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Faculty of Sciences
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 Type
Dr Grade
Email
X Gu
Gu, X
Investigator
Doctorate
gu.xiaodong@ms.pi.titech.ac.jp
M Nakahama
Nakahama, M
Researcher
Doctorate
A Matsutani
Matsutani, A
Researcher
Doctorate
M Ahmed
Ahmed, M
Researcher
Doctorate
A Bakry
Bakry, A
Researcher
Doctorate
F Koyama
Koyama, F
Researcher
Doctorate
Files
File Name
Type
Description
42691.pdf
pdf
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