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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 36, Iss. 14 — Jul. 15, 2011
  • pp: 2695–2697

Ultrawideband monocycle pulse generation based on delayed interference of π / 2 phase-shift keying signal

Yongheng Dai, Jiangbing Du, Xuelei Fu, Gordon K. P. Lei, and Chester Shu  »View Author Affiliations

Optics Letters, Vol. 36, Issue 14, pp. 2695-2697 (2011)

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We propose a scheme to generate ultrawideband (UWB) monocycle pulses using delayed interference of a π / 2 phase-shift keying (PSK) signal. The PSK signal is generated with an optical phase modulator. A fiber-based delay interferometer is used to provide the delay together with a ± π / 2 phase shift between the signals in its two arms before the interference. The two opposite phase shifts correspond to the generation of a pair of polarity-reversed UWB monocycle pulses. The full width at half maximum of the pulses is ~ 68 ps and the 10 dB fractional bandwidth is 168%.

© 2011 Optical Society of America

OCIS Codes
(060.2310) Fiber optics and optical communications : Fiber optics
(060.5060) Fiber optics and optical communications : Phase modulation
(350.4010) Other areas of optics : Microwaves
(060.5625) Fiber optics and optical communications : Radio frequency photonics

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: April 15, 2011
Revised Manuscript: June 3, 2011
Manuscript Accepted: June 21, 2011
Published: July 14, 2011

Yongheng Dai, Jiangbing Du, Xuelei Fu, Gordon K. P. Lei, and Chester Shu, "Ultrawideband monocycle pulse generation based on delayed interference ofπ/2 phase-shift keying signal," Opt. Lett. 36, 2695-2697 (2011)

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