All-optical light control plays an important role in optical signal processing and communications.In this Letter,we demonstrate an all-optical inverter using carbon nanotube(CNT)-polyvinyl alcohol(PVA)thin film and ob...All-optical light control plays an important role in optical signal processing and communications.In this Letter,we demonstrate an all-optical inverter using carbon nanotube(CNT)-polyvinyl alcohol(PVA)thin film and obtain a long-time stable output due to the environmental insensitivity of the device.The thermo-optic effect in the CNT-PVA thin film generates a thermal lens and modifies the beam propagation in the thin film.The obtained all-optical inverter has a front(trailing)time constant of∼55μs(44μs)for 1550 nm signal pulses and∼7 kHz response bandwidth.展开更多
基金This work was supported by the National Natural Science Foundation of China(NSFC)(Nos.61922056 and 61875122).
文摘All-optical light control plays an important role in optical signal processing and communications.In this Letter,we demonstrate an all-optical inverter using carbon nanotube(CNT)-polyvinyl alcohol(PVA)thin film and obtain a long-time stable output due to the environmental insensitivity of the device.The thermo-optic effect in the CNT-PVA thin film generates a thermal lens and modifies the beam propagation in the thin film.The obtained all-optical inverter has a front(trailing)time constant of∼55μs(44μs)for 1550 nm signal pulses and∼7 kHz response bandwidth.
