100 Gb/s DQPSK field trial: Live video transmission over an operating LambdaXtreme® network. - Gregory Raybon; Peter J. Winzer; Haoyu Song 001; Andrew Adamiecki; Stephen Corteselli; Alan H. Gnauck; Thomas Kissell; Daniel A. Fishman; Nat M. Denkin; Yuan-Hua Claire Kao; Terry L. Downs; Anthony Carenza; et al. (Bell Labs Tech. J., 2010)