Temperature regulation of laser assemblies
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorsClaudio D'INCÀ, Alberto DEHO, Sergio MOSTI
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Abstract
In an embodiment, a laser assembly (100, 200) comprises a laser chip (102, 202), a heater (104, 204), a temperature regulation device (106, 206) capable of heating and cooling the laser chip (102, 202), at least one temperature sensor (108, 208) configured to measure a temperature of the laser assembly (100, 200) and a controller (110, 210). The controller (110, 210) is configured to, based on at least one temperature measured by the at least one temperature sensor (108, 208), control the heater (104, 204) to heat the laser chip (102, 202); and control the temperature regulation device (106, 206) to regulate the temperature of the heated laser chip (102, 202).
Claims18
A laser assembly comprising:
- a laser chip;
- a heater;
- a temperature regulation device capable of heating and cooling the laser chip;
- at least one temperature sensor configured to measure a temperature of the laser assembly;
- and
- a controller configured to, based on at least one temperature measured by the at least one temperature sensor;
- control the heater to heat the laser chip;
- and
- control the temperature regulation device to regulate the temperature of the heated laser chip.
A method for regulating a temperature of a laser chip of a laser assembly comprising:
- heating the laser chip using a heater of the laser assembly;
- sensing a temperature of the laser chip;
- and
- based on a difference between the sensed temperature and at least one set point temperature, controlling the temperature of the heated laser chip using a temperature regulation device which is capable of heating and cooling the laser chip.
Dependencies are inferred from the claim text.