|Table of Contents|

Micro-displace Measurement Based on Self-mixing Interferenceof Fiber Laser(PDF)

《南京师大学报（自然科学版）》[ISSN:1001-4616/CN:32-1239/N]

Issue:
2014年04期
Page:
46-
Research Field:
物理学
Publishing date:

Info

Title:
Micro-displace Measurement Based on Self-mixing Interferenceof Fiber Laser
Author(s):
Hao Hui; He Xiangdong; Guo Dongmei
Jiangsu Key Lab on Opto-Electronic Technology,School of Physics and Technology,Nanjing Normal University,Nanjing 210023,China
Keywords:
self-mixing interference; fiber laser; micro-displace measurement; phase modulation
PACS:
TN24
DOI:
-
Abstract:
Micro-displacement measurement based on self-mixing interference using a fiber laser system is demonstrated.Sinusoidal phase modulation technique is introduced into the fiber laser self-mixing interference measurement system to improve the measurement resolution.The phase can be demodulated by four-integrating-bucket method.Error sources are evaluated in detail,and the system is experimentally applied to reconstruct the motion of a high-precision commercial translation stage.The displacement measurement accuracy is well beyond one half wavelength.It provides a practically solution for displacement measurement based on all fiber sensing applications with high precision.

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Last Update: 2014-12-31