Integrating semiconductor lasers in a variety of different applications such as consumer electronics, manufacturing processes, aviation and even in medical applications makes them very ubiquitous in today’s society. Further progress in the development of semiconductors and its advanced applications have generated new emerging markets. For instance, complex laser systems for the treatment of tumors and infections are recognized as a new market.
This thesis introduces an advanced automatic calibration software system to be integrated in the production process of a medical laser device. The medical device includes two lasers: a treatment beam and an aiming beam, adding to the calibration software’s complexity. Additionally, the laser system consists of two subsystems: a laser device and an optical beam shaper unit. Once constructed, the calibration system would enable the medical device to be characterized and calibrated fully to ensure that it operates under its specification.
The aim of this project was to provide the company with a working solution for the production environment that passes all regulatory and internal requirements. The development process began with defining a list of specifications for the calibration system and its software, which was followed by gradually integrating the software with the rest of the calibration system. The inclusion of the theoretical background presented in this thesis is necessary to understand the challenges and corresponding technical decisions that were being made during the course of this project.
The backbone of the software architecture and its core mechanisms are illustrated as an overview of the automatic calibration system. In addition, the implemented components and algorithms, including the necessary performance optimizations for selected subsystems, are described. Some additional constraints, that needed to be taken into consideration during the development of the calibration software, included software licensing and the system’s safety.
After the implementation the calibration system was validated and verified to ensure that it meets its specifications and performance requirements. To improve the calibration system a few ideas are presented, such as optimizing the beam profiling procedure. Ultimately, the calibration system as well as its software were concluded to be suitable and capable of being utilized in the production process of the medical laser device
