@book{27776,
	author = {Huang, Dexiu, ed.},
	title = {Materials, Active Devices, and Optical Amplifiers},
	publisher = {SPIE},
	year = {2004},
	series = {Proceedings of SPIE; V. 5280},
	address = {Washington, USA},
	url = {https://www.spiedigitallibrary.org/conference-proceedings-of-spie/5280}
}