Phase-shifting laser diode interferometer using pulse modulation |
| |
Authors: | Suzuki Takamasa Adachi Tsubasa Sasaki Osami Choi Samuel |
| |
Affiliation: | Niigata University, Graduate School of Science and Technology, Niigata, Japan. takamasa@eng.niigata-u.ac.jp |
| |
Abstract: | 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. |
| |
Keywords: | |
本文献已被 PubMed 等数据库收录! |
|