Results 11 to 20 of about 30,057 (295)

Multiwavelength operation of erbium-doped fiber lasers by periodic filtering and phase modulation [PDF]

, 2009
This paper explains the principles behind multiwavelength operation of an erbium-doped fiber laser (EDFL) under the combined effect of cavity phase modulation and periodic wavelength filtering.
Mirza, M.A., Stewart, G.
core   +4 more sources

Erbium-doped laser with multi-segmented silicon nitride structure [PDF]

, 2014
We report on DFB and DBR lasers formed from a wavelength insensitive multisegmented silicon nitride waveguide. Using a five-segment waveguide, we obtain lasing in erbium-doped DBR (-3.6 dBm) and DFB (-7.3 dBm) cavities.
E Shah Hosseini (21843803), MR Watts (9848429), P Purnawirman (21843800), TN Adam (21843809), D Coolbaugh (21843815), A Baldycheva (21843428), JDB Bradley (21843806), G Leake (21843812), J Sun (7716419)   +8 more
core   +6 more sources

THE CONCENTRATION OF THE ERBIUM EARTHS. [PDF]

Journal of the American Chemical Society, 1921
n ...
Brinton, Paul H. M.-P., James, C.
openaire   +1 more source

Real-time synchrotoron radiation X-ray diffraction and abnormal temperature dependence of photoluminescence from erbium silicates on SiO2/Si substrates

AIP Advances, 2012
The erbium silicate formation processes during annealing in Ar gas were monitored by synchrotron radiation grazing incidence X-ray diffraction (GIXD) in real time and the optical properties of the silicates were investigated by photoluminescence ...
H. Omi, T. Tawara, M. Tateishi
doaj   +1 more source

Assessment of Erbium laser therapy for gingival depigmentation, its safety and effectiveness [PDF]

Journal of Bioscience and Applied Research
Background: Erbium lasers may be used for both soft and hard tissue treatments, they are a more beneficial tool for dentists than other tools. Thus, we used erbium lasers to treat the gingival depigmentation.Materials and methods: The purpose of this ...
Mohammed Al-Daraji, Mona Al-Safi, Mustafa Hasan, Omar Alaa, Hamzah Alkuhla   +4 more
doaj   +1 more source

Impact of Intracavity Power Variations toward Ultrashort Pulse Generation

Applied Sciences, 2023
This study demonstrates a passive mode-locked erbium-doped fiber laser with a graphene nanoplatelet-saturable absorber (GNP-SA) that generates ultrashort pulses within femtosecond pulse duration. The GNP-SA is fabricated via a direct transfer approach by
Ahmad Fauzi Abas, Kuen Yao Lau, Yahya Mohammed Al-Moliki, Yosef Taher Aladadi, Mohammed Thamer Alresheedi, Mohd Adzir Mahdi   +5 more
doaj   +1 more source

Tunable single-frequency ytterbium-sensitized erbium-doped fiber MOPA source with 150W (51.8 dBm) of output power at 1563 nm [PDF]

, 2005
A single-frequency, single-mode ytterbium-sensitized erbium-doped fiber master-oscillator power-amplifier generated 150 W of continuous-wave output power at 1563 nm with 33% slope efficiency and was tuned in the range of 1546 to 1566 nm at >125 ...
Jeong, Y., J. Nilsson, Nilsson, J., Codemard, C.A., Y. Jeong, Soh, D.B.S., D.B.S. Soh, C.A. Codemard, Sahu, J.K., J.K. Sahu   +9 more
core   +1 more source

Synthesis and Characterization of Erbium-Doped Silica Films Obtained by an Acid–Base-Catalyzed Sol–Gel Process

Nanomaterials, 2023
Erbium-doped silica films were synthesized using a two-step sol–gel methodology that involved acid and base catalysts, with erbium concentration ranging from 0.2% to 6% and annealing temperatures varying from 500 °C to 900 °C.
Ali Abdullah, El Mostafa Benchafia, Daniel Choi, Sufian Abedrabbo   +3 more
doaj   +1 more source

Efficient low-threshold lasers based on an erbium-doped holey fiber [PDF]

, 2005
We report experimental results on the continuous-wave lasers based on a small core erbium-doped holey fiber. In a simple Fabry-Perot-type cavity with high output coupling, we demonstrate low-threshold (0.55 mW) high slope-efficiency (57.3%) operation ...
Furusawa, K., Lee, J., Richardson, D., Sahu, J., Richardson, D.J., Monro, T., Monro, T.M., Kogure, T., Sahu, J.K., Lee, J.H.   +9 more
core   +1 more source

Comparison of micromorphological changes in enamel using SEM analysis after conventional and erbium, chromium:yttrium, scandium, gallium, and garnet hard-tissue laser fissurotomy: An in vitro study

Journal of Indian Society of Pedodontics and Preventive Dentistry, 2023
Background: Well articulated by John Knowles – “Everything has to evolve or else it perishes.” With the paradigm shift of emphasis toward the prevention of dental caries, it has been proven that laser irradiation protects against both caries initiation ...
Priyanka Aggarwal, Pallavi Anand, Kopal Singh, Pulkit Jhingan, Manvi Malik, Shivani Mathur   +5 more
doaj   +1 more source