搜索结果: 1-15 共查到“光学 fiber”相关记录17条 . 查询时间(0.31 秒)
Generation of Bragg similaritons in nonlinear fiber Bragg gratings with gain
Generation of Bragg similaritons nonlinear fiber Bragg gratings gain Optics
2012/5/29
We have explored through numerical simulations the amplification of laser pulses in nonlinear fiber Bragg gratings with gain and normal dispersion. The distortion of the temporal intensity profile cau...
A photonic crystal cavity-optical fiber tip nanoparticle sensor for biomedical applications
photonic crystal cavity-optical fiber tip nanoparticle sensor biomedical applications Optics
2012/4/19
We present a sensor capable of detecting solution-based nanoparticles using an optical fiber tip functionalized with a photonic crystal cavity. When sensor tips are retracted from a nanoparticle solut...
Exact Model for Mode-Dependent Gains and Losses in Multimode Fiber
Multimode fiber mode-division multiplexing random matrices Optics
2012/4/19
In the strong mode coupling regime, the model for mode-dependent gains and losses (collectively referred as MDL) of a multimode fiber is extended to the region with large MDL. The MDL is found to have...
We present a novel fiber-based near-field optical head consisting of a straw-shaped writing probe and a flat gap sensing probe. The strawshaped probe with a C-aperture on the end face exhibits enhance...
A periodic add/drop system in a fiber ring network was investigated using a reconfigurable optical add/drop multiplexer (ROADM) in a re-circulating fiber loop. After seven cascaded add/drop nodes at e...
A Novel Direct Detection Microwave Photonic Vector Modulation Scheme for Radio-Over-Fiber System
2011/11/22
This letter demonstrates the feasibility of a novel direct detection microwave photonic vector modulation scheme for the radio-over-fiber (RoF) system. Unlike the traditional double-sideband with opti...
Optimized coupling of cold atoms into a fiber using a blue-detuned hollow-beam funnel
Optimized coupling cold atoms fiber blue-detuned hollow-beam funnel
2011/8/11
Abstract: We theoretically investigate the process of coupling cold atoms into the core of a hollow-core photonic-crystal optical fiber using a blue-detuned Laguerre-Gaussian beam. In contrast to the ...
Theory of quantum frequency translation of light in optical fiber: application to interference of two photons of different color
quantum frequency translation light optical fiber photons Quantum Physics
2011/8/17
Abstract: We study quantum frequency translation and two-color photon interference enabled by the Bragg scattering four-wave mixing process in optical fiber. Using realistic model parameters, we compu...
Timing jitter optimization of mode-locked Yb-fiber lasers toward the attosecond regime
Fluctuations relaxations and noise Ultrafast lasers
2011/8/29
We demonstrate ultra-low timing jitter optical pulse trains from freerunning,80 MHz repetition rate, mode-locked Yb-fiber lasers. Timing jitter of various mode-locking conditions at close-to-zero intr...
Wavelength tunable spectral compression in a dispersion-increasing fiber
Wavelength dispersion-increasing fiber
2011/8/26
Adiabatic soliton spectral compression in a dispersion-increasing fiber is demonstrated both numerically and experimentally.We show a positively-chirped pulse provides better spectral compression in a...
We demonstrate a wideband-tunable Q-switched fiber laser exploiting a graphene saturable absorber.We get2μs pulses, tunable between 1522 and 1555nm with up to40nJ energy. This is a simple and low-co...
Enhanced Two-Photon Absorption in a Hollow-Core Photonic Bandgap Fiber
Enhanced Two-Photon Absorption Hollow-Core Photonic Bandgap Fiber
2010/11/12
We show that two-photon absorption (TPA) in Rubidium atoms can be greatly enhanced by the use of a hollow-core photonic bandgap fiber. We investigate off-resonant, degenerate Doppler-free TPA on the ...
A High-resolution Scintillating Fiber Tracker With Silicon Photomultiplier Array Readout
tracker scintillating ber silicon photomultiplier SiPM MPPC
2011/1/5
We present prototype modules for a tracking detector consisting of multiple layers of 0:25mm diameter scintillating bers that are read out by linear arrays of silicon photomultipliers.
Efficient Guiding of Cold Atoms though a Photonic Band Gap Fiber
Efficient Guiding Cold Atoms Photonic Band Gap Fiber
2010/10/29
We demonstrate the first guiding of cold atoms through a 88 mm long piece of photonic band gap fiber. The guiding potential is created by a far-off resonance dipole trap propagating inside the fiber w...
Hidden possibilities in controlling optical soliton in fiber guided doped resonant medium
optical soliton fiber guided doped resonant medium
2010/10/27
Fiber guided optical signal, propagating in a Erbium doped resonant medium, is known to produce
cleaner solitonic pulse described by the self induced transparency (SIT) coupled to the nonlinear Schr¨...