Title :
1.5 μm phase-shifted DFB lasers for single-mode operation
Author :
Sekartedjo, K. ; Eda, N. ; Furuya, Keiichi ; Suematsu, Yasuharu ; Koyama, Fumio ; Tanbun-Ek, T.
Author_Institution :
Tokyo Institute of Technology, Department of Physical Electronics, Tokyo, Japan
Abstract :
Fabrication and single-mode laser oscillation were demonstrated for modified DFB lasers where the phase of the corrugations was shifted at the centre by a quarter guided-wavelength and which, in principle, provided a resonance at the Bragg wavelength and stable single-mode oscillation. Phase-shifted corrugations were fabricated using electron-beam lithography.
Keywords :
distributed feedback lasers; electron beam lithography; laser modes; optical workshop techniques; semiconductor junction lasers; Bragg wavelength; corrugations; distributed feedback lasers; electron-beam lithography; phase-shifted DFB lasers; semiconductor junction lasers; single-mode laser oscillation; single-mode operation;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19840055
