Title :
Novel method for high resolution measurement of laser output spectrum
Author :
Okoshi, Tadashi ; Kikuchi, Kazuro ; Nakayama, Atsushi
Author_Institution :
University of Tokyo, Department of Electronic Engineering, Tokyo, Japan
Abstract :
The spectral spread of the best stabilised semiconductor lasers has been reduced to several megahertz. Conventional spectroscopy techniques cannot offer a spectral resolution fine enough for measuring such a sharp spectrum. The letter proposes a novel method by which 50 kHz resolution can be obtained. The principle, experimental set-up and results are described.
Keywords :
semiconductor junction lasers; spectral analysers; high resolution measurement; semiconductor lasers; spectral spread;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19800437
