A graphene-based silicon waveguide power splitter with tunable splitting ratio

Zhaoyuan Chen; Jun Xu; Yang Gao; Chenghunyi Yang

doi:10.3969/j.issn.1007-5461. 2020.02.018

[1] Wang Y, Gao S, Wang K, et al. Ultra-broadband and low-loss 3 dB optical power splitter based on adiabatic tapered silicon waveguides [J]. Optics Letters, 2016, 41(9): 2053-2056.

[2] Thapliya R, Kikuchi T, Nakamura S. Tunable power splitter based on an electro-optic multimode interference device [J]. Applied Optics, 2007, 4(19): 4155-4161.

[3] Deng X L, Yan L S, Jiang H Y, et al. Polarization-insensitive and broadband optical power splitter with a tunable power splitting ratio [J]. IEEE Photonics Journal, 2017, 9(3): 1-9.

[4] Ye S, Wang Z, Tang L, et al. Electro-absorption optical modulator using dual-graphene-on-graphene configuration [J]. Optics Express, 2014, 22(21): 26173-26180.

[5] Bolotin K I, Sikes K J, Jiang Z, et al. Ultrahigh electron mobility in suspended graphene [J]. Solid State Communications, 2008, 14(9): 351-355.

[6] Gosciniak J, Tan D T H. Theoretical investigation of graphene-based photonic modulators [J]. Scientific Reports, 2013, 3: 1897.

[7] Okamoto K. Fundamentals of Optical Waveguides [M]. 2nd Edition, Academic Press, 2006.

[8] Li Q, Han J H, Ho C P, et al. Ultra-power-efficient 2×2 Si Mach-Zehnder interferometer optical switch based on III-V/Si hybrid MOS phase shifter [J]. Optics Express, 2018, 2(26): 035003.

[9] Zhong H, Zhang Z, Chen B, et al. Realization of low contact resistance close to theoretical limit in graphene transistors [J]. Nano Research, 2015, 8(5): 1669-1679.

[10] Cai W, Zhu Y, Li X, et al. Large area few-layer graphene/graphite films as transparent thin conducting electrodes [J]. Applied Physics Letters, 2009, 95(12): 123115.

[11] Koester S J, Li M. High-speed waveguide-coupled graphene-on-graphene optical modulators [J]. Applied Physics Letters, 2012, 100(17): 171107.