An exact analytical expression for the time–bandwidth product ΔtΔf of chirped sech2 pulses is derived. The relation can be expressed by ΔtΔf = 0.1786 arcosh(cosh πα + 2) as a function of the laser’s phase–amplitude coupling factor α. An experimental measurement of the α factor that relies on this formula is discussed.
© 1995 Optical Society of America
Original Manuscript: January 27, 1995
Published: May 15, 1995
P. Lazaridis, G. Debarge, and P. Gallion, "Time–bandwidth product of chirped sech2 pulses: application to phase–amplitude-coupling factor measurement," Opt. Lett. 20, 1160-1162 (1995)