Abstract

We present an experimental study of the nonlinear absorption of graphene-on-silicon waveguides. The wavelength dependence of absorption saturation from a narrow linewidth optical pump is measured. Spectral hole burning (SHB) introduces a decrease in the probe absorption near the pump wavelength, which may be distinguished from the free carrier absorption (FCA) by using the time dependence of the buildup of the free carrier population. Beyond SHB bandwidth, only FCA dominates the waveguide loss. The spectral bandwidth of absorption bleaching from SHB is measured to have a full width at half-maximum of $\sim 12\mathrm{meV}$ ($\sim 20\mathrm{nm}$) at 16.8 dBm pump power.

© 2013 Optical Society of America

High-efficiency and broadband four-wave mixing in a silicon-graphene strip waveguide with a windowed silica top layer

Yuxing Yang, Zhenzhen Xu, Xinhong Jiang, Yu He, Xuhan Guo, Yong Zhang, Ciyuan Qiu, and Yikai Su
Photon. Res. 6(10) 965-970 (2018)

Suppression of free carrier absorption in silicon using multislot SiO₂/nc-Si waveguides

Yijing Fu, Halina Krzyżanowska, Karl S. Ni, and Philippe M. Fauchet
Opt. Lett. 38(22) 4849-4852 (2013)

Photothermal nonlinearity and optical bistability in a graphene–silicon waveguide resonator

Cameron Horvath, Daniel Bachman, Rob Indoe, and Vien Van
Opt. Lett. 38(23) 5036-5039 (2013)

Low-chirp high-extinction-ratio modulator based on graphene–silicon waveguide

Longzhi Yang, Ting Hu, Ran Hao, Chen Qiu, Chao Xu, Hui Yu, Yang Xu, Xiaoqing Jiang, Yubo Li, and Jianyi Yang
Opt. Lett. 38(14) 2512-2515 (2013)

Demonstration of a radio-frequency spectrum analyzer based on spectral hole burning

Loïc Ménager, Ivan Lorgeré, Jean-Louis Le Gouët, Daniel Dolfi, and Jean-Pierre Huignard
Opt. Lett. 26(16) 1245-1247 (2001)