In dense wavelength division multiplexing systems, the light sources are difficult to be synchronized and costly. A structure of multi-carrier light source with good flatness, large number of subcarriers, large spectrum width and

A demodulation algorithm based on all-phase filters was proposed for fiber Bragg grating noise reduction. The all-phase filter can configure the filter coefficients rapidly and flexibly according to the frequency characteristics o

A temperature-controlled liquid crystal filling photonic crystal fiber was designed. The dispersion compensation characteristics of photonic crystal fiber were numerically simulated by using the finite element method. The effects

Based on the model of ultraviolet communication transmission, the absorption and scattering characteristics of ultraviolet communication were analyzed based on the Mie scattering and Rayleigh scattering theory. The impact of diffe

A theory for magnetic-temperature coupling effect generated in a Fiber Optic Gyroscope (FOG) under the combined action of magnetic and temperature fields was proposed. The magnetic-temperature coupling in FOG originates from the i

This paper is aiming at jointly optimizing the design and analysis of the optics and digital image processing for imaging systems. The influence of each aberration on the imaging sharpness is analyzed according to the Zernike poly

Based on the clinical available wavefront aberrations of human eye, corneal topography and axial data, 60 individualized eye models were constructed in the optical software Zemax, with which the ingoing wavefront aberrations and o

The intersection issues between the reflected light and the incident light are transformd into the intersection problems between the reflected light and the plane containing the incident light, and the line-plane model is construc

Aiming at the need of high-precision detection of aeroengine blade profile, the 3D reconstruction technology of blade profile based on laser scanning point cloud was described, and the error of profile reconstruction was analyzed.

The digital holographic measurement method and the diffraction propagation algorithm of variable sampling interval were proposed to realize the fine measurement of the focal length and focal spot of the photon sieve. The bifocal p

With a LiNbO3 crystal as the electro-optic Q-switch, a compact Q-switched laser with a high repetition rate and a narrow pulse width was developed. The crystal was sandwiched between two crossed polarizers, then the variation of t

An active-passive double Q-switched 946 nm laser was reported which with a double 45° cut-magnesium oxide doped LiNbO3 electro-optic crystal and a monolayer molybdenum selenide saturable absorber. In order to obtain 946 nm laser p

Based on theoretical calculation of the stored energy and small-signal gain coefficient of the travelling wave amplifier, the characteristics of the output laser were simulated. With the increment of the pumping current, the store

Dynamical characteristics of a monolithically integrated semiconductor laser have been experimentally studied. The laser consists of a distributed feedback semiconductor laser section, a phase controlling section and a semiconduct

According to the temperature tunability of chirped fiber grating, a new kind of dispersion compensation method was proposed, which make chirp fiber grating in a continuous linear temperature gradient field. The dispersion of chirp

The samples of Er3+ and Eu3+ co-doped GaN epitaxial films were prepared by ion implantation technique. Their optical properties and energy transfer mechanism were investigated using cathodoluminescence. For Er3+ and Eu3+ co-doped

In order to study the stability of graphene transparent conductive film under light irradiation and the mechanism of its stability change, the electrical conductivity of graphene under different atmosphere, wavelength and power de

In order to obtain high-performance flexible transparent conductive thin films, STO (30 nm)/Ag/STO (30 nm) multilayer thin films were prepared on PC substrates by magnetron sputtering. The influences of Ag mid-layer thickness on t

Based on research idea of Quantitative Structure-Property Relationship, parameters of physicochemical properties refractive index and density as well as the structure parameter molar refraction were correlated with the component p

The transmissivity and conductivity of the few-layer graphene with 600 nm CW laser and two substrates are measured and analyzed, based on terahertz time-domain spectroscopy and the Drude model. In this study, the absorption of ter

Extinction enhancement of GaSb nanowire because of Au nano antenna is studied based on finite difference time domain method. The electric field property and optical property of Au nano antenna array with different shapes are analy

By measuring the distribution of impurity Zn in InP of planar-type InGaAs/InP Geiger mode Avalanche Photodiodes,the function of doping concentration with diffusion depth was fitted, and the optimum depth of etch well at different

A theoretical model of Ag/Au micro and nano structure was established based on the optical near-field excitation and the local field theory by optical simulation software. The new structure of polymer/fullerene solar cells based o

A tunable gradual changed Slotted Photonic Crystal Waveguide (S-PCW) was demonstrated based on subwavelength particle controller for vacuum environment. Particles can be trapped in slot structure and transported along the light tr

It is found that the resolution of the striations is reduced from the center to the edge. In order to improve the edge spatial resolution of the streak, the compression sensing is applied to the X-ray streak camera imaging system.

A Hexagonal Close-packed Multi-lamination-layer Carbon Nanotube (HCP-MLL-CNT) cathode is proposed. In this scheme, the silver slurry is sintered to form the substrate silver electrode with a hexagon-shaped edge, which is fabricate

An integrated spectral micro-module with a linear variable filter and an InGaAs focal plane array was proposed. As the core light dispersing element, the linear variable filter was coupled with an InGaAs detector array. Compared w