Abstract
Recently, distinguishable lasing characteristics, such as low-chirp single-frequency operation under high-speed direct modulation1 and 2.1-MHz narrow spectral linewidth,2 have been reported for 1.5-μm band InGaAs multiple-quantum-well distributed feedback laser diodes (MQW DFB LDs). Although the device parameter dependence of lasing characteristics has been theoretically predicted,3,4 thus far no clear strategy for designing practical MQW-DFB LDs has been reported. As the InGaAs well width is fixed for light emission at a desired 1.5-μm wavelength region, the well number should be the most influential design parameter. This paper reports the first experimental investigation on the well number design in 1.5-μm MQW DFB LDs for direct-detection and coherent-detection optical communication systems.
© 1989 Optical Society of America
PDF ArticleMore Like This
KEISUKE KOJIMA, KUNIHIKO HARA, and KAZUO KYUMA
WL4 Conference on Lasers and Electro-Optics (CLEO:S&I) 1989
M. KITAMURA, S. TAKANO, N. HENMI, T. SASAKI, H. YAMADA, H. HASUMI, and I. MITO
CPD11 Conference on Lasers and Electro-Optics (CLEO:S&I) 1988
C. E. Zah, R. Bhat, S. G. Menocal, F. Favire, P. S. D. Lin, A. S. Gozdz, N. C. Andreadakis, M. A. Koza, and T. P. Lee
CFD1 Conference on Lasers and Electro-Optics (CLEO:S&I) 1991