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Optics Letters

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  • Vol. 19, Iss. 20 — Oct. 15, 1994
  • pp: 1633–1635

Improved expression for the time-bandwidth product of picosecond optical pulses from gain-switched semiconductor lasers

Kenji Wada and Yoshio Cho  »View Author Affiliations


Optics Letters, Vol. 19, Issue 20, pp. 1633-1635 (1994)
http://dx.doi.org/10.1364/OL.19.001633


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Abstract

An improved expression for the time-bandwidth product (ΔtΔf) of picosecond optical pulses from gain-switched semiconductor lasers was obtained by a series of numerical simulations based on rate equations without making any assumption for a particular pulse shape and chirp condition. The relation can be expressed by Δ t Δ f = 0.31 1 + ( 1.64 α ) 2 as a function of the linewidth-enhancement factor α. The influence of the spontaneous emission factor β on the relation is also examined.

© 1994 Optical Society of America

History
Original Manuscript: March 17, 1994
Published: October 15, 1994

Citation
Kenji Wada and Yoshio Cho, "Improved expression for the time-bandwidth product of picosecond optical pulses from gain-switched semiconductor lasers," Opt. Lett. 19, 1633-1635 (1994)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-19-20-1633


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