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首页> 外文会议>Conference on Integrated Optical Devices: Fabrication and Testing, Oct 30-Nov 1, 2002, Brugge, Belgium >Integrated optical DBR- and DFB- lasers in Er:LiNbO_3 with photorefractive gratings
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Integrated optical DBR- and DFB- lasers in Er:LiNbO_3 with photorefractive gratings

机译：具有光折射光栅的Er：LiNbO_3中的集成光学DBR和DFB-激光器

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摘要

A family of narrow linewidth integrated optical distributed Bragg reflector- (DBR-), distributed feedback- (DFB-), and DBR-/DFB-coupled cavity lasers with Er-doped LiNbO_3 single-mode waveguide is reviewed. They have one or two photorefractive gratings in Fe-doped waveguide sections. Two types of DBR-lasers have been developed. The first type has a cavity consisting of one Bragg-grating in a Ti:Fe:LiNbO_3 waveguide, a gain section with Ti:Er:LiNbO_3 waveguide, and a multi-layer dielectric mirror deposited on one polished end face. The second DBR-cavity consists of two gratings in Ti:Fe:LiNbO_3 on both sides of the Er-doped waveguide. Their power characteristics and spectral properties were investigated. Single-frequency operation could be achieved in the latter case at various wavelengths in the Er-band (1530nm < λ < 1575nm) with up to 1.12mW output power. A DFB-laser with two lowest-order modes has been demonstrated with a photorefractive grating in a Ti:Fe:Er:LiNbO_3 waveguide; it is combined with an integrated optical amplifier on the same substrate. Moreover, an attractive DBR/DFB coupled cavity laser has been developed and investigated. Its cavity consists of a photorefractive Bragg grating in the Ti:Fe:Er:LiNbO_3 waveguide section close to one end face of the sample, a Ti:Er:LiNbO_3 gain section and a broadband dielectric multi-layer mirror of high reflectivity on the other end face.
机译：综述了带有掺Er LiNbO_3单模波导的窄线宽集成光学分布式布拉格反射器（DBR-），分布式反馈（DFB-）和DBR- / DFB耦合腔激光器。它们在掺铁的波导段中有一个或两个光折变光栅。已经开发出两种类型的DBR激光器。第一种类型的腔体由一个在Ti：Fe：LiNbO_3波导中的布拉格光栅，一个具有Ti：Er：LiNbO_3波导的增益部分和一个沉积在一个抛光端面上的多层介电镜组成。第二个DBR腔由掺Er的波导两侧的Ti：Fe：LiNbO_3中的两个光栅组成。研究了它们的功率特性和光谱特性。在后一种情况下，可以在Er波段中的各种波长（1530nm <λ<1575nm）下实现单频工作，输出功率高达1.12mW。用Ti：Fe：Er：LiNbO_3波导中的光折变光栅演示了具有两种最低阶模式的DFB激光；它与同一衬底上的集成光放大器组合在一起。而且，已经开发并研究了有吸引力的DBR / DFB耦合腔激光器。它的腔体由靠近样品一个端面的Ti：Fe：Er：LiNbO_3波导部分中的光折变布拉格光栅，Ti：Er：LiNbO_3增益部分和另一侧上具有高反射率的宽带电介质多层反射镜组成端面。

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