Mr. Yanbing Jiang Profile

Yanbing Jiang

at Zhejiang Univ

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Author

Publications (5)

Proceedings Article | 13 November 2010 Paper

Beam-shaping of laser diode stack for uniform illumination by cylindrical micro-lenses

Wangpin ShangGuan, Huimin Yan, Yanbing Jiang, Xiuda Zhang, Chao Yang

Proceedings Volume 7844, 784405 (2010) https://doi.org/10.1117/12.869960

KEYWORDS: Gaussian beams, Beam shaping, Semiconductor lasers, Optical design, Superposition, Imaging systems, Beam propagation method, High power lasers, Optical components, Fiber optic illuminators

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SPIE Journal Paper | 1 April 2010

Beam-shaping method for uniform illumination by superposition of tilted Gaussian beams

Yanbing Jiang, Huimin Yan, Xiuda Zhang

OE, Vol. 49, Issue 04, 044203, (April 2010) https://doi.org/10.1117/12.10.1117/1.3407457

KEYWORDS: Gaussian beams, Superposition, Beam shaping, Laser beam propagation, Beam propagation method, Optical engineering, Illumination engineering, Imaging systems, Fourier transforms, Semiconductor lasers

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Proceedings Article | 8 January 2008 Paper

Pulse response research of avalanche photodiode for range detection application

Yanbing Jiang, Huimin Yan, Qiming Wang

Proceedings Volume 6838, 68380I (2008) https://doi.org/10.1117/12.755446

KEYWORDS: Avalanche photodetectors, Pulsed laser operation, Avalanche photodiodes, Time metrology, Semiconductor lasers, Signal detection, Laser systems engineering, Ionization, Monte Carlo methods, Thulium

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Proceedings Article | 11 January 2007 Paper

A 3D framing camera with pulse laser and modulated receiver

Xiuda Zhang, Huiming Yan, Yanbing Jiang, Shenbao Yin

Proceedings Volume 6279, 62792K (2007) https://doi.org/10.1117/12.725257

KEYWORDS: Modulation, Microchannel plates, Receivers, Pulsed laser operation, Stereoscopic cameras, Charge-coupled devices, Cameras, Imaging systems, 3D modeling, 3D metrology

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It is convenient to apply three-dimensional (3D) detecting instruments to automatic drive, virtual reality modeling, terrain reconnaissance, etc. It is presented that a new high-speed camera which achieves one three-dimensions image by only one light pulse in this paper. It has a measurement range of one kilometer and a distance resolution of five meters. This camera is composed with a pulse laser and three receivers which are made up with a Micro Channel Plate (MCP) and a Charge Coupled Device (CCD) each. These parts are mature commercial productions that provide low cost and high reliable to the 3D camera. As soon as the pulse laser emits a light pulse, the three receivers are modulated with synchronistical control circuits. A 3D picture can be calculated by three different density images which are obtained by that. The one-light-pulse-one-picture mode gives a flexible way to work with a gate signal. A 3D camera working with high-speed gate signal can achieve high-speed photography easily. A mathematic model is established to describe measurement range, distance detection precision and space resolving of the camera. The best modulation functions of the receivers are given with consideration of white noise by Euler-Lagrange equation. Due to the best modulation function we give a scheme is follows: The first receiver is modulated by a const gain, the second one is modulated by a linearly increasing gain and the last one is modulated by a linear decreasing gain. This combination achieve both low noise and simple structure. Because of the simple structure, several fibers which we named amending fibers can be used to amend error of receiver modulation and synchronistical error. Analysis of the detection precisions of the camera and continuous wave detection systems are carried out both in time domain and frequency domain. The results indicate pulse laser can increase the detection range by suppressing background light greatly and decreasing imaging time. But it achieves lower precision if the background light is faintness. Simulation experiment results are presented in this paper. A 1.4 kilometers fiber was used in this experiment to simulate a 700 meters distant, a Laser Diode (LD) is employed to simulate the pulse laser. A high voltage modulation circuit was designed to modulate the gain of MCP to implement the modulation function. The experiment results with and without amending fibers indicated that the primary noises come from CCD and the high voltage modulation circuit. The amending fibers can weaken the circuit errors in some degree. Future improvement is described in the end of the paper also.

Proceedings Article | 11 January 2007 Paper

3D framing camera system based on sample cumulation method

Yanbing Jiang, Huiming Yan, Xiuda Zhang, Long Wang, Yan Li

Proceedings Volume 6279, 62790J (2007) https://doi.org/10.1117/12.725097

KEYWORDS: Stereoscopic cameras, Imaging systems, 3D image processing, Binary data, Image intensifiers, Pulsed laser operation, Cameras, Signal processing, Microchannel plates, Charge-coupled devices

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