High-speed VCSEL of modulation bandwidth over 7.0 GHz and its application to 100 m PCF datalink

Achyut Kumar Dutta, Hideo Kosaka, Kaori Kurihara, Yoshimasa Sugimoto, Kenichi Kasahara

研究成果: Article査読

26 被引用数 (Scopus)

抄録

High-speed vertical cavity surface emitting laser (VCSEL) with 6 x 6 μm active area is fabricated by reducing its pad area in order to reduce its parasitic capacitance. The fabricated VCSEL shows the 3 dB bandwidth of over 7 GHz and average threshold current of 0.7 mA. This is the highest 3 dB modulation bandwidth ever reported for the plan type bottom emitted laser with pad. The maximum intrinsic bandwidth as estimated from k-factor is found to be over 20 GHz, which is less than three times than the observed bandwidth. The thermal characteristics are also found to be almost unchanged due to the reducing of its pad size. It also showed open eye pattern for 3 GHz nonreturn to zero (NRZ) pseudorandom signal after transmission through 100 m large core plastic clad fiber (PCF), which could be used in short and medium distance optical links.

本文言語English
ページ(範囲)870-875
ページ数6
ジャーナルJournal of Lightwave Technology
16
5
DOI
出版ステータスPublished - 1998 5 1

ASJC Scopus subject areas

  • 原子分子物理学および光学

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