Open AccessGraphdiyne-deposited microfiber structure all-optical modulator at the telecommunication band
Author(s) -
Kuokuo Zhang,
Wenli Bao,
Xing Chen,
Shunbin Lu
Publication year - 2021
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.443217
Subject(s) - microfiber , materials science , optics , signal (programming language) , spatial light modulator , phase modulation , optical modulator , optoelectronics , phase (matter) , electro optic modulator , wavelength , optical communication , modulation (music) , physics , phase noise , computer science , quantum mechanics , acoustics , composite material , programming language
All-optical modulator is a crucial device in next generation of all-optical communications, interconnects, and signal processing. Here, we demonstrate an all-optical phase modulator with graphdiyne (GDY)-deposited microfiber structure. The phase shift of the signal light can be readily controlled by pump light by thermo-optic effect. This all-optical modulator can achieve a phase shift slope of 0.0296 π·mW -1 and a rising time of 5.48 ms at 25 Hz (3 ms, 50 Hz). Modes distributions in GDY-deposited microfiber at different wavelength are numerical analyzed and the normalized phase conversion efficiency of GDY are calculated. The results show that GDY has a considerable normalized phase conversion efficiency of 0.1644 π·mW -1 ·mm -1 , which is higher than that of graphene, MXene and WS 2 based all-optical modulators. This work proves the potential of GDY in all-optical modulator device at telecommunication band and provides a support to all-optical signal processing systems.