Patent 7,149,407

Patent Number: 
7,149,407
Patent Title: 
Orthogonal heterodyne optical signal-to-noise-ratio monitoring method and apparatus
Faculty, Staff or Student Author(s): 
Daniel Kilper
All Author(s): 

Christopher Doerr, Daniel C. Kilper, Lothar Moeller, Roland Ryf and Chongjiin Xie