外腔可调谐半导体激光器准直系统测试研究(特邀)  

Collimation System of External Cavity Tunable Diode Lasers(Invited)

作　　者：董建涛 陈振文 盛立文 黄琳 DONG Jiantao;CHEN Zhenwen;SHENG Liwen;HUANG Lin(Ceyear Technologies Co,Ltd.,Qingdao,China;School of Electronic Engineering,Xidian Universits,Xi'an,China;Science and Technology on Electronic Test&Measurement Laboratory,Qingdao,China;School of Information Science and Engineering,Shandong University,Qingdao,China)

机构地区：[1]中电科思仪科技股份有限公司,山东青岛 [2]西安电子科技大学电子工程学院,西安 [3]电子测试技术重点实验室,山东青岛 [4]山东大学信息科学与工程学院,山东青岛

出　　处：《光电技术应用》2024年第2期56-59,共4页Electro-Optic Technology Application

摘　　要：为了解决外腔可调谐半导体激光器波长调谐范围小的问题,对高斯光束在谐振腔内的传输特性进行了分析。结果表明,将增益芯片出射光束调整至发散角较小实现准直的方式不利于拓展波长调谐范围。针对一种涵盖1480~1640nm波段的Littman-Metcalf外腔可调谐半导体激光器,提出一种将光腰位置调整至与外腔长度相等的准直方案。经过仿真研究,相较于小发散角的准直方式,采用该方式准直后,可调谐半导体激光器的调谐范围得到大幅提升。In order to solve the problem of small wavelength tuning range of external cavity tunable diode lasers,the transmission characteristics of Gaussian beam in the resonator are analyzed.Results show that adjusting the output beam of gain chip to a small divergence angle to achieve collimation is not conductive to expand the wavelength tuning range.For a Littman-Metcalf tunable diode laser covering 1480~1640 nm,a collimation scheme is proposed by adjusting the waist position to equal the length of the external cavity.The simulation results show that the tuning range of the tunable diode laser can be greatly improved by using this collimation method compared with the collimation method with small divergence angle.

关 键 词：外腔 半导体激光器 高斯光束 准直 调谐范围 

分 类 号：TN248.4[电子电信—物理电子学]