Work

Fast and Accurate Extraction of Ultra-High Quality Factor from Cavity Ring-Down Measurement

Year: 2024

Type: conference-paper

Abstract: In this letter, we clarify the basic property of cavity ring-down and present a specified algorithm that enables extraction of the overall quality factor, as well as the intrinsic loss and coupling state of UHQ cavities with superior fidelity and simplicity than prior schemes. First, we conduct detailed analysis on how to correctly extract the photon lifetime$\tau_{\mathrm{P}}$from the cavity ring-down. Then we revisit the ring down measurement and demonstrate a step-by-step recipe to derive the quality factor and actual coupling state of a fiber cavity. Finally, we set up an experiment to verify the validity and feasibility of the method. Our study provides useful technological tools to facilitate the design and implementation of UHQ fiber cavities for ultra-stable lasers, reference cavities, and ultranarrow optical filters.

DOI: 10.1109/acp/ipoc63121.2024.10809760

Authors: Yanping Yang, Shihan Liu, Huashun Wen, Yong Geng, Heng Zhou

Institutions: University of Electronic Science and Technology of China, Chinese Academy of Sciences, State Key Laboratory on Integrated Optoelectronics

Language: English

Topic: Photonic and Optical Devices

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: green

Funders: National Natural Science Foundation of China, State Key Laboratory of Advanced Optical Communication Systems and Networks, Sichuan Province Science and Technology Support Program

Awards: G2801982986, G4299284174, G4710580177, G5560513930, G706346224, G7333517323, G7385999908

OpenAlex ID: W4405937819

FWCI:

Cites: 14

Cited by:

Related to: 10