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Proceedings Paper

Waveguide and guided-wave devices consisting of heterostructured photonic crystals
Author(s): Shojiro Kawakami; Takashi Sato; Kenta Miura; Yasuo Ohtera; Takayuki Kawashima; Hiroyuki Ohkubo
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Paper Abstract

We report a strategy of industrialization of photonic-crystal based optical devices: We first review requirements for passive photonic crystal components. Although they have remarkable properties, they have at the same time severe difficulties such as difficulty of practical coupling to/from optical fibers and a relatively large propagation loss. This paper present an approach of meeting the requirements using heterostructured photonic crystals fabricated by autocloning. A low-loss, simple structured waveguide and sophisticated functional blocks (such as a resonator) can be integrated by a simple process. We first prepare a substrate patterned and corrugated by electron beam lithography and dry etching. Ta2O5/SiO2 mutilayers are repeatedly deposited on the substrate, and no other process is needed to complete the chip. After dicing and polishing, the waveguide can be butt-jointed with an optical fiber and the loss is estimated as 1.3 dB/mm. A resonator with Q = 270 is also demonstrated. Future outlooks of the technology are also discussed.

Paper Details

Date Published: 11 July 2002
PDF: 10 pages
Proc. SPIE 4870, Active and Passive Optical Components for WDM Communications II, (11 July 2002); doi: 10.1117/12.475539
Show Author Affiliations
Shojiro Kawakami, Tohoku Univ. and Photonic Lattice Inc. (Japan)
Takashi Sato, Tohoku Univ. and Photonic Lattice Inc. (Japan)
Kenta Miura, Tohoku Univ. (Japan)
Yasuo Ohtera, Tohoku Univ. (Japan)
Takayuki Kawashima, Tohoku Univ. and Photonic Lattice Inc. (Japan)
Hiroyuki Ohkubo, Tohoku Univ. (Japan)

Published in SPIE Proceedings Vol. 4870:
Active and Passive Optical Components for WDM Communications II
Achyut Kumar Dutta; Abdul Ahad Sami Awwal; Niloy K. Dutta; Katsunari Okamoto, Editor(s)

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