Compact Optical Generation of Microwave Signals Using a Monolithic Quantum Dot Passively Mode-Locked Laser

Autor: C.-Y. Lin, Y.-C. Xin, J. H. Kim, C. G. Christodoulou, L. F. Lester
Jazyk: angličtina
Rok vydání: 2009
Předmět:
Zdroj: IEEE Photonics Journal, Vol 1, Iss 4, Pp 236-244 (2009)
Druh dokumentu: article
ISSN: 1943-0655
DOI: 10.1109/JPHOT.2009.2035523
Popis: Microwave signal generation from the saturable absorber of a monolithic quantum dot passively mode-locked laser is presented. We observe a differential efficiency of 33% that measures the optical-to-RF power conversion. An optimum extraction efficiency of the saturable absorber of about 86% is also found. To assess the stability of the device, the mode-locking operation regime of the quantum dot device is analyzed and compared to the quantum well system. Our findings confirm that quantum dot mode-locked lasers are suitable candidates for the optical generation of RF signals in a compact and efficient semiconductor device.
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