Document Details

Document Type : Article In Journal 
Document Title :
Mode-competition noise associated with microwave modulation of multimode semiconductor lasers
Mode-competition noise associated with microwave modulation of multimode semiconductor lasers
 
Subject : physics 
Document Language : English 
Abstract : We analyze the mode-competition (MC) phenomenon and the associated noise in multimode semiconductor lasers at microwave modulation. The study is based on the multimode rate-equation model, which takes into account the mechanisms of modal gain suppression. The MC is evaluated by the correlation coefficients between oscillating modes in the laser cavity. We show that an increase in the modulation depth changes the mode coupling from anticorrelation to positive correlation and then to complete coupling, which corresponds to emission of periodic pulses. The frequency spectra of relative intensity noise (RIN) exhibit sharp peaks at the modulation frequency and higher harmonics. The increase in the modulation depth is associated with suppression of the total and modal RIN under highfrequency modulation and with noise enhancement under low-frequency modulation. 
ISSN : 1541-308X 
Journal Name : PHYSICS OF WAVE PHENOMENA 
Volume : 22 
Issue Number : 2 
Publishing Year : 1435 AH
2014 AD 
Article Type : Article 
Added Date : Wednesday, August 2, 2017 

Researchers

Researcher Name (Arabic)Researcher Name (English)Researcher TypeDr GradeEmail
A AhmedAhmed, A InvestigatorDoctoratemostafa.hafez@science.miniauniv.edu.eg
A BakryBakry, A ResearcherDoctorate 

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