Spatial investigation of transverse mode turn-on dynamics in VCSELs

被引:11
|
作者
Mahmoud, SWZ [1 ]
Wiedenmann, D [1 ]
Kicherer, M [1 ]
Unold, H [1 ]
Jäger, R [1 ]
Michalzik, R [1 ]
Ebeling, KJ [1 ]
机构
[1] Univ Ulm, Optoelect Dept, D-89069 Ulm, Germany
关键词
laser modes; near-field measurements; optical fiber communication; semiconductor lasers; surface-emitting lasers;
D O I
10.1109/68.959347
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
Data transmission experiments with single-mode as well as multimode 850-nm vertical-cavity surface-emitting lasers (VCSELs) are carried out from a near-field point of view. Special attention is paid to important quantities like on/off-ratio and bit error rate (BER) A single-mode VCSEL oscillating on the fundamental LP01 mode shows no change in eye opening, on/off-ratio, and BER at different lateral fiber coupling positions. In the case of a multimode VCSEL oscillating both on the LP01 mode and LP11 donut mode, we observe a significant lateral change in the on/off-ratio, which plays an important role in BER measurements.
引用
收藏
页码:1152 / 1154
页数:3
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