Timing phase noise reduction of modelocked quantum‐dot lasers by time‐delayed optoelectronic feedback. Issue 8 (1st April 2013)

• Record Type: Journal Article
• Authors: Drzewietzki, L.; Breuer, S.; Elsäßer, W.
• Is Part Of: Electronics letters. Volume 49:Issue 8(2013)
• Page Start: 557
• Page End: 559
• Publication Date: 2013-04-01
• Subjects: laser mode locking -- laser noise -- optical saturable absorption -- phase noise -- quantum dot lasers; all‐optical feedback configuration -- TPN measurement -- broadband reduction -- time‐delayed optical laser output -- absorber section -- electrical modulation -- passively mode locked semiconductor lasers -- opto‐electronic‐feedback stabilisation -- time‐delayed opto‐electronic feedback -- timing phase noise reduction -- mode locked quantum‐dot lasers; laser mode locking -- laser noise -- optical saturable absorption -- phase noise -- quantum dot lasers; all‐optical feedback configuration -- TPN measurement -- broadband reduction -- time‐delayed optical laser output -- absorber section -- electrical modulation -- passively mode locked semiconductor lasers -- opto‐electronic‐feedback stabilisation -- time‐delayed opto‐electronic feedback -- timing phase noise reduction -- mode locked quantum‐dot lasers; Electronics -- Periodicals; 621.381
• DOI: 10.1049/el.2013.0763
• Languages: English
• ISSNs: 0013-5194

Abstract

Abstract : 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.