Results 81 to 90 of about 144,471 (205)

Longitudinal dynamics with rf phase modulation in the Brazilian electron storage ring

Physical Review Special Topics. Accelerators and Beams, 2006
In the Brazilian synchrotron light source (LNLS—Laboratório Nacional de Luz Síncrotron), we observed that modulating the phase of the accelerating fields at approximately twice the synchrotron frequency suppressed remarkably well a longitudinal coupled ...
N. P. Abreu, R. H. A. Farias, P. F. Tavares   +2 more
doaj   +1 more source

Optimised Fabry-Perot (AlGa)As quantum well lasers tunable over 105 nm [PDF]

, 1989
Uncoated, Fabry-Perot (AlGa)As semiconductor lasers are tuned over 105nm in a grating-coupled external cavity. Broadband tunability is achieved by optimising the resonator loss so as to invoke lasing from both the first and second quantised states of the
Mehuys, D., Mittelstein, M., Sarfaty, R., Ungar, J. E., Yariv, A.   +4 more
core   +1 more source

Electro-opto-mechanical radio-frequency oscillator driven by guided acoustic waves in standard single-mode fiber

, 2017
An opto-electronic radio-frequency oscillator that is based on forward scattering by the guided acoustic modes of a standard single-mode optical fiber is proposed and demonstrated.
Diamandi, Hilel Hagai, London, Yosef, Zadok, Avi   +2 more
core   +2 more sources

High data rate modulation of high power 1060-nm DBR tapered lasers with separate contacts [PDF]

, 2013
Direct optical modulation at 2.5 Gb/s with amplitude of more than 0.5 W has been demonstrated in single longitudinal mode distributed Bragg reflector tapered lasers emitting at 1060 nm with separated injection of the ridge waveguide and tapered sections.
Adamiec, Pawel, Aguilera Navarro, Santiago, Consoli Barone, Antonio, Erbert, Götz, Esquivias Moscardo, Ignacio, Garcia Tijero, Jose Manuel, Klehr, Andreas, Schwertfeger, Sven, Sumpf, Bernd, Wenzel, Hans   +9 more
core   +2 more sources

Continuous-wave operation of InGaN tunable single-mode laser with periodically slotted structure

Applied Physics Express
By introducing wavelength tunability, InGaN single longitudinal mode lasers can be used for pumping wavelength conversion devices with a small pump wavelength tolerance. A 405 nm InGaN tunable slotted laser was designed and fabricated by a simple process
Taisei Kusui, Takumi Wada, Naritoshi Matsushita, Masahiro Uemukai, Tomoyuki Tanikawa, Ryuji Katayama   +5 more
doaj   +1 more source

Ultra-Narrow Bandwidth Microwave Photonic Filter Implemented by Single Longitudinal Mode Parity Time Symmetry Brillouin Fiber Laser. [PDF]

Micromachines (Basel), 2023
Hou J, You Y, Liu Y, Jiang K, Han X, He W, Geng W, Liu Y, Chou X.   +8 more
europepmc   +1 more source

Optical transmission through a polarization preserving single mode optical fiber at two Ar(+) laser wavelengths [PDF]

The transmission characteristics of two Ar(+) laser wavelengths through a twenty meter Panda type Polarization Preserving Single Mode Optical Fiber (PPSMOF) were measured. The measurements were done with both single and multi-longitudinal mode radiation.
Hunter, William W., Jr., Tedjojuwono, Ken K.   +1 more
core   +1 more source

A Novel Laser Mode Identification Method Based on Wavemeter Interference Fringe and Machine Learning

Applied Sciences
In many laser application scenarios, concentrated optical energy, high coherence, and narrow spectral linewidth are critical optical characteristics that ensure the excellent performance of lasers.
Fan Yang, Yong Lin, Qi’an Wang, Wei Tan, Weiming Xu, Pengpeng Yan, Hongbo Zheng, Luning Li, Buhua Tu   +8 more
doaj   +1 more source

Orthogonally polarized dual-wavelength single-longitudinal-mode Tm,Ho:LLF laser

Optics Express, 2013
We first report a diode-pumped continuous wave orthogonally polarized dual-wavelength single-longitudinal-mode laser with a single c-cut Tm,Ho:LuLiF₄ laser crystal. The simultaneous dual-wavelength single-longitudinal-mode laser near 2 μm is realized by using two uncoated intracavity Fabry-Perot etalons.
Xinlu, Zhang, Su, Zhang, Chaoyang, Wang, Li, Li, Jiaqun, Zhao, Jinhui, Cui   +5 more
openaire   +2 more sources

Switchable Dual-Wavelength Thulium-Doped Fiber Laser Based on Polarization-Maintaining Fiber Bragg Grating and Compound Cavity Filter

Photonics
This paper presents experimental evidence regarding a novel switchable dual-wavelength thulium-doped fiber laser (TDFL). Wavelength switching is achieved by combining a polarization-maintaining fiber Bragg grating (PM-FBG) with a polarization controller (
Xiangdong Wang, Fengping Yan, Hao Guo, Wei Wang, Dandan Yang, Pengfei Wang, Ting Li, Chenhao Yu, Kazuo Kumamoto, Yuping Suo   +9 more
doaj   +1 more source