Narrow-Spectral-Linewidth Wavelength-Tunable Laser Diode with Si Wire Waveguide Ring Resonators

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概要

• 論文の詳細を見る

• We fabricated wavelength-tunable laser diodes with Si wire waveguide ring resonators as an external optical cavity. The footprint of the optical cavity including the semiconductor optical amplifier is as small as 2.73\times 0.89 mm2, which is about 1/5 of those made of silicon oxinitride material. About 44-nm-wavelength tuning operation, which covers the entire L-band of the optical communication wavelength range, was obtained. Furthermore, spectral linewidth narrower than 100 kHz was obtained by optimizing the design of the external optical cavity. The tunable laser diodes with narrow spectral linewidth are suitable as light sources for digital coherent optical transmission systems.

• 2012-08-25

著者

• Kita Tomohiro

  Department of Electrical and Communication Engineering, Graduate School of Engineering, Tohoku University, 6-6-05 Aramaki-Aza-Aoba, Aoba-ku, Sendai 980-8579, Japan

• YAMADA Hirohito

  Department of Communication Engineering, Graduate School of Engineering, Tohoku University

• Yamada Hirohito

  Department of Communication Engineering, Graduate School of Engineering, Tohoku University, Sendai 980-8579, Japan

• Nemoto Keita

  Department of Communication Engineering, Graduate School of Engineering, Tohoku University, Sendai 980-8579, Japan

• NEMOTO Keita

  Department of Communication Engineering, Graduate School of Engineering, Tohoku University

• KITA Tomohiro

  Department of Communication Engineering, Graduate School of Engineering, Tohoku University

• Kita Tomohiro

  Department of Communication Engineering, Graduate School of Engineering, Tohoku University, Sendai 980-8579, Japan

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