| 主权项 |
1. A method comprising:
in a system comprising: a laser; a periodic poled lithium niobate (PPLN) crystal configured to receive laser input from the laser; a temperature control device configured to adjust the temperature of the PPLN crystal; a temperature sensor configured to monitor the temperature of the PPLN crystal; and a computing device:
while the PPLN crystal is receiving laser input from the laser, changing, using the temperature control device, a temperature of the PPLN crystal;monitoring, at the computing device, the temperature of the PPLN crystal and corresponding power of the temperature control device during the changing, the temperature of the PPLN crystal monitored using the temperature sensor; and,determining, at the computing device, one or more of operating conditions of the temperature control device and an operating temperature of the PPLN crystal from a function of the power vs. the temperature, the function comprising a slope corrected function of the power vs. the temperature, a constant trend for heating the PPLN crystal one or more of separated and subtracted from the power vs. the temperature. |
