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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 16 — Aug. 1, 2011
  • pp: 15389–15396

Five-order SRSs and supercontinuum generation from a tapered tellurite microstructured fiber with longitudinally varying dispersion

Meisong Liao, Xin Yan, Weiqing Gao, Zhongchao Duan, Guanshi Qin, Takenobu Suzuki, and Yasutake Ohishi  »View Author Affiliations


Optics Express, Vol. 19, Issue 16, pp. 15389-15396 (2011)
http://dx.doi.org/10.1364/OE.19.015389


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Abstract

We try to obtain stable supercontinuum (SC) generation with broad bandwidth under relative simple pump conditions. We use a 1.3-m-long highly nonlinear tellurite microstructured fiber and pump it by a 15 ps 1064 nm fiber laser. One segment of the fiber is tapered from a core diameter of 3.4 μm to 1.3 μm. For the first time five-order stimulated Raman scatterings (SRSs) are observed for soft glass fibers. SC covering 730-1700 nm is demonstrated with the pump-pulse-energy of several nJ. The mechanisms of SC broadening are mainly SRS, self-phase modulation (SPM) and cross phase modulation (XPM). The tapered segment has two advantages. Firstly it increases the nonlinearity of fiber by several times. Secondly, it acts as a compensation for the dispersion of the untapered segment, and mitigates the walk-off between pump pulse and SRS peaks.

© 2011 OSA

OCIS Codes
(060.2280) Fiber optics and optical communications : Fiber design and fabrication
(190.0190) Nonlinear optics : Nonlinear optics
(320.6629) Ultrafast optics : Supercontinuum generation

ToC Category:
Ultrafast Optics

History
Original Manuscript: March 25, 2011
Revised Manuscript: April 25, 2011
Manuscript Accepted: May 26, 2011
Published: July 27, 2011

Citation
Meisong Liao, Xin Yan, Weiqing Gao, Zhongchao Duan, Guanshi Qin, Takenobu Suzuki, and Yasutake Ohishi, "Five-order SRSs and supercontinuum generation from a tapered tellurite microstructured fiber with longitudinally varying dispersion," Opt. Express 19, 15389-15396 (2011)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-19-16-15389


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