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Application: Multi-channel Optical Power Monitors for S-Band, C-Band and L-Band DWDM Optical Communication Networks



Multi-channel optical power monitors are necessary for real-time network performance reporting of signal strength and integrity in telecommunication systems. InGaAs photodiode arrays can simultaneously detect multiple wavelengths across the entire ITU (International Telecommunication Union) grid with fast, highly linear performance. Both direct readout and serial output InGaAs photodiode arrays can monitor power in a variety of network elements and EDFA (Erbium Doped Fiber Amplifier) modules. Custom and standard configurations are available from Goodrich ISR Systems - Princeton (formerly Sensors Unlimited) for arrayed waveguide (AWG) integration, fiber ribbon taps and ROADM assemblies. Many of SUI's InGaAs photodiode types have passed Telcordia reliability standards.


Multi-channel monitoring can simultaneously detect multiple wavelengths across the a whole international telecommunications grid. Shortwave infrared wavelengths are used to communicate across these networks, making InGaAs detectors an integral part of network monitoring systems.

A Goodrich linear array, pictured here, can monitor power in S-, C-, and L-Band communication networks.


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