Title :
Circularization and collimation of elliptical Gaussian beam based on kinematic and dynamic ray tracing
Author :
Zejian Lu ; Xiaodong Chen ; Yuan Yao ; Xiaoming Liu ; Junsheng Yu ; Weihua Li
Author_Institution :
Sch. of Electron. Eng., Beijing Univ. of Posts & Telecommun., Beijing, China
Abstract :
A dual shaped reflector system based on kinematic and dynamic ray tracing technique is developed to achieve a circular, collimated, and uniform beam from an elliptical Gaussian beam generated by the Quantum Cascade Laser(QCL) applied in terahertz holographic image system. Simulation result shows that the system has achieved ±0.7dB amplitude ripple and ±7 degree phase vibration for the output beam profile.
Keywords :
Gaussian channels; holography; optical collimators; quantum cascade lasers; ray tracing; terahertz wave imaging; circularization; collimation; dual shaped reflector system; dynamic ray tracing; elliptical Gaussian beam; kinematic ray tracing; quantum cascade laser; terahertz holographic image system; Kinematics; Laser beams; Mirrors; Optical reflection; Physical optics; Quantum cascade lasers; Ray tracing;
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2013 IEEE
Conference_Location :
Orlando, FL
Print_ISBN :
978-1-4673-5315-1
DOI :
10.1109/APS.2013.6711800
