Ultrafast 168 GHz 1.5 ps 1 fJ Symmetric-Mach-Zehnder-Type All-Optical Semiconductor Switch
- 1 August 2000
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 39 (8A) , L806-808
- https://doi.org/10.1143/jjap.39.l806
Abstract
We report on the ultrahigh-repetition all-optical switching of a semiconductor-optical-amplifier-based symmetric-Mach-Zehnder-type switch. Record high 168 GHz, 1.5-ps-wide, 10-dB-extinction switch windows were observed. This repetition rate is ten times higher than the semiconductor optical amplifier's cutoff frequency. The control optical pulse energy used was a record low 1 fJ (average power=170 µW). Clearly isolated 168 GHz components were also observed in the output pulses' optical spectrum, which was in contrast to the continuum-like spectrum of the input pulses.Keywords
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