by Yuen, Clement, Yu, Siu F., Sun, Xiao W., Xu, Chun X., Leong, Eunice S. P., Lau, Shu P., Chen, Chung K.
Published in Japanese Journal of Applied Physics (01.08.2004)

by Tsang, S.H., Yu, S.F., Lau, S.P., Yang, H.Y., Xiao Feng Li
Published in IEEE photonics technology letters (15.04.2009)

by GAO XINGYU, YOO JIN K, HUANG LEI, CHOLEWA MARIAN, LAU SHU P, BURDEN ADRIAN P, MOSER HERBERT O, SHEN WEE ANDREW T, YI GYUUL
Year of Publication 16.11.2006