Exceptional points and the ring laser gyroscope

• 作者: DAVID SMITH JAMES HENDRIE JEAN-CLAUDE DIELS LUKE HORSTMAN NING HSU
• 来源期刊: 光子学研究:英文版
• 学科: 工学
• 关键词: LASER exceptional CONSERVATIVE
• 年，卷（期）: 2020,（3）
• 页码范围: 252-256
• 页数: 5页
• 分类号: TN2

摘要

An equivalence is made between the exceptional points proposed by the field of non-Hermitian quantum mechanics and the dead band observed in laser gyroscopes.The sensitivity enhancement near this exceptional point is plagued by increased uncertainty due to broadening of the beat-note bandwidth.Also,near the dead band the gyroscope response is caused by Rabi intensity oscillations and not solely by a phase modulation.Finally,a distinction is made between conservative and non-conservative coupling.