Title :
Continuously distributed phase shifts in chirped DFB lasers using bent waveguides
Author :
Hillmer, Hartmut ; Grabmaier, A. ; Hansmann, S. ; Burkhard, H.
Author_Institution :
Forschungszentrum, Deutsche Telekom, Darmstadt
fDate :
9/1/1994 12:00:00 AM
Abstract :
The authors have implemented chirped distributed feedback (DFB) grating lasers with phase shifts [λ/8, 2λ/8 and 3λ/8] distributed continuously over various axial distances, using their recently proposed method for producing bent optical waveguides. The singlemode stability of the lasers with distributed phase shifts was found to be considerably higher than for lasers with abrupt phase shifts
Keywords :
distributed feedback lasers; laser frequency stability; optical communication equipment; optical waveguides; semiconductor lasers; axial distances; bent waveguides; chirped DFB lasers; continuously distributed phase shifts; singlemode stability;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19941004
