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Comparison of monolithic optical frequency comb generators based on Passively Mode-Locked Lasers for Continuous Wave mm-Wave and Sub-THz Generation

机译:用于连续波毫米波和亚太赫兹生成的基于被动锁模激光器的单片光频梳发生器的比较

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摘要

In this paper, two different Passive Mode-Locked Laser Diodes (PMLLD) structures, a Fabry-Perot cavity and a ring cavity laser are characterized and evaluated as monolithic Optical Frequency Comb Generators (OFCG) for CW sub-THz generation. An extensive characterization of the devices under study is carried out based on an automated measurement system that systematically evaluates the dynamic characteristics of the devices, focusing on the figures of merit that define the optimum performance of a pulsed laser source when considered as an OFCG. Sub-THz signals generated with both devices at 60 GHz and 90 GHz are presented and analyzed in terms of electrical linewidth to compare such components for mm-Wave and sub-THz photonic generation. This work offers a systematic comparison of PMLLD devices for OFCG operation and provides reference information of the performance of two different device topologies that can be used for the implementation of photonic integrated sub-THz CW generation.
机译:在本文中,对两种不同的无源锁模激光二极管(PMLLD)结构,法布里-珀罗腔和环形腔激光器进行了表征,并将其评估为用于产生CW次THz的单片光学频率梳状发生器(OFCG)。在自动测量系统的基础上,对被研究设备进行了广泛的表征,该系统对设备的动态特性进行了系统评估,重点是在被视为OFCG时定义了脉冲激光源最佳性能的品质因数。展示并分析了两个器件在60 GHz和90 GHz下产生的次THz信号,并根据电气线宽进行了分析,以比较毫米波和次THz光子产生的此类分量。这项工作提供了用于OFCG操作的PMLLD器件的系统比较,并提供了可用于实现光子集成次THz CW生成的两种不同器件拓扑性能的参考信息。

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