Laser cooling can be achieved with thermoelectric coolers also referred to as solid-state heat pumps. Thermoelectrics happens to be the only technology that can achieve laser cooling. Thermoelectric coolers operate due to the Peltier Effect. The end result of this effect is a temperature difference. At one end of the semiconductor, a cooling effect occurs. Meanwhile, at the other junction, there is an increase in heat. The thermistor feature reads the laser temperature. In doing so, the thermistor can then set/adjust the TEC power. While in low temperature environments, the thermistor is able to heat lasers given the low temperature environments that they may operate in. Cooling of lasers is necessary because with active cooling and temperature control, your lasers can maintain a more specified signal and data rate. With higher temperatures comes wavelengths shifts (signal loss). In addition, with higher temperatures, there are also performance declines with frequency, efficiency, and reach.
Laser Cooling by Phononic
Data transmission is occurring at an exponential rate. With high volume transmission comes a need for hundreds of millions of optical transceivers to transmit that data. With all the production of transmission comes the need to manage heat. Transceivers need to be effectively and efficiently cooled in order to do their job of data transmission. Phononic’s thermoelectric cooling solutions allow for fast data network transmission while maintaining a cool temperature. Phononic’s thermoelectric coolers (TECs) provide for lower power consumption and greater heat pumping density. Phononic provides solid state laser cooling for Box TOSA (transmit optical subassembly), TO Can, and Pump Lasers.
The OACIS cooling platform—a winner of Fast Company’s 2020 World Changing Ideas Awards—doesn’t use any toxic refrigerants to cool the air.
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