13 April 2005 Photonic crystal coupled-cavity waveguides with asymmetric-defect structure for narrow spectral widths at 1.55 microns
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Proceedings Volume 5733, Photonic Crystal Materials and Devices III; (2005); doi: 10.1117/12.591038
Event: Integrated Optoelectronic Devices 2005, 2005, San Jose, California, United States
Abstract
A new type of photonic crystal (PC) based coupled-cavity waveguide (CCW), called an asymmetrical-defect coupled-cavity waveguide (AD-CCW), is presented. AD-CCWs produce single mode output with significantly narrower linewidths than conventional symmetrical-defect CCWs. We describe two different AD-CCW designs in two PC material systems: an alternating defect AD-CCW based on a silicon PC, and an incrementing defect AD-CCW based on an InGaAsP PC. The structures are simulated using three-dimensional (3D) finite-difference time-domain (FDTD) calculations. A comparison of AD-CCWs and conventional CCWs is presented based on the simulation results.
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John William Zeller, Faquir Jain, "Photonic crystal coupled-cavity waveguides with asymmetric-defect structure for narrow spectral widths at 1.55 microns", Proc. SPIE 5733, Photonic Crystal Materials and Devices III, (13 April 2005); doi: 10.1117/12.591038; https://doi.org/10.1117/12.591038
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KEYWORDS
Waveguides

Silicon

Cladding

Finite-difference time-domain method

Photonic crystals

3D modeling

Light wave propagation

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