A high birefringence Photonic Crystal Fiber(PCF) with a new structure for pressure sensing is presented.With the external lateral pressure
the effective refractive indexes of its two polarization states change and its birefringence alters accordingly.Pressure sensing is achieved by measuring the variations of the polarization state brought about by that of birefringence.Simulation results show that the birefringence PCF changes significantly under the lateral pressure
to the extent of as 0.7×10-5/MPa.
关键词
光子晶体光纤有限元法双折射变化压力传感
Keywords
photonic crystal fiberfinite element methodbirefringence changepressure sensing