Waveguide and guided-wave devices consisting of heterostructured photonic crystals

Shojiro Kawakami; Takashi Sato; Kenta Miura; Yasuo Ohtera; Takayuki Kawashima; Hiroyuki Ohkubo

doi:10.1117/12.475539

11 July 2002 Waveguide and guided-wave devices consisting of heterostructured photonic crystals

Shojiro Kawakami, Takashi Sato, Kenta Miura, Yasuo Ohtera, Takayuki Kawashima, Hiroyuki Ohkubo

Proceedings Volume 4870, Active and Passive Optical Components for WDM Communications II; (2002) https://doi.org/10.1117/12.475539
Event: ITCom 2002: The Convergence of Information Technologies and Communications, 2002, Boston, MA, United States

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.

Citation Download Citation

Shojiro Kawakami, Takashi Sato, Kenta Miura, Yasuo Ohtera, Takayuki Kawashima, and Hiroyuki Ohkubo "Waveguide and guided-wave devices consisting of heterostructured photonic crystals", Proc. SPIE 4870, Active and Passive Optical Components for WDM Communications II, (11 July 2002); https://doi.org/10.1117/12.475539

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