Suppressing the turn-off-induced pulsations in VCSELs using an elevated oxide-layer structure
Optics Express, Vol. 18, Issue 2, pp. 1271-1277 (2010)
http://dx.doi.org/10.1364/OE.18.001271
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Abstract
We have demonstrated that, in elevated oxide-layer vertical-cavity surface-emitting lasers (VCSELs) where the spacing between 1–λ cavity and oxide layer is 9λ/4, a variety of turn-off-induced abnormalities such as secondary pulsations, bumps and tails is effectively suppressed. Compared are turn-off transient responses of conventional and elevated oxide-layer VCSELs with the oxide-aperture diameter of approximately 6.6 μm. The “on”- and “off”-current dependence of the turn-off-induced transient responses and bit rate dependence of the timing jitters show that the elevated oxide-layer structure effectively suppresses the turn-off-induced pulsations to less than half of the conventional one, which enables the VCSEL transmitter to operate without deleterious effects by the turn-off-induced pulsation.
© 2010 Optical Society of America
OCIS Codes
(140.3570) Lasers and laser optics : Lasers, single-mode
(230.0250) Optical devices : Optoelectronics
(140.7260) Lasers and laser optics : Vertical cavity surface emitting lasers
ToC Category:
Lasers and Laser Optics
History
Original Manuscript: November 25, 2009
Revised Manuscript: January 6, 2010
Manuscript Accepted: January 6, 2010
Published: January 11, 2010
Citation
Taeyong Kim and Sang-Bae Kim, "Suppressing the turn-off-induced pulsations in VCSELs using an elevated oxide-layer structure," Opt. Express 18, 1271-1277 (2010)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-18-2-1271
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References
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