We introduce the fabrication and use of microcracks embedded in glass as an optical
element for manipulating light propagation, in particular for enhancing waveguide …

We report writing low-loss waveguides (WGs) by using a femtosecond laser in silica glass. A
record low propagation loss of 0.07? dB/cm is achieved, and the lowest bend loss reaches …

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 …

We identify two states of stress induced in waveguides fabricated by femtosecond lasers in
fused silica and show how they can be relieved by annealing. In-plane stress and stress …

There is a deficiency of low-loss microstructured waveguides that can be fabricated with a
single laser-pass to minimize stress build-up, which can enable enhanced functionality and …

Waveguides are inscribed through densification of the surrounding region of a damage
induced channel created by femtosecond irradiation within silica. Single mode propagation …

We report on the fabrication of stress-induced optical channel waveguides and waveguide
splitters with laser-depressed cladding by femtosecond laser. The laser beam was focused …

Optical waveguides directly written in fused silica using a femtosecond laser were
characterized from 350 to 1750 nm to gain insight on the waveguide's loss mechanisms and …

We studied the influence of focusing depth on the index change threshold and damage
threshold of silica glass irradiated by a focused 120 fs laser beam. Both thresholds …

We provide a solution toward compact and low-loss three dimensional (3D) photonic circuits
by femtosecond laser direct writing of 3D waveguides in fused silica. We suppress the bend …