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Efficient- and Broadband-Coupled Selective Spot-Size Converters With Damage-Free Graphene Integration Process
- Source :
- IEEE Photonics Journal, Vol 6, Iss 3, Pp 1-9 (2014)
- Publication Year :
- 2014
- Publisher :
- IEEE, 2014.
-
Abstract
- We report an enhancement of coupling efficiency between an optical fiber and graphene photonic device integrated on a silicon photonics platform. The design and optimization of selective spot-size converters (SSSCs) enables low coupling losses of 1.4 dB/facet for TE and 2.4 dB/facet for TM modes without causing damage to the graphene. In order to maximize the potential of the perfect wavelength independent response in the graphene, ultra-broad-bandwidth coupling from O- to U-bands (1300-1650 nm) is characterized. The bandwidth is over 300 nm (at 3-dB roll off) in both polarization modes. We integrated the SSSCs with a partially graphene integrated silicon-ring resonator to substantiate the wavelength response improvement by a pico-meter-order high-resolution spectroscopy.
Details
- Language :
- English
- ISSN :
- 19430655
- Volume :
- 6
- Issue :
- 3
- Database :
- Directory of Open Access Journals
- Journal :
- IEEE Photonics Journal
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.4b04d909b9384517bb62d42e582d4a48
- Document Type :
- article
- Full Text :
- https://doi.org/10.1109/JPHOT.2014.2323297