Li2SO4-MgO-P2O5 glasses doped with varied contents of CuO (from 0- 1.0 mol%) were prepared. The optical birefringence induced by a High Q-2 femtosecond pulsed laser is explored as function copper oxide concentration in these glasses. magnitude the light-induced exhibited gradual decrease increase content. observed behavior discussed terms polymerization glass network, degree which rises Cu+ ion...

Sustained, large amplitude and tunable birefringence-induced oscillations are obtained in a spin-vertical cavity surface-emitting laser (spin-VCSEL). Experimental evidence is provided using a spin-VCSEL operating at 1300 nm, under continuous-wave optical pumping and at room temperature. Numerical and stability analyses are performed to interpret the experiments and to identify the combined effe...

Even scientific grade optical glasses show birefringence when small external forces are applied to the sample. Stress-induced birefringence can be particularly detrimental to the state of polarization of light when a laser beam is transmitted through the glass. This is especially the case for glass windows of a vacuum chamber. Since compensation of spatially inhomogeneous birefringence is extre...

We demonstrate the polarization-dependent anisotropy of the laser induced nanostructures inside SiO2 and GeO2 glass. Such nanostructures show form birefringence which is controllable by the femtosecond double-pulse configuration. In the case of SiO2 glass, we have also demonstrate polarization imaging filter based on the linear dichroism for the visible light ranging from 400 to 800 nm. While, ...

In this paper, a low-loss 90°-bending design in femtosecond laser-induced double-line waveguides is theoretically proposed and experimentally demonstrated. The bending realized based on the total internal reflection of corner mirror (made by precise diamond blade dicing) located at intersection pair perpendicular to each other. waveguide performance was birefringence free, with insertion loss b...

Surface texturing is demonstrated by the combination of wet etching and ultrafast laser nanostructuring of silica glass. Using potassium hydroxide (KOH) at room temperature as an etchant of laser modified glass, we show the polarization dependent linear increase in retardance reaching a threefold value within 25 hours. The dispersion control of birefringence by the etching procedure led to achr...

In high power solid-state-laser systems, one of the major problems is the thermal effect, which occurs in optically pumped laser materials. Heating of the laser medium causes thermal distortions, leading to degradation of beam quality. The main thermal effects in laser rods are thermally induced birefringence and thermal lensing effects. High efficiency, high power and good output beam quality ...

We report on a new vector model of an erbium-doped fibre laser mode locked with carbon nanotubes. This model goes beyond the limitations of the previously used models based on either coupled nonlinear Schrödinger or Ginzburg-Landau equations. Unlike the previous models, it accounts for the vector nature of the interaction between an optical field and an erbium-doped active medium, slow relaxati...

The polarization-dependent photon-number squeezing of 1.5 dB from a grating feedback locking quantum-well laser in a cryostat has been experimentally detected with a balanced homodyne detector including an imperfect nonpolarized-beam splitter. The great influence of the birefringence induced at low temperature on the determination of the shot-noise-limit and on the detection of photon-number sq...