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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 52, Iss. 31 — Nov. 1, 2013
  • pp: 7512–7516

Photonic generation of ultrawideband signals based on a gain-switched semiconductor laser with optical feedback

Mingjiang Zhang, Ming Liu, Anbang Wang, Yongning Ji, Zhe Ma, Junfeng Jiang, and Tiegen Liu  »View Author Affiliations


Applied Optics, Vol. 52, Issue 31, pp. 7512-7516 (2013)
http://dx.doi.org/10.1364/AO.52.007512


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Abstract

A simple photonic approach to generate ultrawideband (UWB) pulse signals utilizing a gain-switched semiconductor laser with optical feedback is proposed and demonstrated. The RF spectrum of the generated chaotic UWB signals has a 10dB bandwidth of 9 GHz and central frequency of 6.6 GHz (fractional bandwidth of 155%), which is consistent with the Federal Communications Commission indoor mask. The central frequency and 10dB bandwidth can be tuned by adjusting the bias current and feedback strength of the semiconductor laser. After transmission through a 30 km single-mode fiber, the spectrum shape of the chaotic UWB signals is almost unaffected by the chromatic dispersion of the fiber.

© 2013 Optical Society of America

OCIS Codes
(070.4340) Fourier optics and signal processing : Nonlinear optical signal processing
(140.5960) Lasers and laser optics : Semiconductor lasers
(350.4010) Other areas of optics : Microwaves
(060.5625) Fiber optics and optical communications : Radio frequency photonics

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: May 17, 2013
Revised Manuscript: September 28, 2013
Manuscript Accepted: October 7, 2013
Published: October 24, 2013

Citation
Mingjiang Zhang, Ming Liu, Anbang Wang, Yongning Ji, Zhe Ma, Junfeng Jiang, and Tiegen Liu, "Photonic generation of ultrawideband signals based on a gain-switched semiconductor laser with optical feedback," Appl. Opt. 52, 7512-7516 (2013)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-52-31-7512

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