Surface-emitting unstable-resonator lasers with integrated diffractive beam-forming elements
Surface-emitting unstable-resonator lasers with integrated diffractive beam-forming elements
复制标题
具有集成衍射光束形成元件的表面发射不稳定谐振腔激光器
DOI：
10.1109/68.643264
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发表时间：
1997
影响因子：
2.6
通讯作者：
A. Larsson
中科院分区：
文献类型：
--
作者：
N. Eriksson;J. Bengtsson;Ming Li;P. Modh;A. Larsson
光栅耦合面发射半导体激光器已经与聚焦和点阵列产生衍射光束形成元件集成。该激光器具有产生160-/spl mu/m宽的单空间模式的非稳定谐振腔。外耦合器元件的面积为160 /spl mu/m/spl乘以/240 /spl mu/m。对于聚焦在表面上方500 /spl mu/m处的外耦合器，光斑尺寸为9 /spl mu/m/spl乘以/17 /spl mu/m。光斑尺寸主要受导模波前中的像差限制。
Grating-coupled surface-emitting semiconductor lasers have been integrated with focusing and spot array generating diffractive beam-forming elements. The lasers have an unstable resonator producing a 160-/spl mu/m-wide single spatial mode. The area of the outcoupler element is 160 /spl mu/m/spl times/240 /spl mu/m. For an outcoupler focusing at 500 /spl mu/m above the surface the spot size is 9 /spl mu/m/spl times/17 /spl mu/m The spot size is primarily limited by aberrations in the wavefront of the guided mode.