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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 4 — Feb. 16, 2009
  • pp: 2188–2197

Greatly enhanced slow and fast light in chirped-pulse semiconductor optical amplifiers: Theory and experiments

Bala Pesala, Forrest Sedgwick, Alexander V. Uskov, and Connie Chang-Hasnain  »View Author Affiliations


Optics Express, Vol. 17, Issue 4, pp. 2188-2197 (2009)
http://dx.doi.org/10.1364/OE.17.002188


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Abstract

Chirped pulse scheme is shown to be highly effective to attain large tunable time shifts via slow and fast light for an ultra-short pulse through a semiconductor optical amplifier (SOA). We show for the first time that advance can be turned into delay by simply reversing the sign of the chirp. A large continuously tunable advance-bandwidth product (ABP) of 4.7 and delay-bandwidth product (DBP) of 4.0 are achieved for a negatively and positively chirped pulse in the same device, respectively. We show that the tunable time shift is a direct result of self-phase modulation (SPM). Theoretical simulation agrees well with experimental results. Further, our simulation results show that by proper optimization of the SOA and chirper design, a large continuously tunable DBP of 55 can be achieved.

© 2009 Optical Society of America

OCIS Codes
(230.1150) Optical devices : All-optical devices
(230.4320) Optical devices : Nonlinear optical devices

ToC Category:
Slow and Fast Light

History
Original Manuscript: November 21, 2008
Revised Manuscript: January 26, 2009
Manuscript Accepted: January 26, 2009
Published: February 3, 2009

Citation
Bala Pesala, Forrest G. Sedgwick, Alexander V. Uskov, and Connie Chang-Hasnain, "Greatly enhanced slow and fast light in chirped pulse semiconductor optical amplifiers: Theory and experiments," Opt. Express 17, 2188-2197 (2009)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-17-4-2188


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