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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 24 — Nov. 22, 2010
  • pp: 24588–24594

All-optical UWB generation and modulation using SOA-XPM effect and DWDM-based multi-channel frequency discrimination

Fei Wang, Jianji Dong, Enming Xu, and Xinliang Zhang  »View Author Affiliations

Optics Express, Vol. 18, Issue 24, pp. 24588-24594 (2010)

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An all-optical UWB pulses generation and modulation scheme using cross phase modulation (XPM) effect of semiconductor optical amplifier (SOA) and DWDM-based multi-channel frequency discrimination is proposed and demonstrated, which has potential application in multiuser UWB-Over-Fiber communication systems. When a Gaussian pulse light and a wavelength-tunable CW probe light are together injected into the SOA, the probe light out from the SOA will have a temporal chirp due to SOA-XPM effect. When the chirped probe light is tuned to the slopes of single DWDM channel transmittance curve, the optical phase modulation to intensity modulation conversion is achieved at DWDM that serves as a multi-channel frequency discriminator, the inverted polarity Gaussian monocycle and doublet pulse is detected by a photodetector, respectively. If the probe lights are simultaneously aimed to different slopes of several DWDM channels, multi-channel or binary-phase-coded UWB signal generation can be acquired. Using proposed scheme, pulse amplitude modulation (PAM), pulse polarity modulation (PPM) and pulse shape modulation (PSM) to UWB pulses also can be conveniently realized.

© 2010 OSA

OCIS Codes
(060.2330) Fiber optics and optical communications : Fiber optics communications
(250.4745) Optoelectronics : Optical processing devices
(060.5625) Fiber optics and optical communications : Radio frequency photonics

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: August 25, 2010
Revised Manuscript: October 7, 2010
Manuscript Accepted: October 12, 2010
Published: November 10, 2010

Fei Wang, Jianji Dong, Enming Xu, and Xinliang Zhang, "All-optical UWB generation and modulation using SOA-XPM effect and DWDM-based multi-channel frequency discrimination," Opt. Express 18, 24588-24594 (2010)

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