Up to 40 Gb/s Directly Modulated Laser Operating at Low Driving Current: Buried-Heterostructure Passive Feedback Laser (BH-PFL)

Up to 40 Gb/s Directly Modulated Laser Operating at Low Driving Current: Buried-Heterostructure Passive Feedback Laser (BH-PFL)

A directly modulated 1.55-μm buried-heterostructure passive feedback laser exhibits a high modulation bandwidth of up to 34 GHz at moderate distributed-feedback (DFB) section currents between 20 and 60 mA. A very flat frequency response and a low alpha parameter have been demonstrated in the small s...

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Bibliographic Details
Published in:IEEE photonics technology letters Vol. 24; no. 5; pp. 362 - 364
Main Authors: Kreissl, J., Vercesi, V., Troppenz, U., Gaertner, T., Wenisch, W., Schell, M.
Format: Journal Article
Language:English
Published: IEEE 01-03-2012
Subjects:
Bandwidth
Chirp
Directly modulated laser (DML)
Distributed feedback devices
distributed-feedback (DFB) laser
InGaAsP/InP
integrated optics
Laser feedback
Modulation
Optical transmitters
Waveguide lasers
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Description
Summary:A directly modulated 1.55-μm buried-heterostructure passive feedback laser exhibits a high modulation bandwidth of up to 34 GHz at moderate distributed-feedback (DFB) section currents between 20 and 60 mA. A very flat frequency response and a low alpha parameter have been demonstrated in the small signal modulation analysis. The device has open eyes at data rates of 25 and 40 Gb/s with reduced frequency chirp.
ISSN:1041-1135
1941-0174
DOI:10.1109/LPT.2011.2179530