Improving single-mode VCSEL performance by introducing a long monolithic cavity

被引:94
作者
Unold, HJ [1 ]
Mahmoud, SWZ [1 ]
Jäger, R [1 ]
Kicherer, M [1 ]
Riedl, MC [1 ]
Ebeling, KJ [1 ]
机构
[1] Univ Ulm, Optoelect Dept, D-89081 Ulm, Germany
关键词
distributed Bragg reflector lasers; laser modes; laser resonators; semiconductor lasers;
D O I
10.1109/68.867967
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
We report on the improvement of several selectively oxidized vertical-cavity surface emitting laser characteristics by introducing a long monolithic cavity. The samples compared are grown with various cavity lengths using solid-source MBE. The 980 nm-regime is chosen as emission wavelength to facilitate growth by using binary GaAs cavity spacers. A record high single-transverse mode output power of 5 mW at a series resistance of 98 Ohm is obtained for a 7-mu m aperture device with a 4-mu m cavity spacer. Using an 8-mu m cavity spacer, devices up to 16-mu m aperture diameter emit 1.7 mW of single-mode power with a full-width at half-maximum far-field angle below 3.8 degrees.
引用
收藏
页码:939 / 941
页数:3
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