Single-mode cw erbium–ytterbium glass laser at 15 μm

Abstract

Single-mode operation of a continuous-wave Er:Yb:phosphate glass laser pumped at 980 nm by a InGaAs index-guided diode laser has been achieved for what is to our knowledge the first time. The maximum output power obtained at 1540 nm is 10 mW, and the width of the spectral line is less than 15 kHz.

Plasmon-photon conversion to near-infrared emission from Yb3+: (Au/Ag-nanoparticles) in tungsten-tellurite glasses

“…As reported in the literature, silver ions are very mobile in tellurite glass and tend to aggregate easily, forming then metallic NPs 22 . In contrast to silver ions, gold ions exhibit lower mobility in the same glassy network 20 , which can be confirmed, for instance, by Fig. 1(a,g) , where both HM_Y10S and HM_Y10G samples show different surface morphologies.…”

“…The annealing temperature (=350 °C) used here to nucleate, generate and grow NPs is below the T g of the HM_Y sample. Such a condition was chosen for the reasons discussed by Rivera et al 3 20 . Durations of 1 and 3 hours for HM_YxS and HM_YxG samples, respectively, and annealing temperature were adequate to provide enough mobility to the silver or gold atoms, which then nucleate onto and within the glass, forming SNPs or GNPs.…”

“…it is a two-level quantum emitter whose concentration quenching and multiphonon relaxation should not affect its lasing action 19 . Besides, Yb 3+ ion is also a sensitizer of energy transfer for infrared-to-visible up-conversion and infrared lasers 10 20 .…”

Single-frequency, thin-film-tuned, 06-W, diode-pumped Nd:YVO_4 laser

“…Resurgence of the solidstate laser has resulted in considerable simplification and compactness of laser devices owing to new laser diode pump systems and new high-doped gain media. In recent years several methods of single-frequency operation in diode-pumped lasers have been demonstrated as follows: nonplanar ring cavity, 1 microchip with a linear cavity, 2,3 gain medium with hole burning, 4 twisting mode cavity, 5 acousto-optically induced feedback, 6 cavity with mode selectors, [7][8][9][10] and coupled resonators. 11 Among these systems the microchip with a linear cavity is the simplest design and has the best mechanical stability.…”

Rare earth-doped integrated glass components: modeling and optimization

“…Glass is chosen as host, as it is stable to changes of environment, has a low propagation loss, and the potential of low-loss coupling to standard optical fibers. The 1.55 pm narrow linewidth erbium source is of the utmost importance for high-bit-rate long-distance fiber optic communication and for coherent optical transmission, but also for spectroscopic, telemetry [ 11, and special metrological applications [2]. Combined with the advantages of integration and dense packing, a miniaturized diode-pumped eye safe source will be extremely attractive for the medical industry and applications as sensors, laser Manuscript received October 7, 1993; revised October 27, 1994.…”