Wavelength-Tunable InGaAsP-InP Multiple-λ/4-Shifted Distributed Feedback Laser

Masayoshi Horita, Katsuyuki Utaka, Yuichi Matsushima

研究成果: Article

9 引用 (Scopus)

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A wavelength-tunable InGaAsP/InP multiple-λ/4-shifted distributed feedback (MQS-DFB) laser was demonstrated for the first time. A DFB laser with three λ/4-shifts and five electrodes was fabricated and its fundamental characteristics, such as tunability, spectral linewidth and FM response, were investigated. The stable single mode operation with an excellent SMSR of more than 40 dB was confirmed. Continuous wavelength tuning under constant output power mode was obtained with a range of 1.7 nm. Minimum spectral linewidth was 3 MHz at an output power of 20 mW. Flat FM response up to 4 GHz with an efficiency of about 0.65 GHz/mA was also obtained.

元の言語English
ページ(範囲)1810-1816
ページ数7
ジャーナルIEEE Journal of Quantum Electronics
29
発行部数6
DOI
出版物ステータスPublished - 1993 6

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ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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