半导体光电, 2017, 38 (5): 677, 网络出版: 2017-11-24
薄膜型光纤F-P腔传感器弧形腔效应的补偿
Compensation of Diaphragm-Based F-P Fiber Sensor Due to the Arc-End Effect
弧形光F-P腔 薄膜型光纤F-P腔传感器 F-P干涉 基尔霍夫衍射方程 弧形腔散射效应 arc-end optical F-P cavity diaphragm-based F-P fiber sensor F-P interference Kirhoff’s diffraction formalism arc-end scattering effect
摘要
讨论并仿真了薄膜型光纤F-P腔传感器弧形腔效应的补偿。当一个薄膜型光纤F-P腔传感器的形变位移足够显著时,将产生弧形腔效应而使其不再完全服从平行平面腔传播模式规律。此时必须对平行平面腔的传播模式进行修正以符合弧形腔的实际规律。利用基尔霍夫衍射方程对弧形腔模型进行了计算和仿真,确定了弧形腔的散射效应,并基于一种典型腔长解调方法,提出了弧形腔效应下,腔长解调值的补偿方案。
Abstract
The compensation of the diaphragm-based F-P fiber sensor due to the arc-end effect is discussed and simulated in this paper. The arc-end effect happens when the displacement of a diaphragm-based F-P fiber sensor is significant enough, making it impropriate to treat the diaphragm as a plane. Thus, the propagation pattern of the parallel plane cavity must be modified to conform to the actual law of the arc-end fiber sensor. The model of the arc-end cavity is calculated and simulated by using Kirhoff’s diffraction formalism and the arc-end scattering effect is determined. Also, the compensation method of the cavity length is presented based on a typical demodulation method.
杜旭, 霍力, 喻乐, 张敏. 薄膜型光纤F-P腔传感器弧形腔效应的补偿[J]. 半导体光电, 2017, 38(5): 677. DU Xu, HUO Li, YU Le, ZHANG Min. Compensation of Diaphragm-Based F-P Fiber Sensor Due to the Arc-End Effect[J]. Semiconductor Optoelectronics, 2017, 38(5): 677.