PHASE-NOISE-LIMITED ACCURACY OF DISTANCE MEASUREMENTS IN A FREQUENCY-MODULATED CONTINUOUS-WAVE LIDAR WITH A TUNABLE TWIN-GUIDE LASER-DIODE

被引：24

作者：

DIECKMANN, A ^{[1
]}

AMANN, MC ^{[1
]}

机构：

[1] UNIV KASSEL,DEPT ELECT ENGN FB16,WORKING GRP SEMICOND ELECTR & OPTOELECTR III IV,D-34109 KASSEL,GERMANY

来源：

OPTICAL ENGINEERING | 1995年 / 34卷 / 03期

关键词：

OPTICAL RADAR; SEMICONDUCTOR LASERS; FMCW-LIDAR; PHASE NOISE; FREQUENCY NOISE; RELATIVE ACCURACY OF DISTANCE MEASUREMENTS;

D O I：

10.1117/12.190442

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The realization of a coherent frequency-modulated continuous-wave LIDAR aimed for the accurate measurement of short distances employing a distributed feedback tunable twin-guide laser diode is demonstrated. Theoretical calculations on the ultimate limits in accuracy of distance measurements as determined by the laser phase noise are carried out. A relative accuracy of 8x10(-5) (8 mu m) for a single-shot measurement has been achieved at a distance of 10 cm, which is significantly better than expected from the laser linewidth. The results presented here prove the predictions calculated from theory.

引用

页码：896 / 903

页数：8

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