Abstract
Recently, ultrafast VCSELs have been attracting much interest for optical interconnects in dater centers and supercomputers. One path to expand the bandwidth is using the optical feedback effect [1-3]. In this paper, a lateral-coupled cavity scheme for increasing the modulation bandwidth of VCSELs is demonstrated. Results show that the bandwidth is increased to go beyond 25GHz of the photo detector limitation.
© 2013 Japan Society of Applied Physics, Optical Society of America
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