1. M. Fake, D.G. Parker: Optical Amplifiers, in Photonic Devices and Systems, (ed.) R.G. Hunsperger, Marcel Dekker, Ser. Opt. Eng., Vol. 45 (Marcel Dekker, New York, Basel 1994)
2. C.K. Liu, F.S. Lal, J.J. Jou, M.C. Chang: Temperature and electromagnetic effects on erbium-doped fiber amplifier systems. Opt. Eng. 37, 2095 (1998)
3. M. Yamada, M. Shimizu, K. Yoshino, M. Horiguchi, M. Okayasu: Temperature dependence of signal gain in erbium-doped fiber amplifiers IEEE J. Quant. Electron. 28, 640 (1992)
4. M. Islam, M. Nietubyc: Raman amplification opens the S-band window. WDM Solutions (A supplement to Laser Focus World) 37, 53 (2001)
5. S. Jiang, T. Luo, B.-C. Hwang, G. Nunzi-Conti, M. Myers, D. Rhonehouse, S. Honkanen, N. Peyghambarian: New Er3+ -doped phosphate glass for ion-exchanged waveguide amplifiers. Opt. Eng. 37, 3282 (1998)