1. 1) N. Edagawa: Rare Earth Doped Fiber Lasers and Amplifiers ed. M. J. F. Digonnet (Marcel Dekker Inc, New York, 1993) p.563.
2. 3) A. J. Stentz: OFC/IOOC'99, San Diego (1999) tutorial p.143.
3. 4) 文献1), p.568.
4. 5) P. C. Becker, N. A. Olsson, and J. R. Simpson: Erbium-Doped Fiber Amplifiers -Fundamentals and Technology (Academic Press, San Diego, 1999).