Abstract
Embodying a thin metallic layer underneath the core of a sharply bent polymer waveguide is shown in this work to considerably reduce the total losses of both the quasi-transverse-electric and quasi-transversemagnetic modes. The computational results show a total loss as low as ~0.02 dB/90° for the quasi-transverse-electric mode for radii between 6 and 13 μm at the wavelength of 1.55 μm, which corresponds to a 10-fold improvement over the purely dielectric counterpart. The radii range exhibiting such low total loss can be tuned by properly selecting the parameters of the structure. For the quasi-transverse-magnetic mode, the metal layer reduces the total losses modestly for radii ranging from 3 to 10 μm. Simulation results for different structural parameters are presented.
Original language | English |
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Pages (from-to) | 29808-29817 |
Number of pages | 10 |
Journal | Optics express |
Volume | 21 |
Issue number | 24 |
DOIs | |
Publication status | Published - Dec 2013 |
Keywords
- IOMS-APD: Active Photonic Devices
- Surface plasmons
- Plasmonics
- Integrated optics
- Guided waves
- Metals
- Polymer waveguides