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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 15, Iss. 22 — Oct. 29, 2007
  • pp: 14667–14672

Switchable optical UWB monocycle and doublet generation using a reconfigurable photonic microwave delay-line filter

Qing Wang and Jianping Yao  »View Author Affiliations


Optics Express, Vol. 15, Issue 22, pp. 14667-14672 (2007)
http://dx.doi.org/10.1364/OE.15.014667


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Abstract

Optically switchable Ultra-Wideband (UWB) monocycle and doublet pulse generation using an optically reconfigurable photonic microwave delay-line filter is proposed and demonstrated. The microwave filter can be reconfigured as a two- or three-tap microwave filter with coefficients of (1, -1) or (1, -2, 1). The function of the two- or three-tap microwave filter is equivalent to an operation of a first- or second-order difference, which can be approximated as a first- or second-order derivative. When a Gaussian pulse is inputted to the two- or three-tap microwave delay-line filter, a Gaussian monocycle or doublet pulse is generated. The proposed photonic microwave delay-line filter is implemented using a polarization modulator (PolM), a length of polarization maintaining fiber (PMF), and a balanced photo-detector (BPD). In the experiment, Gaussian monocycle and doublet pulses with a fractional bandwidth of about 170% and 130% are generated. The switchability of the proposed UWB pulse generator in pulse shape and polarity is also experimentally demonstrated.

© 2007 Optical Society of America

OCIS Codes
(060.0060) Fiber optics and optical communications : Fiber optics and optical communications
(060.2310) Fiber optics and optical communications : Fiber optics
(060.2330) Fiber optics and optical communications : Fiber optics communications
(070.1170) Fourier optics and signal processing : Analog optical signal processing

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: August 10, 2007
Revised Manuscript: October 13, 2007
Manuscript Accepted: October 19, 2007
Published: October 23, 2007

Citation
Qing Wang and Jianping Yao, "Switchable optical UWB monocycle and doublet generation using a reconfigurable photonic microwave delay-line filter," Opt. Express 15, 14667-14672 (2007)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-15-22-14667


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References

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