New York: Institute of Electrical and Electronics Engineers (IEEE)
Channel monitoring of DWDM tunable lasers can be easily performed by using the built-in isolator and an external polarizer. We applied it to monitor eight 100 GHz-spaced channels and characterize fast tunable lasers.
Lasers and Electro-Optics, 2003. CLEO/Pacific Rim 2003. The 5th Pacific Rim Conference on vol.2, p.675