Influence of Temperature on Laser Diode Inside External Cavity Diode Laser
Abstract
We study the influence of temperature on laser diode inside an external cavity diode laser (ECDL) with a cateye reflector mirror type. This type of ECDL has a focus beam to the external mirror in order to tune the laser frequency. The input current and temperature of the ECDL can be adjusted to a proper frequency for D2 of rubidium atoms. However, the influence of the temperature has a strong effect on the laser. Therefore, the study of the temperature variation has been conducted. The cavity length of the ECDL was fixed during the experiments. The laser wavelength was measured by a spectrometer. The second experiment, the temperature and current of the laser were adjusted and a rubidium saturated absorption spectroscopy was employed to monitor the D2 hyperfine transitions for the optimization conditions which can measure the absorption at D2 for using in various experiments with rubidium atoms.References
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