To sample optical signals with high sampling efficiency with simple low-cost constitution and to stably obtain waveform information of high-speed optical signals.
A carbon nanotube 23 is used as a sampling element of an optical sampling device 22, and the optical signal Px to be monitored is made incident to one optical terminal 23a. Sampling optical pulse Ps emitted from an optical pulse generator 21 for sampling pulse is made incident to the other optical terminal 23b of the carbon nanotube element 23 through an optical coupler 25, and an absorption factor to the optical signal Px is lowered by supersaturated absorption characteristics generated at the incidence of the sampling optical pulse Ps to carry out emission from the other optical terminal 23b for sampling.
TANIMOTO TAKAO
MIYATA MOTOHISA
| JP2002214050A | 2002-07-31 | |||
| JP2000347231A | 2000-12-15 | |||
| JPH11194374A | 1999-07-21 | |||
| JP3796357B2 | 2006-07-12 |
| WO2006003338A1 | 2006-01-12 |
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