Phase-shifting laser diode interferometer using pulse modulation

被引：12
|
作者：
Suzuki, Takamasa [1 ]
Adachi, Tsubasa [1 ]
Sasaki, Osami [2 ]
Choi, Samuel [2 ]
机构：
[1] Niigata Univ, Grad Sch Sci & Technol, Niigata 9502181, Japan
[2] Niigata Univ, Fac Engn, Niigata 9502181, Japan
来源：
APPLIED OPTICS | 2012年 / 51卷 / 18期
关键词：
PHOTOTHERMAL MODULATION;
D O I：
10.1364/AO.51.004109
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A phase-shifting laser diode interferometer that uses direct pulse modulation is proposed and demonstrated. We found that a laser beam with a wide range of wavelength variation at constant optical power could be generated when a pulsed current was injected into the laser diode. We constructed a highly accurate interferometer by using a pair of interferometers. Several experiments, such as observations of temporal interference signals and spatial interferograms, measurement of a concave mirror, and duplicate measurements, confirmed the characteristics of pulse modulation and demonstrated the effectiveness of our technique. (C) 2012 Optical Society of America
引用
收藏
页码：4109 / 4112
页数：4
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