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Proceedings Paper

Simulating the propagation of laser in integrated optical components
Author(s): Qingsong Wu; Zhene Xu; Zhiguo Tan; Shimin Li; Qiong Xie
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Paper Abstract

Computer-aided design, analysis and numerical simulation have more and more often been used in the design and simulation of integrated optical components. BPM, one of the popular numerical methods is effective at the Slowly Varying Envelope Approximation (SEVA). But the current integrated device is so complex that the SEVA is not satisfied any more. Finite-difference Time Domain (FDTD) is a method by which the Maxwell equations are directly discretized and resolved without any approximation. With continuous increasing of computing power, FDTD, as a powerful tool in microwave technology, can be employed in the optical domain. The general theory of FDTD and its basic formulation in orthogonal coordinate system are given at the beginning of this paper. Then the absorbing boundary condition and the criterion for stability are also discussed. At last the validation of this method is analyzed and a conclusion is drawn through a practical example to simulate the propagation in a film wave-guide of a diode laser light with wavelength around 1.55 micrometers . This method could be used in the design and analysis of other optical integrated device.

Paper Details

Date Published: 8 September 1999
PDF: 5 pages
Proc. SPIE 3862, 1999 International Conference on Industrial Lasers, (8 September 1999); doi: 10.1117/12.361136
Show Author Affiliations
Qingsong Wu, Huazhong Univ. of Science and Technology (China)
Zhene Xu, Huazhong Univ. of Science and Technology (China)
Zhiguo Tan, Huazhong Univ. of Science and Technology (China)
Shimin Li, Huazhong Univ. of Science and Technology (China)
Qiong Xie, Huazhong Univ. of Science and Technology (China)


Published in SPIE Proceedings Vol. 3862:
1999 International Conference on Industrial Lasers
Fuxi Gan; Horst Weber; Zaiguang Li; Qingming Chen, Editor(s)

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