Document Details

Document Type : Article In Journal 
Document Title :
850 nm transverse-coupled-cavity vertical-cavity surfaceemitting laser with direct modulation bandwidth of over 30 GHz
850 nm transverse-coupled-cavity vertical-cavity surfaceemitting laser with direct modulation bandwidth of over 30 GHz
 
Subject : physics 
Document Language : English 
Abstract : An 850-nm-band transverse-coupled-cavity vertical-cavity surface-emitting laser (VCSEL) is demonstrated for the first time, showing a 3 dB modulation bandwidth of over 30 GHz, which is the record for VCSELs. The transverse-coupled cavity is formed by making lithography-defined, battledoreshaped mesas. The coupling strength can be increased by reducing the absorption loss in a passive feedback cavity. Further increase in the coupling strength and/or mode selection via current injection into the feedback cavity shows the possibility of overclocking the device by optical equalization. Largesignal measurement shows eye-opening at 40 Gb/s. After the coupled mode is stabilized, higher bitrate modulation can be expected 
ISSN : 1882-0778 
Journal Name : APPLIED PHYSICS EXPRESS 
Volume : 8 
Issue Number : 8 
Publishing Year : 1435 AH
2015 AD 
Article Type : Article 
Added Date : Sunday, August 20, 2017 

Researchers

Researcher Name (Arabic)Researcher Name (English)Researcher TypeDr GradeEmail
X GuGu, X InvestigatorDoctorategu.xiaodong@ms.pi.titech.ac.jp
M NakahamaNakahama, M ResearcherDoctorate 
A MatsutaniMatsutani, A ResearcherDoctorate 
M AhmedAhmed, M ResearcherDoctorate 
A BakryBakry, A ResearcherDoctorate 
F KoyamaKoyama, F ResearcherDoctorate 

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