-magnitude improvement of the difference between the effective refractive indices of different vortex modes compared with regular ring fiber. The design freedom of PCFs enables a low dispersion (<60ps/nm/km variation in total) over a 522 nm optical bandwidth. Moreover, the vortex mode has a large nonlinear coefficient of 11.7/W/m at 1550 nm with a small confinement loss of <0.03dB/m up to 2000 nm. An octave-spanning supercontinuum spectrum of the vortex mode is generated from 1196 to 2418 nm at 20dB by launching a 120 fs pulse with a 60 W peak power at 1710 nm into a 1 cm long As2S3 ring PCF.

© 2012 Optical Society of America

OCIS Codes
(060.2420) Fiber optics and optical communications : Fibers, polarization-maintaining
(060.4370) Fiber optics and optical communications : Nonlinear optics, fibers
(060.7140) Fiber optics and optical communications : Ultrafast processes in fibers
(050.4865) Diffraction and gratings : Optical vortices
(060.5295) Fiber optics and optical communications : Photonic crystal fibers
(320.6629) Ultrafast optics : Supercontinuum generation

ToC Category:
Diffraction and Gratings

History
Original Manuscript: March 15, 2012
Revised Manuscript: April 8, 2012
Manuscript Accepted: April 16, 2012
Published: May 23, 2012

Citation
Yang Yue, Lin Zhang, Yan Yan, Nisar Ahmed, Jeng-Yuan Yang, Hao Huang, Yongxiong Ren, Sam Dolinar, Moshe Tur, and Alan E. Willner, "Octave-spanning supercontinuum generation of vortices in an As2S3 ring photonic crystal fiber," Opt. Lett. 37, 1889-1891 (2012)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-37-11-1889

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