Open AccessTiming phase noise reduction of modelocked quantum‐dot lasers by time‐delayed optoelectronic feedback
Author(s) -
Drzewietzki L.,
Breuer S.,
Elsäßer W.
Publication year - 2013
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
ISSN - 1350-911X
DOI - 10.1049/el.2013.0763
Subject(s) - optoelectronics , reduction (mathematics) , laser , phase noise , materials science , broadband , noise (video) , semiconductor laser theory , noise reduction , optics , optical communication , modulation (music) , semiconductor , physics , computer science , mathematics , geometry , artificial intelligence , acoustics , image (mathematics)
A novel optoelectronic‐feedback stabilisation scheme for passively modelocked semiconductor lasers is demonstrated. By electrical modulation of the absorber section with a signal directly obtained from the time‐delayed optical laser output, a significant broadband reduction of timing phase noise (TPN) is achieved without the use of a reference oscillator. The similarity to TPN measurement results obtained by an all‐optical feedback configuration suggests that the presented optoelectronic and the all‐optical feedback configuration are based on a common underlying TPN reduction mechanism.