22 February 2017 Optical bistability, self-pulsing and XY optimization in silicon micro-rings with active carrier removal
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Abstract
We theoretically study the nonlinear dynamics of silicon ring cavities with active carrier removal. In this system, linear dispersion, Kerr nonlinearity, two-photon absorption, and free-carrier dispersion / absorption play a key role in the dynamics and the steady-state behavior of the device. Placing the cavity inside a reverse-biased p-i-n junction allows one to reach a regime where both optical bistability and limit-cycle oscillations are accessible. Based on these phenomena, we propose and simulate a free-carrier based random number generator and an "Ising machine", consisting of interconnected ring cavities, which searches for the ground state of the NP-hard Ising XY problem.
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Ryan Hamerly, Dodd Gray, Christopher Rogers, Levon Mirzoyan, Meysam Namdari, Kambiz Jamshidi, "Optical bistability, self-pulsing and XY optimization in silicon micro-rings with active carrier removal", Proc. SPIE 10098, Physics and Simulation of Optoelectronic Devices XXV, 100980D (22 February 2017); doi: 10.1117/12.2251642; https://doi.org/10.1117/12.2251642
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