1. Agrawal, G.P., Olsson, N.A.: Self-phase modulation and spectral broadening of optical pulses in semiconductor laser amplifiers. IEEE J. Quantum Electron. 25, 2297–2306 (1989)
2. Akiyama, T., Sugawara, M., Arakawa, Y.: Quantum-dot semiconductor optical amplifiers. Proc. IEEE. 95, 1757–1766 (2007)
3. Bonk, R., Huber, G., Vallaitis, T., Koenig, S., Schmogrow, R., Hillerkuss, D., Brenot, R., Lelarge, F., Duan, G.H., Sygletos, S., Koos, C., Freude, W., Leuthold, J.: Linear semiconductor optical amplifiers for amplification of advanced modulation formats. Opt. Express 20, 9657–9672 (2012)
4. Connelly, M.J.: Semiconductor optical amplifier fundamentals. In: Piprek, J. (ed.) Handbook of Optoelectronic Device Modeling and Simulation: Fundamentals, Materials, Nanostructures, LEDs, and Amplifiers. CRC Press (2017)
5. Connelly, M.J.: Optical Amplifiers: SOAs. In: Guenther, B., Steel, D. (eds.) Encyclopedia of Modern Optics, vol. 2. Elsevier (2018a)