Compact interferometers, called phasemeters, make it possible to operate over a large
range while ensuring a high resolution. Such performance is required for the stabilization of …

Displacement measuring sensors play an essential role in all aspects of dimensional
metrology. They can be used for direct displacement measurements but more often they are …

We demonstrate a quadrature phase-shifted optical demodulation scheme for low-
coherence fiber-optic Fabry-Perot interferometric sensors. The main part of the demodulator …

The optical path length stability of the off-axis four-reflection telescope is one of the key
technical indicators for the TianQin gravitational wave detection system. In the MHz …

An interferometer technique based on temporal coherence function of femtosecond pulses is
demonstrated for practical distance measurement. Here, the pulse-to-pulse alignment is …

We present a low-cost and wide-applicability method for measuring the zero-crossing
temperature (ZCT) of a ultralow expansion (ULE) cavity by using a scanning transfer cavity …

This study numerically explores the synchronization dynamics of a one-dimension edge-
emitting laser array monolithically-integrated with an external cold cavity comprehensively …

Tracing a resonance frequency of a high quality factor (Q) optical cavity facilitates
subpicometer displacement measurements of the optical cavity via Pound–Drever–Hall …

Fabry–Perot (FP) interferometry is a traceable high-resolution method for displacement
metrology that has no nonlinearity. Compared with the single resonance tracking FP …

A novel differential Michelson laser interferometer is proposed to eliminate the influence of
environmental fluctuations for nanometer displacement measurement. This differential …