25 July 2003 Hexagonal micropillar cavities: multimode resonances and open-loop resonance linewidth broadening
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Proceedings Volume 4986, Physics and Simulation of Optoelectronic Devices XI; (2003) https://doi.org/10.1117/12.474382
Event: Integrated Optoelectronics Devices, 2003, San Jose, CA, United States
Abstract
We report our proof-of-principle experiment and modeling of hexagonal micro-pillar cavities. A commercial hexagonal silica fiber (125μm plane-to-plane) was side-coupled perpendicularly with a Gaussian beam, thus the fiber acted as a μ-pillar cavity. We observed multimode resonances with typical Q ≈ 2,500 in the tangential directions that are ≈ 120° to the input-coupling cavity sidewall. The observed free spectral range (FSR) ≈ 4.5 nm is consistent with a six-bounce cavity round-trip length. By using wavefront-matching concept, the observed multimode resonances can be attributed to open-loop trajectories. The multiple wavefront-matched open-loop trajectories of the same ray incident angle can result in resonance linewidth broadening. We employed a k-space representation to calculate the hexagonal cavity normal mode locations.
© (2003) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Ning Ma, Ning Ma, Frankie Kim Lam Tung, Frankie Kim Lam Tung, Shing Fai Lui, Shing Fai Lui, Andrew W. Poon, Andrew W. Poon, } "Hexagonal micropillar cavities: multimode resonances and open-loop resonance linewidth broadening", Proc. SPIE 4986, Physics and Simulation of Optoelectronic Devices XI, (25 July 2003); doi: 10.1117/12.474382; https://doi.org/10.1117/12.474382
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