Abstract
The heterostructured photonic crystal waveguide fabricated by the autocloning technology allows fabrication jointly with other functional devices. Hence, this approach is useful for elemental components for the next-generation high-function planar optical circuits. When this waveguide is used for interconnection of optical circuits, its propagation loss should be as small as possible. In this investigation, Ta2O5/SiO2 is selected as the construction material. Further, by using a waveguide configuration minimizing the scattering loss, substantial loss reduction was achieved. It is especially effective to use a simple flat multilayered film structure. A loss reduction up to a propagation loss of 0.1 dB/mm was realized. The present waveguide has a small coupling loss of 0.43 dB with an existing optical fiber (a high-Δ fiber with a mode field diameter of 2.7 μm) and hence is easily adapted to the optical communication system. The heterostructured photonic crystal waveguide is thus extremely practical.
Original language | English |
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Pages (from-to) | 10-20 |
Number of pages | 11 |
Journal | Electronics and Communications in Japan, Part II: Electronics (English translation of Denshi Tsushin Gakkai Ronbunshi) |
Volume | 88 |
Issue number | 11 |
DOIs | |
Publication status | Published - 2005 Nov 1 |
Keywords
- Autocloning
- Heterostructured
- Photonic crystal
- TaO/ SiO
- Waveguide
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Computer Networks and Communications
- Electrical and Electronic Engineering