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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 15, Iss. 8 — Apr. 16, 2007
  • pp: 4929–4934

Wavelength-transparent nonlinear optical gate based on self-seeded gain modulation in folded tandem-SOA

Young Jin Jung, Jonghan Park, and Namkyoo Park  »View Author Affiliations

Optics Express, Vol. 15, Issue 8, pp. 4929-4934 (2007)

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In this paper, an all-optical nonlinear gate employing a folded tandem-SOA structure is proposed. With a partial reflection mirror for the amplified signal, we achieve a self-seeded gain modulation effect in the folded tandem-SOA, thus eliminating an external saturating source required for the conventional tandem-SOA optical gate. The performance analysis of the proposed device as a 2R regenerator / logic gates (NOR) shows excellent compatibility with the conventional structure, but in a highly integrated form with added benefit of wavelength transparency over wide spectral bandwidth (>100nm). Studies also have been carried out to investigate optimum operation condition of the device as a function of input wavelength and signal input power.

© 2007 Optical Society of America

OCIS Codes
(130.3750) Integrated optics : Optical logic devices
(200.3760) Optics in computing : Logic-based optical processing
(200.4660) Optics in computing : Optical logic
(250.5980) Optoelectronics : Semiconductor optical amplifiers

ToC Category:
Integrated Optics

Original Manuscript: December 19, 2006
Revised Manuscript: April 5, 2007
Manuscript Accepted: April 5, 2007
Published: April 9, 2007

Young Jin Jung, Jonghan Park, and Namkyoo Park, "Wavelength-transparent nonlinear optical gate based on self-seeded gain modulation in folded tandem-SOA," Opt. Express 15, 4929-4934 (2007)

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