Internally wavelength stabilized 910 nm diode lasers with epitaxially stacked multiple active regions and tunnel junctions

Comparison the Effect of 810 nm and 940 nm Diode Lasers on Solobacterium Moorei in Vitro

Background and aim: Given the role of Solobacterium moorei in bacteremia, septicemia, oral infections, halitosis, and periodontal diseases and previous research defects considering the important role of laser in comparison with the application of antimicrobial agents, the purpose of this research was to compare the effect of 810nm and 940nm lasers on Solobacterium moorei in vitro situation. Mat...

Utilization of 940 Nm Wavelength Diode Lasers and the Morpho‐histological Modifications in Periodontal Tissues

Introduction: Non‐conventional techniques represent a more and more frequently employed alternative in medi‐ cine, firstly due to their minimally invasive character. Laser technologies represent forward‐looking methods to which numerous stomatologists resort, mainly because of their multiple applications in periodontology. The scope of the study was to identify the possible morpho‐histological ...

High-depth-resolution range imaging with multiple-wavelength superheterodyne interferometry using 1550-nm lasers.

Lasers and laser diodes are widely used as illumination sources for optical imaging techniques. Time-of-flight (ToF) cameras with laser diodes and range imaging based on optical interferometry systems using lasers are among these techniques, with various applications in fields such as metrology and machine vision. ToF cameras can have imaging ranges of several meters, but offer only centimeter-...

Modelling of fluxon dynamics in stacked Josephson tunnel junctions

Photonic Integrated Circuits for Optical Logic Applications

The optical logic unit cell is the photonic analog to transistor-transistor logic in electronic devices. Active devices such as InP-based semiconductor optical amplifiers (SOA) emitting at 1550 nm are vertically integrated with passive waveguides using the asymmetric twin waveguide technique and the SOAs are placed in a Mach-Zehnder interferometer (MZI) configuration. By sending in high-intensi...