USE OF A MULTIMODE SHORT-EXTERNAL-CAVITY LASER-DIODE FOR ABSOLUTE-DISTANCE INTERFEROMETRY

被引:13
作者
DEGROOT, P [1 ]
机构
[1] BOEING HIGH TECHNOL CTR, SEATTLE, WA 98124 USA
来源
APPLIED OPTICS | 1993年 / 32卷 / 22期
关键词
D O I
10.1364/AO.32.004193
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
The author considers the resonant-mode structure of a three-wall Fabry-Perot laser-diode cavity in the context of multiple-color interferometric techniques for determining absolute distance. It is found that the theoretical emission spectrum for a dispersive gain medium such as GaAlAs in such a cavity can be used to generate synthetic wavelengths from less than 200 mum to more than a meter with a single laser diode. The emission characteristics and their use in distance measurements are then illustrated experimentally by using a commercially available short-external-cavity device operated near threshold.
引用
收藏
页码:4193 / 4198
页数:6
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