The crystal ovens and temperature control kits provided by LBTEK are primarily used for temperature control of optical crystals, including constant temperature and heating, to ensure stable and efficient optical frequency conversion under specific phase-matching conditions. They are widely applied in fields such as quantum light sources, laser second harmonic generation/sum frequency generation/difference frequency generation, ultrafast lasers, optical communications, and precision spectroscopy. Among these, the precision temperature controller utilizes thermistors or other temperature sensors as sensing devices, combined with semiconductor refrigeration technology, to achieve precise control of the operating temperature of optical crystals. The precision temperature controller can deliver a power of up to 30W, with a temperature control stability of ±0.001°C, providing highly accurate temperature control for optical crystals. The crystal temperature control oven, custom-designed for optical crystals, is used in conjunction with the precision temperature controller. This device enables effective environmental thermal isolation and crystal temperature control. When paired with a multi-axis translation stage, it allows for fine adjustments of the crystal's position and angle. The temperature control oven can be customized according to the crystal dimensions; for details, please contact technical support.