New Cross-Coupled Resonator Induced Shifted Absorption (CRISA) in Double Microring Resonators Using a Cross-Coupling-Structure Technique
Document Type
Article
Publication Date
12-27-2022
Abstract
We report, for the first time to the best of our knowledge, a technique that employs ′cross-coupling structure’ in the cascaded microring resonators (MRRs) to bring new optical analogues of quantum coherence phenomena. The new configuration resembles a standard double resonator (SDR) but uses cross-coupled–based directional couplers (DCs) instead of the typical direct-coupled–based DCs. One of its unique features is that it does not exhibit the typical SDR’s signature quantum coherence analogue effects like coupled-resonator induced transparency (CRIT) or coupled-resonator induced absorption (CRIA). On the contrary, it produces a new very narrow reflection dip positioned at single-pass phase shift θ = − π/2 which we refer to as cross-coupled resonator induced shifted absorption (CRISA). We compare extensively CRISA’s characteristics with the CRIT, CRIA, and Autler-Townes splitting (ATS) found in SDR. The technique opens up new configurations with richer optical behaviours that could find potentially still unexplored applications.
Recommended Citation
Dingel, Benjamin and Ye, Bo, (2022). New Cross-Coupled Resonator Induced Shifted Absorption (CRISA) in Double Microring Resonators Using a Cross-Coupling-Structure Technique. Archīum.ATENEO.
https://archium.ateneo.edu/physics-faculty-pubs/138