학술논문
Development of a variable spectral-width, wavelength-tunable light source using a superluminescent diode with optical feedback
Document Type
Author abstract
Report
Report
Author
Source
American Journal of Physics. August, 2008, Vol. 76 Issue 8, p769, 8 p.
Subject
Language
English
ISSN
0002-9505
Abstract
We have constructed a variable spectral-width, wavelength-tunable light source using a non-fiber-coupled broadband superluminescent diode device with an optical feedback mechanism. As lasing occurs, a strong output light which is linearly polarized and monochromatic is obtained. The spectral width varies with the injection current and the optical feedback ratio. By incorporating a dispersing prism into the feedback branch, a wavelength-tunable, external-cavity-feedback laser source is achieved. The result is a convenient, inexpensive apparatus suitable for experiments in undergraduate optics courses.