Title :
Use of femtosecond square pulses to avoid pulse breakup in all-optical switching
Author :
Weiner, Andrew M. ; Silberberg, Yaron ; Fouckhardt, Henning ; Leaird, Danel E. ; Saifi, M.A. ; Andrejco, M.J. ; Smith, Peter W.
Author_Institution :
Bellcore, Red Bank, NJ, USA
fDate :
12/1/1989 12:00:00 AM
Abstract :
The authors report measurements of ultrafast all-optical switching in dual-core fiber nonlinear couplers. By performing the measurements with square optical pulses, the pulse breakup which occurs in experiments performed by using conventional bell-shaped pulses is minimized. Compared to measurements performed by using conventional bell-shaped pulses, the measurements yield decreased switching power, a sharper switching transition, and improved power transfer. It is concluded that square pulse switching can be utilized to enhance the switching performance of any ultrafast all-optical switching device triggered by instantaneous intensity
Keywords :
fibre optics; high-speed optical techniques; nonlinear optics; optical couplers; optical fibres; optical switches; all-optical switching; conventional bell-shaped pulses; dual-core fiber nonlinear couplers; femtosecond square pulses; instantaneous intensity; power transfer; pulse breakup; sharper switching transition; square pulse switching; switching performance; switching power; ultrafast all-optical switching; Communication switching; Glass; Optical fiber couplers; Optical fiber devices; Optical fiber polarization; Optical fibers; Optical pulses; Pulse measurements; Switches; Ultrafast optics;
Journal_Title :
Quantum Electronics, IEEE Journal of
