High output power was achieved by using the coupling technique of a laser diode array(LDA) and a micro-lensed fiber.
根据808 nm大功率半导体激光列阵(LDA)的远场光场的分布特点,利用多模光纤柱透镜和光束转换装置对808 nm半导体激光列阵的发散角进行压缩整形,通过聚焦准直透镜将激光束耦合进入芯径为400μm的光纤,实现了30W的功率输出,其中最大耦合效率大于80%,光纤的数值孔径(NA)为0。
The principle of this technique is as follows: first linearly arranged beams are changed into circularly arranged beams by a fiber array so that the beam symmetry of a laser diode array can be greatly improved;then the circular laser beam from the fiber array is coupled into a single thin fiber by a micro-lens to reduce the beam diameter and improve its brightness.
首先借助光纤列阵实现光束由线性排列到圆形排列的转换,从而有效提高半导体激光列阵输出光束的对称性;然后通过微透镜将光纤列阵输出的圆对称光束耦合进入一根较细的光纤,以进一步压缩光斑直径并提高光束亮度。
High-power laser diode arrays are difficult to use directly in such fields as military, industry, and medicine because of their extremely asymmetric divergent beams (θ_x≈5°～10° and θ_y≈20°～35° ), i.
半导体激光列阵的输出光束有较大的发散角和较强的不对称性,极大地限制了其在各领域中的应用。
Separate heat source profile basing on structure of semiconductor laser array is applied in thermal resistance calculation of microchannel heatsink as boundary condition.
针对现有高光束质量大功率半导体激光阵列内部发光单元条宽、填充因子不断减小,腔长不断增加的发展趋势所带来的热源分布及长度变化影响器件热阻的问题,利用分离热源边界条件结合商用计算流体力学(CFD)软件FLUENT进行数值计算,获得微通道热沉热阻随阵列器件发光单元条宽、空间位置变化关系以及不同阵列腔长对应的微通道优化长度。
Study on Coupling Technology between Double-Cladding Fiber and Laser Diode Array;
半导体激光列阵与双包层光纤耦合技术的研究
Experimental and Theoretical Study on Improvement of the Beam Quality of High Power Diode Laser Array
提高大功率半导体激光列阵光束质量的实验和理论研究
semiconductor laser array techniques
半导体激光阵列技术
Study on 1450nm High Power Semiconductor Laser Array;
1450nm大功率半导体激光器阵列研究
High power high duty-cycle 808 nm wavelength laser diode
808nm高占空比大功率半导体激光器阵列
Spectrum and wavelength tuning of laser diode array positioned inside an external cavity defined by a volume Bragg grating
体光栅外腔半导体激光器列阵的光谱及调谐
The Study on Improvement of the Beam Quality of High Power Diode Laser Array;
改善大功率半导体激光阵列光束质量的研究
Research on High Power Diode Laser Bidirectional Coupling with Optical Fiber;
大功率半导体激光器列阵的光纤双向耦合研究
Design of Fiber Coupled Module of Semiconductor Laser and It s Array;
半导体激光器及其列阵光纤耦合模块的研制
The Study of the Coupling of High Power LDA and Fibers;
大功率半导体激光器列阵与光纤耦合的研究
Theory and Experimental Study on Coherent Fiber Coupling of Laser Diode Array;
半导体激光阵列光纤相干耦合理论与实验研究
Research on Large Area Semiconductor Laser Array Shaping
大面积半导体激光器阵列光束整形研究
Research on Non-destructive Test for Semiconductor Lasers and Laser Arrays;
半导体激光器及其列阵的无损检测技术研究
Aluminium-Free Semiconductor Laser Arrays and Their Assembling Techniques;
无铝半导体激光器列阵及其组装技术的研究
Study on the Array and Semiconductor Power Amplification Laser of InGaAsP/InP;
InGaAsP/InP半导体功率放大激光器及列阵的研究
General Discussion on Phase Locking of Broad Stripe Diode Arrays by External Cavity;
半导体激光器列阵外腔锁相的一般性分析
Study on the Heat Disspation of High Power Semiconductor Laser Arrays;
大功率半导体激光器列阵散热技术的研究
Static and Transient Thermal Behavior of High Power Semiconductor Lasers
大功率半导体激光器阵列的稳态和瞬态热行为