Optical Channel Monitor Temperature Stabilization
The telecommunications market often uses thermoelectric coolers (TECs) to temperature stabilize Optical Channel Monitors (OCM). OCMs usually contain some sort of tunable light filter that requires temperature stabilization to perform its task across a broad range of external temperatures. The task of the OCM is to monitor the optical power and wavelength of each of the active wavelengths in a given Dense Wavelength Division Multiplexed (DWDM) system node, so that the wavelength spectrum leaving the node can be amplitude-balanced. As with all Telcordia components, OCMs are expected to work nonstop in the field for a minimum of 20 years; the TEC must accommodate the laser’s lifetime and durability both in design and build.