Results 51 to 60 of about 20,259 (223)
Ultralow-threshold erbium-implanted toroidal microlaser on silicon [PDF]
, 2004 We present an erbium-doped microlaser on silicon operating at a wavelength of 1.5 mum that operates at a launched pump threshold as low as 4.5 muW.
Kalkman, J. +4 more
core +1 more source
Spatial‐Wavelength Multiplexing Error‐Controlled Photonic Analog Computing System
Advanced Science, EarlyView.A novel photonic integrated circuit prototype implementing the concept of general‐purpose analog computing and demonstrate its capability in radio frequency applications. The chip features a multichannel architecture and performs fully optical analog computation with frequency‐domain parallel processing. An FPGA‐based error‐correction algorithm aims to
Tao Zhu +15 more
wiley +1 more source
Erbium-doped nanoparticles in silica-based optical fibres [PDF]
, 2012 Developing of new rare-earth (RE)-doped optical fibres for power amplifiers and lasers requires continuous improvements in the fibre spectroscopic properties (like shape and width of the gain curve, optical quantum efficiency, resistance to spectral hole
Blanc, Wilfried +2 more
core +3 more sources
Advanced Science, EarlyView.This work proposes a multifunctional Bi2WO6:Yb,Er@CuS@CS nanocomposite that integrates photodynamic therapy (PDT), near‐infrared‐triggered photothermal therapy (PTT), and Cu2+ release for infected wound repair. The nanocomposite demonstrates enhanced antibacterial efficacy via combined PDT, PTT, and Cu2+ release, effective immunomodulatory by mild ...
Yihao Sun +9 more
wiley +1 more source
IEEE Photonics Journal, 2012 A waveguide array fiber laser is demonstrated. An AlGaAs waveguide array is used as a saturable absorber to achieve passive mode-locking in an erbium-doped fiber laser. The output consists of a very regular train of pulses. Autocorrelations show that the
Qing Chao +3 more
doaj +1 more source
Advanced Science, EarlyView.A supramolecular nanocomplex based on phenolic‐modified silk sericin is developed to deliver antioxidant enzymes across the blood–brain barrier and escape lysosomal degradation. This dual‐barrier‐crossing system reduces neuroinflammation and improves cognitive performance in Alzheimer's disease mouse model, offering a promising strategy for protein ...
Doudou Hu +5 more
wiley +1 more source
Demonstration of an erbium doped microdisk laser on a silicon chip [PDF]
, 2006 An erbium doped micro-laser is demonstrated utilizing $\mathrm{SiO_{2}}$ microdisk resonators on a silicon chip. Passive microdisk resonators exhibit whispering gallery type (WGM) modes with intrinsic optical quality factors of up to $6\times{10^{7 ...
A. Polman +4 more
core +2 more sources
Erbium-Doped Fiber Laser With a Microfiber Coupled to Silica Microsphere
IEEE Photonics Journal, 2012 A compact erbium-doped fiber laser (EDFL) is demonstrated using a piece of 1.5-m-long erbium-doped fiber (EDF) with a microfiber coupled to a silica microsphere at the output end.
A. Sulaiman, S. W. Harun, H. Ahmad
doaj +1 more source
Erbium - doped fiber laser systems: Routes to chaos [PDF]
Serbian Journal of Electrical Engineering, 2014 Erbium-doped fiber laser systems exhibit a large variety of complex dynamical behaviors, bifurcations and attractors. In this paper, the chaotic behavior which can be achieved under certain conditions in a laser system with erbium-doped fiber ...
Rubežić Vesna, Jovanović Ana
doaj +1 more source
Degeneration of four wave mixing in 500 m step index two mode fiber [PDF]
, 2016 Four wave mixing (FWM) in two-mode fiber was experimentally demonstrated at 24.7 dBm of output Erbium doped fiber amplifier (EDFA). The 0.5 km two mode fiber in laser cavity enhances the performance of four wave mixing by suppressing the homogenous ...
Awang, N.A. +4 more
core +1 more source