Title :
Tuning dependent beam characteristics of continuously tunable laser diodes
Author :
Steffens, W.M. ; Nöding, M. ; Illek, S. ; Borchert, J. ; Amann, M.-C.
Author_Institution :
Dept. of Electr. Eng., Kassel Univ., Germany
fDate :
6/24/1999 12:00:00 AM
Abstract :
The beam characteristic of continuously tunable twin-guide (TTG) laser diodes has been investigated and it was observed that the beam profile is changed during tuning. This affects the coupling of the laser light into a fibre interface, leading to a reduction in transmitted optical power. It is shown how the coupling losses during tuning can be compensated for. An observed shift in the lateral far field has a high potential for the realisation of a continuously beam steering device.
Keywords :
laser tuning; beam characteristic; beam profile; c; compensated; continuously beam steering device; continuously tunable laser diodes; continuously tunable twin-guide laser diodes; coupling losses; fibre interface; laser light coupling; lateral far field shift; optical fibre coupling; transmitted optical power reduction; tuning; tuning dependent beam characteristics;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19990740
