Ouellette F, Hill K O, Johnson D C
Opt Lett. 1988 Jun 1;13(6):515-7. doi: 10.1364/ol.13.000515.
Self-organized chi((2)) gratings in optical fiber, prepared by irradiating the fiber with 1.06-microm light from a Q-switched mode-locked Nd:YAG laser simultaneously with its second harmonic, can be erased optically. This is accomplished by irradiating the prepared fiber with the 532-nm mode-locked Q-switched light alone, without the 1.06-microm light, or with intense green or blue light from an argon laser. The erasure is reversible, and the fiber can be reprepared as before for second-harmonic conversion. The nonexponential time dependence of the erasure process can be explained by a model involving charge separation during seeding and recombination during erasure.
通过用调Q锁模Nd:YAG激光器发出的1.06微米光及其二次谐波同时照射光纤制备的光纤中的自组织χ(2)光栅可以被光擦除。这是通过仅用532纳米锁模调Q光照射已制备好的光纤来实现的，不使用1.06微米光，或者用氩激光器发出的强绿光或蓝光照射。擦除是可逆的，并且光纤可以像之前一样重新制备用于二次谐波转换。擦除过程的非指数时间依赖性可以用一个涉及成核过程中的电荷分离和擦除过程中的复合的模型来解释。
