We show that the AC-Stark shift (light-shift) is a powerful and versatile tool to control the emission of a photon-echo in the context of optical storage. As a proof-of-principle, we demonstrate that the photon-echo efficiency can be fully modulated by applying light-shift control pulses in an erbium-doped solid. The control of the echo emission is attributed to the spatial gradient induced by ...

background. There are a variety of potential hazards with laser technology. methods. A review of the literature. objective. To summarize the potential hazards of CO 2 and erbium laser technologies and the safety guidelines and equipment developed to minimize them. results. Laser hazards can be divided into the following categories: mechanical, environmental, macrobiologic, microbiologic, and ia...

Microcavity lasers based on erbium-doped lithium niobate insulator (LNOI), which are key devices for LNOI integrated photonics, have attracted much attention recently. In this Letter, we report the realization of a C-band single-mode laser using Vernier effect in two coupled Erbium-doped microrings with different radii under pump 980-nm continuous laser. The laser, operating stably over large r...

Herein, hydrothermally synthesized hematite nanorods (NRs) co-doped with erbium and titanium, using titanium tetrachloride erbium(III) nitrate pentahydrate as the dopant sources, are presented. The effect of varied volumes erbium/titanium surface co-dopants on morphology, structural, optical, photoelectrochemical (PEC) properties NRs is investigated. pristine hematite, 40 μL -Er, -Er/20 -Ti-dop...

BACKGROUND A variety of laser systems have recently become available that allow for selective dermal remodeling without disruption of the epidermal surface. Modest clinical improvement in mild to moderate photoinduced facial rhytides with minimal morbidity is typical of these nonablative lasers, providing a significant advantage over traditional ablative laser systems. OBJECTIVE To determine ...

BACKGROUND Fractional non-ablative lasers keep the epidermis intact, while fractional ablative lasers remove it, making them theoretically more effective. OBJECTIVES To evaluate the clinical and histological alterations induced by fractional photothermolysis for treating photoaging, comparing the possible equivalence of multiple sessions of 1540nm Erbium, to one session of 2940nm Erbium. ME...

The scope of this paper is to analyze the performance of augmented gain EDFA systems using Single and Multi-wavelength Input sources. The Performance of an Optical Communication system can be improved by the use of EDFAs as an Optical Amplifier. Erbium doped fiber amplifier (EDFA) is an important element in DWDM networks. We can achieve a flat gain spectrum by modeling the dynamic characteristi...