All-optical inverter based on long-wavelength vertical-cavity surface-emitting laser
- 27 December 2005
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Journal of Selected Topics in Quantum Electronics
- Vol. 11 (5) , 999-1005
- https://doi.org/10.1109/jstqe.2005.854279
Abstract
An all-optical inverter using transverse mode switching in a 1.5-/spl mu/m vertical-cavity surface-emitting laser (VCSEL) was demonstrated theoretically and experimentally. The fundamental mode in a single-mode VCSEL was strongly suppressed when external light was injected into an LP02 high-order mode, resulting in an on-off ratio of over 20 dB. The polarization dependence of the static optical input--output characteristics of inverter operations was as low as /spl sim/13%. The VCSEL-based optical inverter operated with a 5-Gb/s nonreturn-to-zero (NRZ) input signal. A theoretical result using two-mode rate equations is in good agreement with experimental results.Keywords
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