Optical frequency combs offer an unrivalled degree of frequency measurement precision
that underpins the advance of modern technology in both fundamental science and …

Optical microcombs represent a new paradigm for generating laser frequency combs based
on compact chip-scale devices, which have underpinned many modern technological …

As a fundamental optical approach to interferometry, Sagnac interference has been widely
used for reflection manipulation, precision measurements, and spectral engineering in …

Photonics on thin-film lithium niobate (TFLN) has emerged as one of the most pursued
disciplines within integrated optics. Ultracompact and low-loss optical waveguides and …

Soliton microcombs—phase-locked microcavity frequency combs—have become the
foundation of several classical technologies in integrated photonics, including spectroscopy …

Many breakthroughs in technologies are closely associated with the deep understanding
and development of new material platforms. As the main material used in microelectronics …

The commercial success of radio-frequency acoustic filters in wireless communication
systems has launched aluminum nitride (AlN) as one of the most widely used …

Frequency microcombs, alternative to mode-locked laser and fiber combs, enable miniature
rulers of light for applications including precision metrology, molecular fingerprinting and …

Materials with strong second-order (χ^(2)) optical nonlinearity, especially lithium niobate,
play a critical role in building optical parametric oscillators (OPOs). However, chip-scale …

Integrated photonics based on silicon has drawn a lot of interests, since it is able to provide
compact solution for functional devices, and its fabrication process is compatible with the …