We have demonstrated 1.55 μm wavelength lightwave propagation through a 120° sharply bent waveguide formed in a triangular-lattice two-dimensional photonic crystal (2D PC). Such propagation has not previously been experimentally confirmed. The photonic crystal was fabricated in a silicon-on-insulator (SOI) wafer with the top silicon layer of the wafer used as a core layer. A 877-μm-long single-line-defect waveguide was formed in the PC with a sharp 120° bend near the middle of the waveguide. A tapered-hemispherical-end fiber was coupled to the input end of the waveguide for the light input, and the output from the other end of the waveguide was directly observed by scanning its near-field profile with another tapered-hemispherical-end fiber.
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21 February 2000
Research Article|
February 21 2000
Lightwave propagation through a 120° sharply bent single-line-defect photonic crystal waveguide
Masatoshi Tokushima;
Masatoshi Tokushima
Optoelectronics and High Frequency Device Research Laboratories, NEC, 34 Miyukigaoka, Tsukuba, Ibaraki, 305-8501, Japan
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Hideo Kosaka;
Hideo Kosaka
Optoelectronics and High Frequency Device Research Laboratories, NEC, 34 Miyukigaoka, Tsukuba, Ibaraki, 305-8501, Japan
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Akihisa Tomita;
Akihisa Tomita
Optoelectronics and High Frequency Device Research Laboratories, NEC, 34 Miyukigaoka, Tsukuba, Ibaraki, 305-8501, Japan
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Hirohito Yamada
Hirohito Yamada
Optoelectronics and High Frequency Device Research Laboratories, NEC, 34 Miyukigaoka, Tsukuba, Ibaraki, 305-8501, Japan
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Masatoshi Tokushima
Hideo Kosaka
Akihisa Tomita
Hirohito Yamada
Optoelectronics and High Frequency Device Research Laboratories, NEC, 34 Miyukigaoka, Tsukuba, Ibaraki, 305-8501, Japan
Appl. Phys. Lett. 76, 952–954 (2000)
Article history
Received:
October 28 1999
Accepted:
December 21 1999
Citation
Masatoshi Tokushima, Hideo Kosaka, Akihisa Tomita, Hirohito Yamada; Lightwave propagation through a 120° sharply bent single-line-defect photonic crystal waveguide. Appl. Phys. Lett. 21 February 2000; 76 (8): 952–954. https://doi.org/10.1063/1.125902
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