A5039738204- Laser-Matter Interactions and Applications
- Advanced Fiber Laser Technologies
- Solid State Laser Technologies
- Orbital Angular Momentum in Optics
- Photonic Crystal and Fiber Optics
- Laser-Plasma Interactions and Diagnostics
- Laser Design and Applications
- Advanced Fiber Optic Sensors
- Optical Network Technologies
- Ocean Waves and Remote Sensing
- Advanced Measurement and Metrology Techniques
- Optical measurement and interference techniques
- Semiconductor Lasers and Optical Devices
- Optical Polarization and Ellipsometry
- Photonic and Optical Devices
- Oceanographic and Atmospheric Processes
- Optical Systems and Laser Technology
- Advanced optical system design
- Ship Hydrodynamics and Maneuverability
- Optical Coatings and Gratings
Ocean University of China
2013-2023
China Academy of Engineering Physics
2005-2006
Sichuan University
2001-2004
We demonstrate a high efficiency and broadly wavelength-tunable nanosecond mid-infrared (mid-IR) erbium (Er3+)-doped fluoride fiber laser pumped at ∼1.7 μm experimentally. In the continuous-wave operation regime, mid-IR output with slope of approximately 40% has been obtained tuning range 143 nm spanning from 2695 to 2838 linewidth 0.2 nm. While in actively Q-switched mode, modulated by acousto-optic modulator (AOM) can deliver stable pulsed tunable 133 2698 2831 nm, featuring pulse width...
The second-order intensity moments and beam-propagation factor (M2 factor) of partially coherent beams have been generalized to include the case hard-edged diffraction. A laser beam with amplitude modulation phase fluctuation a Gaussian Schell-model are taken as two typical examples beams. Analytical expressions for M2 derived.
The second-order intensity moments and the beam-propagation M2 factor of partially coherent beams that propagate through a circular-symmetry hard-edged aperture are in cylindrical coordinate system. AJo-correlated Schell-model beam with Gaussian distribution is an example. analytical expression for generalized derived. numerical calculation results analyzed.
Based on chirped pulse amplification technology, we have built a Ti:sapphire laser system, called SILEX-I (superintense for experiments extremes), at CAEP, which consists of three stages with 5-, 30-, and 300-TW outputs, respectively. The first the second work 10 Hz, while third works single shot. Pulse durations 30 fs been obtained by installing an acousto-optic programmable dispersive filter (AOPDF) to compensate spectral gain narrowing in regen. By taking number advanced measures spatial...
We have built a three-stage Ti:sapphire laser system at CAEP which could deliver 5-TW, 30-TW and 286-TW pulses to the corresponding target chambers for diverse applications with innovative high-power crystal amplifiers. Pulse durations of 30fs been obtained by installing an acousto-optic programmable dispersive filter (AOPDF) before stretcher compensate spectral gain narrowing. By taking number advanced measures spatial beam control, near-diffraction limited focal spots (FWHM) which, our...
The 40 Gbit/s optical solitons transmission system in photonic crystal fiber was investigated by fast Fourier transform method, and the maximum distance of calculated numerically. By eye pattern system, performances were studied. Results show that when polarization mode dispersion coefficient Dp is smaller than , influence PMD on neglectable. When D larger 1.5 ps/km/nm, decreases rapidly. positive or negative three order group-velocity makes no differences transmission.
A Ti:sapphire laser system referred to as SILEX-I with the chirped pulse amplification technology has been built at CAEP which consists of three stages operating 5TW, 30TW, and 300TW, each having a compressor target chamber meet different needs from diverse applications. The first second work 10Hz, while third single shot. Pulse durations 26fs have obtained by installing an acousto-optic programmable dispersive filter (AOPDF) before stretcher compensate for spectral gain narrowing in regen....
Abstract Based on the treatment that rectangular function can be expanded into an approximate sum of complex Gaussian functions with finite numbers, analytical expressions for propagation partially non-uniform laser beams through apertured ABCD optical systems were derived. The typical numerical examples given and compared those obtained from numerically integral calculations. It shown results our study method significantly improve calculation ejciency.