抄録
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.
| 本文言語 | English |
|---|---|
| ページ（範囲） | 1810-1816 |
| ページ数 | 7 |
| ジャーナル | IEEE Journal of Quantum Electronics |
| 巻 | 29 |
| 号 | 6 |
| DOI | |
| 出版ステータス | Published - 1993 6 |
| 外部発表 | はい |
ASJC Scopus subject areas
- 原子分子物理学および光学
- 凝縮系物理学
- 電子工学および電気工学