Results 111 to 120 of about 9,667 (268)

Electro-optically Q-switched Er:YAG laser in-band pumped by an Er,Yb fiber laser

, 2006
Electro-optically Q-switched operation of an Er:YAG laser at 1645nm end-pumped by a cladding-pumped Er-Yb fiber laser is reported.
Clarkson, W.A., D. Y. Shen, J. K. Sahu, W. A. Clarkson, Shen, D.Y., Sahu, Jayanta   +5 more
core   +1 more source

Amplifier and laser of thulium-doped silica optical fiber

Optica Pura y Aplicada, 2020
espanolEn este trabajo se presenta un laser de fibra dopada con tulio en cavidad de anillo, operando en modo continuo. El bombeo se realiza en la zona de 1600 nm mediante laseres de fibra dopada con erbio. Se ha estudiado el comportamiento con bombeo en modo continuo y en modo pulsado, obteniendo unas eficiencias del 35% y del 38%, respectivamente ...
openaire   +1 more source

High‐Efficiency Graphene‐Silicon Slot‐Waveguide Microring Modulator at 1.5 and 2 µm Wavelength Bands

Laser &Photonics Reviews, EarlyView.
E/O modulators typically face a trade‐off between bandwidth and modulation efficiency. An integrated E/O modulator is presented that simultaneously achieves wideband, large bandwidth, and high modulation efficiency operation by embedding a partially overlapped double‐layer graphene on a compact silicon slot‐waveguide microring resonator.
Chao Luan, Deming Kong, Yong Liu, Yunhong Ding, Hao Hu   +4 more
wiley   +1 more source

Multi-wavelength fiber laser with erbium doped zirconia fiber and semiconductor optical amplifier

, 2010
Multi-wavelength hybrid fiber lasers are demonstrated in both ring and linear cavities using a fabricated Erbium-doped Zirconia fiber (EDZF) and semiconductor optical amplifier (SOA) as gain media.
Hamzah, Amirah, Ahmad, Harith, Boyland, A.J., Hamzah, A., Arof, H., Harun, S.W., Yoo, S., Paul, M.C., Pal, M., Bhadra, S.K., Huri, N.A.D., Kalita, M.P., Harun, Sulaiman Wadi, Das, S., Lokman, A., Lokman, Asiah, Pal, Manimala, Arof, Hamzah, Sahu, Jayanta Kumar, Sahu, J.K., Ahmad, H.   +20 more
core  

Triple-wavelength fiber ring laser based on a hybrid gain medium actively mode-locked at 10 GHz [PDF]

, 2008
A fiber ring laser based on a hybrid gain medium that produces three simultaneously mode-locked wavelength channels is presented. The lithium niobate based modulator used to actively mode-lock the laser cavity at 10 GHz is birefringence compensated to ...
Anandarajah, Prince M., Barry, Liam P., O'Riordan, Colm, C. O'Riordan, R. Maher, O\u27Riordan, Colm, P.M. Anandarajah, L.P. Barry, Connelly, Michael J., M.J. Connelly, Maher, Robert D.   +10 more
core   +1 more source

High Energy Ultrafast Laser at 2 μm Using Dispersion Engineered Thulium-Doped Fiber

IEEE Photonics Journal, 2019
We report on demonstration of high energy pulse laser at 2 μm by employing a normal dispersion fiber attained by a waveguide dispersion engineering. The normal dispersion fiber has a W-type refractive index profile, with a Thulium(Tm)-doped
Yuhao Chen, Shaoxiang Chen, Raghuraman Sidharthan, Chen Jian Cheng, Kun Liu, Shreesha Rao, Ole Bang, Qijie Wang, Ding Yuan Tang, Seongwoo Yoo   +9 more
doaj   +1 more source

Harnessing Optical Limiting in Saturable Absorbers for Reconfigurable Spectral Engineering of Ultrafast Fiber Lasers

Laser &Photonics Reviews, EarlyView.
Optical limiting in a nanomaterial‐polymer saturable absorber is harnessed as a functional intracavity degree of freedom, where pump‐controlled photothermal loss continuously reshapes the gain spectrum of rare‐earth ions, enabling non‐mechanical spectral engineering in an ultrafast fiber laser.
Maolin Dai, Weitao Wang, Masahiro Nomura, Sze Yun Set, Shinji Yamashita   +4 more
wiley   +1 more source

Dual-wavelength Q-switched thulium doped fiber laser with TiO2 film saturable absorber

, 2018
We report a dual-wavelength Q-switched Thulium doped fiber laser based on a Titanium dioxide (TiO2) saturable absorber. The TiO2 was embedded in polyvinyl alcohol (PVA) film, which was then sandwiched in between two fiber ferrules in the cavity. By using
Harun, Sulaiman Wadi, Ahmad, Bilal A., Jusoh, Zulzilawati, Latiff, Anas Abdul, Rusdi, Muhammad Farid Mohd   +4 more
core  

Chemical Ionization Mass Spectrometry: Fundamental Principles, Diverse Applications, and the Latest Technological Frontiers

Mass Spectrometry Reviews, EarlyView.
ABSTRACT The review examines the evolution of chemical ionization mass spectrometry (CI‐MS), a technique developed in 1966 by Field and Munson. CI is a soft‐ionization method that produces more intense molecular ions with less fragmentation than electron ionization (EI).
Malvika Dutt, Adriana Arigò, Giorgio Famiglini, Pierangela Palma, Achille Cappiello   +4 more
wiley   +1 more source

Thermosensitive Nanostructured Coacervates Developed by Mixing ABA‐ and AB‐Block Copolymers and Their Unique Sustained Release of Nano‐Micelles in a Regulated Manner

Small, EarlyView.
Polyion complex micelles composed of blends of ABA and AB block copolymers can form coacervates with a hexagonally packed cylinder nanostructure after heating. The resulting coacervates can release the micelles under physiological conditions in a zero‐order kinetics, possessing cargo proteins.
Takumi Egashira, Hiroshi Kamizawa, Yujiro Hamada, Wataru Fushimoto, Hiroshi Y. Yoshikawa, Yuji Higaki, Atsushi Takahara, Takeshi Mori, Yoshiki Katayama, Akihiro Kishimura   +9 more
wiley   +1 more source