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Does photosensitivity pave the way towards the fabrication of miniature coherent light sources in inorganic glass waveguides?

机译：光敏性是否为在无机玻璃波导中制造微型相干光源铺平了道路？

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摘要

Photosensitivity designates the ability to permanently change the refractive index of a glass by optical processing. The phenomenon allows the fabrication of numerous phase structures, the simplest of which is the Bragg grating obtained by photoimprinting a periodic index modulation within the material. Bragg gratings have changed the way in which optical fibre (or planar waveguide) lasers are now used. Distributed Bragg Reflector (DBR) or Distributed Feed Back (DFB) lasers, when intracore Bragg gratings are used for linear cavity feedback, are commonly fabricated in rare earth doped optical silica-based fibres. On the other hand, photosensitivity can also result in effects which can prove to be detrimental to the fabrication of miniature coherent light sources. The paper will cover some of the advances that have been made in improving the photosensitivity of inorganic glasses, in searching new photosensitive materials and in characterizing Bragg grating properties relevant to laser applications.
机译：光敏性表示通过光学处理永久改变玻璃折射率的能力。这种现象允许制造许多相结构，其中最简单的是通过在材料内光压印周期性折射率调制而获得的布拉格光栅。布拉格光栅已经改变了现在使用光纤（或平面波导）激光器的方式。当将纤芯布拉格光栅用于线性腔反馈时，分布式布拉格反射器（DBR）或分布式反馈（DFB）激光器通常由稀土掺杂的光学二氧化硅基光纤制成。另一方面，光敏性也可以导致可能被证明不利于微型相干光源的制造的效果。本文将涵盖在改善无机玻璃的光敏性，寻找新的光敏材料以及表征与激光应用相关的布拉格光栅特性方面取得的一些进展。

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