【摘要】 集成混沌激光器是高速混沌保密通信和高速密钥产生与分发的关键器件，现有集成混沌激光器的混沌带宽无法满足高速应用需求。本文聚焦于集成宽带混沌半导体激光器的研制，基于团队前期研制的短腔分布反馈半导体激光器芯片，分析集成空间光反馈结构中实现强光反馈的条件，优化反馈腔长度，最终制备了光纤/空间双端出光的短腔分布反馈半导体激光器。将其与反射镜及调节装置实现集成化，研制出体积为16 cm×8 cm×7 cm的集成宽带混沌半导体激光器，混沌带宽超过30 GHz。更多还原

【Abstract】 Integrated chaotic lasers play a crucial role in high-speed chaotic secure communication, key generation, and distribution. However, the existing chaotic bandwidth of integrated chaotic lasers fails to meet the requirements of high-speed applications. Therefore, this study focuses on the development of integrated broadband chaotic semiconductor lasers. Based on a short-cavity distributed feedback semiconductor laser chip developed by the team in the early stage, the conditions for achieving strong light feedback in the integrated spatial light feedback structure are analyzed and the feedback cavity length is optimized. As a result, a short-cavity distributed feedback semiconductor laser with fiber/spatial dual output light is prepared. Subsequently, this laser is integrated with a reflector and adjustment device, resulting in the development of a compact 16 cm×8 cm×7 cm integrated broadband chaotic semiconductor laser with a chaotic bandwidth exceeding 30 GHz.更多还原