Request InfoFerrotec (USA) Corp.A line of thermoelectric modules for the optoelectronics industry is available from Ferrotec America Corp. The miniature modules, produced in several sizes, are suitable for laser diodes and fiber optic interconnects such as attenuators and amplifiers. Among the options the company offers are high-temperature solders, and aluminum nitride substrates for applications in extreme temperatures or those that require thermal cycling. 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