title: Precision measurement of ultralow losses of an asymmetric optical microcavity.
abstract: The losses of the transmission, absorption, and scattering of optical mirrors govern the extraction efficiency of a nonclassical state that is generated inside a cavity. By measuring the reflectivities and transmittances and the matching factors from both sides of a super-mirror-made microcavity at various mode-matching efficiencies, the transmission losses and the unwanted losses, including the absorption and scatter losses, of the left and right cavity mirrors were both determined at the parts-per-million level.
authors.affiliation: State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Opto-Electronics, Shanxi University, Taiyuan, China.
authors.forename: Gang
authors.initials: G
authors.lastname: Li
authors.forename: Yuchi
authors.initials: Y
authors.lastname: Zhang
authors.forename: Yuan
authors.initials: Y
authors.lastname: Li
authors.forename: Xiaoyong
authors.initials: X
authors.lastname: Wang
authors.forename: Jing
authors.initials: J
authors.lastname: Zhang
authors.forename: Junmin
authors.initials: J
authors.lastname: Wang
authors.forename: Tiancai
authors.initials: T
authors.lastname: Zhang