Abstract
All-optical communication technologies require nonlinear optical devices with ultrafast response times, compatible with WDM. Heavy-ion irradiation is an interesting technique for reducing the carrier recombination time in saturable absorbers, because in quantum wells it preserves the excitonic absorption lines up to relatively high irradiation doses[1] and the relaxation time does not saturate at high average carrier generation rates[2].
© 2000 IEEE
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