Optical Engineering
偏振依赖型长周期光纤光栅
Polarization-dependent long-period fiber gratingA fiber optic device formed by inducing birefringence in an optical fiber using a femtosecond laser, which creates a periodic modulation of the refractive index. This structure couples light between the core mode and co-propagating cladding modes, resulting in wavelength-dependent attenuation that is sensitive to external perturbations. / 一种利用飞秒激光在光纤中诱导双折射而形成的光纤器件，其折射率呈周期性调制。该结构将纤芯模与同向传播的包层模耦合，产生波长依赖的衰减，对外部扰动敏感。
- Knowledge type
- 物理设备
- First proposed or discovered
- Proposer
- Turkey Farm member
- Creator
- 农场主
- Last updated
- 2026-11-15 22:06:10
Sub-knowledge points
Femtosecond laser-induced birefringenceCore-cladding mode couplingWavelength-selective attenuation
Higher-order knowledge points
Main parameters and performance indicators
Birefringence: Induced by femtosecond laserPeriodicity: Determines the coupling wavelengthSensitivity: Dependent on polarization state
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Related literature
ranked by community starsPolarization-dependent long-period fiber grating enabled by femtosecond laser-induced birefringence for sensingOpen source
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1 recordsRecord title: Polarization-dependent long-period fiber grating.
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