Photonics integrated circuitry would benefit considerably from the ability to arbitrarily control
waveguide cross-sections with high precision and low loss, in order to provide more …

We present a novel method to fabricate low bend loss femtosecond-laser written
waveguides that exploits the differential thermal stabilities of laser induced refractive index …

Explosive growth in demand for data traffic has prompted exploration of the spatial
dimension of light waves, which provides a degree of freedom to expand data transmission …

Femtosecond laser writing is a powerful technique that allows rapid and cost‐effective
fabrication of photonic integrated circuits with unique 3D geometries. In particular, the …

The vast development of integrated quantum photonic technology enables the
implementation of compact and stable interferometric networks. In particular, laser-written …

Photonic devices that can guide, transfer, or modulate light are highly desired in electronics
and integrated silicon (Si) photonics. Here, we demonstrate for the first time, to the best of …

As the most fundamental unit of photonic integration, optical waveguides offer the possibility
of developing efficient and practical photonic chips by facilitating the on‐chip integration of …

We present a novel method for three-dimensional optical splitter that have U-grooves, which
are used for fiber alignment, within a fused silica glass using near-IR femtosecond laser …

Integrated photonics is attracting considerable attention and has found many applications in
both classical and quantum optics, fulfilling the requirements for the ever-growing complexity …

We report both theoretical and experimental results of a slit beam shaping configuration for
fabricating photonic waveguides by use of femtosecond laser pulses. Most importantly we …