1. G. P. Agrawal and N. K. Dutta, Semiconductor Lasers, second ed., Van Nostrand Reinhold, 1993.
2. G. H. B. Thompson, Physics Semiconductor Laser Diodes, Chichester: John Wiley & Sons, 1980.
3. T. Ikegami and Y. Suematsu, Proc. IEEE 55, 122, 1967; Electron. Comm. Jpn, 51-B, 51, 1968; 53-B, 69, 1970.
4. T. Ikegami, ECOC’75, Tech. Dig., 111, 1975.
5. Y. Suematsu, S. Arai, and K. Kishino, IEEE J. Lightwave Technol., LT-1, 161, 1983.