Abstract

We consider a phonon laser based on an optomechanical system consisting of two optical modes interacting with each other via a phononic mode. An external wave exciting one of the optical modes plays the role of the pumping. We show that in this system at some amplitude of the external wave an exceptional point exists. When the external wave amplitude is less than one corresponding to the exceptional point, the splitting of the eigenfrequencies takes place. We demonstrate that in this case, the periodic modulation of the external wave amplitude can result in simultaneous generation of photons and phonons even below the threshold of optomechanical instability.

© 2023 Optica Publishing Group

Optomechanical entanglement affected by exceptional point in a WGM resonator system

Zigeng Li, Xiaomiao Li, and Xiaolan Zhong
Opt. Express 31(12) 19382-19391 (2023)

Hard excitation mode of a system with optomechanical instability

Artem Mukhamedyanov, Alexander A. Zyablovsky, and Evgeny S. Andrianov
Opt. Lett. 49(4) 782-785 (2024)

Exceptional points in polaritonic cavities and subthreshold Fabry–Perot lasers

Jacob B. Khurgin
Optica 7(8) 1015-1023 (2020)

Nonreciprocal topological mode conversion by encircling an exceptional point in dynamic waveguides

Qingjie Liu, Tiantian Wang, Quan Lei, Dong Zhao, and Shaolin Ke
Opt. Lett. 48(15) 4089-4092 (2023)

Fraction-order sideband generation in an optomechanical system

Jun-Hao Liu, Guangqiang He, Qin Wu, Ya-Fei Yu, Jin-Dong Wang, and Zhi-Ming Zhang
Opt. Lett. 45(18) 5169-5172 (2020)