A distributed feedback channel waveguide laser in erbium-doped aluminum oxide on a silicon substrate is reported. The optically pumped laser has a threshold pump power of 15 mW and emits 3 mW in single-frequency operation at 1545.2 nm wavelength with a slope efficiency of 6.2% and linewidth of 15 kHz. Keywords—Distributed feedback (DFB) laser; waveguide laser; erbium-doped laser; Bragg gratings...

We report, for the first time to our knowledge, the presence of concentration-induced nonuniform power in tunable erbium-doped fiber lasers. A theoretical model is proposed with pair-induced quenching taken into account. We obtain good agreement between numerical and experimental results of a high-concentration erbium-doped fiber ring laser with a large tuning range of over 100 nm. These findin...

Dentistry has a new weapon in the fight against tooth decay. This ‘light saber’ of dentistry is the erbium laser. The dental laser is the latest modern innovation for the 21st Century. Erbium lasers have proven safe and effective for the removal of tooth decay and cavity preparation, in addition to many soft tissue and hard tissue surgical procedures. The FDA approved the erbium laser for marke...

Temperature-dependent measurements of the photoluminescence ~PL! intensity, PL lifetime, and infrared photocurrent, were performed on an erbium-implanted silicon p – n junction in order to investigate the energy transfer processes between the silicon electronic system and the Er 4 f energy levels. The device features excellent light trapping properties due to a textured front surface and a high...

We report on integrated erbium-doped waveguide lasers designed for silicon photonic systems. The distributed Bragg reflector laser cavities consist of silicon nitride waveguide and grating features defined by wafer-scale immersion lithography and a top erbium-doped aluminum oxide layer deposited as the final step in the fabrication process. The resulting inverted ridge waveguide yields high opt...

Techniques of film deposition by co-evaporation, ion-beam assisted mixing, oxygen ion implantation, and thermal annealingwere been combined in a novel way to study processing of erbium-in-silicon thinfilm materials for optoelectronics applications. Structures with erbium concentrations above atomic solubility in silicon and below that of silicide compoundswere prepared by vacuum co-evaporation ...

We present an investigation of Er photoluminescence in Y2O3 waveguides codoped with Eu . As a function of europium concentration we observe an increase in decay rate of the erbium I11/2 energy level and an increase of the ratio of photoluminescence emission from the I13/2 and I11/2 states. Using a rate equation model, we show that this is due to an energy transfer from the I11/2→I13/2 transitio...

Erbium-doped solid-state laser systems have become an established tool in dentistry. The two most commonly used Erbium lasers in dentistry are Er:YAG and Er,Cr:YSGG, with a subtle but important difference in their respective laser wavelengths. There is also an important difference in the type of technology they utilize to energize the flashlamps. The conventional PFN (Pulse Forming Network) pul...

Fractional erbium (Er:YAG) and carbon dioxide (CO2) lasers are ablative fractional resurfacing systems widely used to improve the appearance of wrinkles and atrophic scars. However, there have been limited studies comparing the clinical outcome and adverse effects of these two lasers. We conducted a prospective, randomized trial to compare the efficacy and safety of fractional erbium and carbon...