Chinese Optics Letters, 2020, 18 (6): 060603, Published Online: May. 14, 2020
All-optical inverter based on carbon nanotube-polyvinyl alcohol thin film Download: 735次
Abstract
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 ~55 μs (44 μs) for 1550 nm signal pulses and ~7 kHz response bandwidth.
Zhengpeng Shao, Kan Wu, Jianping Chen. All-optical inverter based on carbon nanotube-polyvinyl alcohol thin film[J]. Chinese Optics Letters, 2020, 18(6): 060603.