DiCon Fiberoptics Inc. has a new line of Wavelength Lockers for feedback control of DWDM lasers on the 100-GHz ITU grid. A single locker can be used for all 40 ITU channels. A passive, two-port component version, which can be integrated into laser wavelength monitoring systems, is available. Also available is a hybrid cassette that contains a tap and two detectors for monitoring laser power and center wavelength simultaneously. Component losses are only 3 dB, and total wavelength accuracy is >5 GHz.