紫外均匀曝光对长周期光纤光栅耦合特性的影响
자외균균폭광대장주기광섬광책우합특성적영향
Effect of UV Uniform Exposure on Coupling Characteristics of Long-Period Fibre Gratings
  • 万方数据
    光学学报 광학학보
    ACTA OPTICA SINICA
    2001年 2期 147-149 ,共3页

    关柏鸥%Tam H Y%Ho S L%董孝义

    관백구%Tam H Y%Ho S L%동효의

    长周期光纤光栅%耦合特性%紫外均匀曝光 長週期光纖光柵%耦閤特性%紫外均勻曝光
    장주기광섬광책%우합특성%자외균균폭광
    写于载氢光纤上的长周期光纤光栅经过高温退火后，对其进行紫外均匀曝光能够有效改变其耦合特性。随着曝光量的增加，其共振波长向长波方向移动，共振峰强度先增大继而减小。并对此给出了理论解释。
    사우재경광섬상적장주기광섬광책경과고온퇴화후，대기진행자외균균폭광능구유효개변기우합특성。수착폭광량적증가，기공진파장향장파방향이동，공진봉강도선증대계이감소。병대차급출료이론해석。
    UV uniform exposure can effectively vary the coupling characteristics of the annealed long-period gratings (LPGs) in hydrogen-loaded fiber. With the increase of UV exposure, the resonance wavelength shifts toward longer wavelength and resonance peak intensity increases first and then decreases. A theoretical explanation for this phenomenon has been given.
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