Abstract
We report experimental observations of the negative-group-velocity (v_g) phenomenon in an integrated-optical two-port ring-resonator circuit. We demonstrate that when the v_g is negative, the (main) peak of output pulse appears earlier than the peak of a reference pulse, while for a positive v_g, the situation is the other way around. We observed that a pulse splitting phenomenon occurs in the neighborhood of the critical-coupling point. This pulse splitting limits the maximum achievable delay and advancement of a single device as well as facilitating a smooth transition from highly advanced to highly delayed pulse, and vice versa, across the critical-coupling point.
Original language | Undefined |
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Pages (from-to) | 2620-2622 |
Number of pages | 3 |
Journal | Optics letters |
Volume | 32 |
Issue number | Supplement/17 |
DOIs | |
Publication status | Published - Sep 2007 |
Keywords
- IOMS-SNS: SENSORS
- IR-62043
- METIS-245835
- EWI-11516