Peltier-based temperature regulation: A method for performance optimization in solid-state lasers
Felipe Flores Montalvão,
Iago Carvalho de Almeida,
Vinícius Pereira Pinto,
Bruno Pereira de Oliveira,
Fátima Maria Mitsue Yasuoka,
Jarbas Caiado de Castro Neto
Affiliations
Felipe Flores Montalvão
São Carlos Institute of Physics, University of São Paulo, PO BOX 369, São Carlos, 13560-970, SP, Brazil
Iago Carvalho de Almeida
São Carlos Institute of Physics, University of São Paulo, PO BOX 369, São Carlos, 13560-970, SP, Brazil
Vinícius Pereira Pinto
São Carlos Institute of Physics, University of São Paulo, PO BOX 369, São Carlos, 13560-970, SP, Brazil; Corresponding author.
Bruno Pereira de Oliveira
São Carlos Institute of Physics, University of São Paulo, PO BOX 369, São Carlos, 13560-970, SP, Brazil
Fátima Maria Mitsue Yasuoka
São Carlos Institute of Physics, University of São Paulo, PO BOX 369, São Carlos, 13560-970, SP, Brazil; BR Labs Tecnologia Óptica e Fotônica Ltda, Juan Lopes St., 222 - Jardim São João Batista, São Carlos, 13567-020, SP, Brazil
Jarbas Caiado de Castro Neto
São Carlos Institute of Physics, University of São Paulo, PO BOX 369, São Carlos, 13560-970, SP, Brazil
This article presents a direct method for temperature control in solid-state lasers, where temperature stability is crucial for optimizing the performance and reliability of such lasers. The proposed method utilizes Peltier chips for both cooling and heating the laser crystal to achieve precise temperature regulation.The system design is based on the step response of the open-loop thermal system and employs a proportional-integral (PI) controller for closed-loop temperature control. Comprehensive testing on a femtosecond Titanium-Sapphire Laser (Ti:Sapphire laser) demonstrated that the system is capable of maintaining the desired operating temperature with remarkable stability and efficiency, highlighting its practicality for real-world applications.Method Outline: • Utilization of Peltier chips for precise temperature control. • Estimation of first-order transfer function based on step response. • Implementation of a proportional-integral (PI) controller for closed-loop temperature regulation.
