Long period fiber grating (LPFG) is a new kind of optical fiber element.
长周期光纤光栅是一种新型光纤器件。
The progress in fabrication method of long period fiber grating (LPFG) is introduced.
介绍了长周期光纤光栅制作技术上的进展。
A kind of fiber voltage sensing system based on long period fiber grating is designed.
设计了一种基于长周期光纤光栅的电压传感系统。
The spectral characteristics of a long period fiber grating is analyzed by using the coupled mode theory.
本文应用耦合模理论分析了长周期光栅的光谱特性。
The transmission spectrum of a novel long period fiber grating written with the high frequency CO2 laser pulses is theoretical analyzed.
对采用高频CO2激光脉冲写入的新型长周期光纤光栅的透射谱进行了理论分析。
As the refractive index of the overlay is higher than that of the cladding, the Long Period fiber Grating (LPG) element exhibits high sensitivity.
对于涂覆长周期光纤光栅(LPG)传感元件，涂覆层折射率大于包层折射率时将具有很高的灵敏度。
Long period fiber grating (LPG) is designed as the filter component of edge linear filtering demodulation system for fiber Bragg grating (FBG) temperature sensor.
长周期光纤光栅是特定波长范围内的线性滤波器件，该文设计了长周期光纤光栅解调的布拉格光纤光栅温度传感系统。
A method to analyze the resonant wavelength and damping decrement of the transmission spectrum of long period fiber grating (LPFG) with bending curvature was reported.
报道了一种分析长周期光纤光栅(LPFG)透射谱谐振波长和衰减率随弯曲曲率变化的方法。
An edge filter demodulation of fiber Bragg grating (FBG) displacement measuring scheme using long period grating (LPG) is reported and demonstrated.
利用长周期光栅的边缘滤波解调技术，我们报道了一种光纤布喇格光栅位移传感方法。
The transverse load characteristics of twisted long-period fiber grating (LPFG) written by high-frequency CO2 laser pulses was demonstrated.
研究了高频CO2激光脉冲写入的长周期光纤光栅在扭曲状态下的横向负载特性。
Evanescent-field coupling based on long-period fiber grating (LPG) and bi-conical tapered fiber is proposed and investigated both theoretically and experimentally.
对长周期光纤光栅和双锥形光纤之间的倏逝波耦合作用进行了研究。
The present paper introduce mainly basic principle, device characteristic and making method of long-period fiber grating and outlines the application status in optical communication and sensor system.
介绍长周期光纤光栅基本工作原理、器件特性和制备方法，同时对这种器件在光通信和传感系统中的应用状况作了简要概述。
Several kinds of filters used in EDSFS are presented. Their advantages and disadvantages are introduced, the fabrication of long-period fiber grating filters are proposed briefly.
介绍了应用于掺铒光纤光源的几种滤波器的研究状况，阐述了它们的优缺点，简述了长周期光纤光栅滤波器的设计过程。
Recently, mechanically induced micro-bending long-period fiber grating (MBLPFG), have drawn lots of interests, because it has advantages of being reconfigurable, easy to adjust and low cost.
机械微弯长周期光纤光栅除了上述优点外还具有可重构、易调节、成本低等优点，成为近些年的研究热点。
In order to achieve flat multi-wavelength output, a long-period fiber grating with loss peak at 1530 nm is used to obtain flat gain spectrum.
为了获得平坦的多波长输出，在谐振腔里使用了一个损耗峰位于1530nm处的长周期光纤光栅，以获得较为平坦的增益谱。
In order to achieve flat multi-wavelength output, a long-period fiber grating with loss peak at 1530 nm is used to obtain flat gain spectrum.
为了获得平坦的多波长输出，在谐振腔里使用了一个损耗峰位于1530nm处的长周期光纤光栅，以获得较为平坦的增益谱。
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