Quantum analysis of multi-frequency laser with photonic time crystal

TL;DR

This paper presents a quantum model of a laser incorporating a photonic time crystal to generate multi-frequency laser fields, analyzing lasing conditions, output power, and spectral properties.

Contribution

It introduces a novel quantum theoretical framework for a laser with a photonic time crystal, enabling multi-frequency operation within a small cavity.

Findings

Quantum model of laser with PTC developed

Lasing conditions and output power analyzed

Multi-frequency spectral spikes characterized

Abstract

The present study considers the operation of a laser that incorporates a photonic time crystal (PTC), the purpose of which is to generate a field characterised by multiple widely separated optical frequencies. This laser is the subject of both a proposal and theoretical investigation. The laser comprises an active medium and a PTC within a small cavity constructed from two photonic crystals that are positioned in an overlapping configuration. PTC is modulated by an external field. The spikes in the laser field spectrum are separated by the PTC modulation frequency. The development of a quantum model of the laser with PTC has been achieved, and the analysis of a lasing mode with multi-frequency spikes has been made. The investigation focused on the study of lasing conditions, output power, and the lasing field spectra. The experimental realization of the multi-frequency laser with PTC under realistic conditions is discussed.