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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 8 — Apr. 15, 2014
  • pp: 2366–2369

Thermally driven continuous-wave and pulsed optical vortex

Yitian Ding, Miaomiao Xu, Yongguang Zhao, Haohai Yu, Huaijin Zhang, Zhengping Wang, and Jiyang Wang  »View Author Affiliations


Optics Letters, Vol. 39, Issue 8, pp. 2366-2369 (2014)
http://dx.doi.org/10.1364/OL.39.002366


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Abstract

We demonstrated a continuous-wave (cw) and pulsed optical vortex with topological charges driven by heat generated during the lasing process without introducing the astigmatism effect and reducing lasing efficiency. During the lasing process, the topological charges were changeable by the thermal-induced lens and selected by the mode-matching between the pump and oscillating beams. With a graphene sample as the saturable absorber, a pulsed optical vortex was achieved at a wavelength of 1.36 μm, which identified that graphene could be used as a pulse modulator for the generation of a pulsed optical vortex. Thermally driven cw and pulsed optical vortexes should have various promising applications based on the compact structure, changeable topological charges, and specific wavelength.

© 2014 Optical Society of America

OCIS Codes
(070.2580) Fourier optics and signal processing : Paraxial wave optics
(140.3480) Lasers and laser optics : Lasers, diode-pumped
(140.3538) Lasers and laser optics : Lasers, pulsed
(050.4865) Diffraction and gratings : Optical vortices

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: November 21, 2013
Revised Manuscript: March 16, 2014
Manuscript Accepted: March 17, 2014
Published: April 9, 2014

Citation
Yitian Ding, Miaomiao Xu, Yongguang Zhao, Haohai Yu, Huaijin Zhang, Zhengping Wang, and Jiyang Wang, "Thermally driven continuous-wave and pulsed optical vortex," Opt. Lett. 39, 2366-2369 (2014)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-39-8-2366

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