研究目的
Investigating the evanescent field coupling effect on two optical fiber sensors to understand the sensor operation in terms of optical power loss and coupling coefficient.
研究成果
The numerical analysis performed by 2D OptiBPM is able to predict the physical parameters measurements and understand the principle operation of the optical fiber waveguide. The change in refractive index in the sensing region is detected by measuring the change in optical power loss. The performance of the device is found satisfactory for using to build higher order multi-sensor.
研究不足
The study is limited to numerical simulation and does not include experimental validation. The performance of the device is analyzed based on simulation results only.
1：Experimental Design and Method Selection:
The study employs the beam propagation method (BPM) for numerical simulation of two optical fibers aligned side by side.
2：Sample Selection and Data Sources:
The simulation uses a single mode silica core layer as a sensor with a surrounding refractive index of wafer ranging from
3：00 to List of Experimental Equipment and Materials:
Optical simulation software OptiBPM is used for 2-D modal analysis.
4：Experimental Procedures and Operational Workflow:
The waveguide was designed to operate at the standard optical communications wavelength at 1550nm. The changes in evanescent field coupling are investigated by changing the distance between the two fibers.
5：Data Analysis Methods:
The output power distribution is analyzed as the distance between two optical fibers changes.
独家科研数据包，助您复现前沿成果，加速创新突破
获取完整内容
