Optomechatronic scanning systems used in vibration compensation for laser systems

Daniel Constantin P. Comeaga; Emil Ionut Nita; Philip Coanda

doi:10.1117/12.2618231

5 May 2022 Optomechatronic scanning systems used in vibration compensation for laser systems

Daniel Constantin P. Comeaga, Emil Ionut Nita, Philip Coanda

Proceedings Volume 12170, Advances in 3OM: Opto-Mechatronics, Opto-Mechanics, and Optical Metrology; 121700I (2022) https://doi.org/10.1117/12.2618231
Event: Advances in 3OM: Opto-Mechatronics, Opto-Mechanics, and Optical Metrology, 2021, Timisoara, Romania

Abstract

The stabilization of portable laser systems is of major importance for improving performance and ensuring high mobility of devices. These systems can be grouped into two classes: resonant and non-resonant, each requiring different approaches. The article presents the conceptual and physical results of research, focused on the industrial application of a stabilization solution in the field of portable laser equipment used in the medical field. The proposed solutions to the major problems encountered are presented: mobile system motion detection and correction signal extraction, mechatronic positioning system design, feedback loop design, concept of a system performance certification stand. Aspects regarding the optimal actuation solution are discussed, comparing the piezoelectric, electrodynamic and electromagnetic ones. These are analyzed for gauge conditions imposed in terms of accuracy, range, thermal stability, the presence and size of nonlinearities and hysteresis. A major problem in these portable systems is their miniaturization. A scanning solution is presented based on the use of LIGA-Laser technology for mechanical microstructures and micromagnets, in bulk or 2D array structure manufacturing, which interact with planar coils. The solution has a practically proven improvement, not used so far in scanners, respectively a structure with two coupled degrees of freedom for each direction of movement, on the principle of dynamic absorber. The preliminary results for the numerical signal processing and the mechatronic construction of the dynamic positioning system of the entire laser assembly are also presented, as a possible option for the use of small size sources, having the advantage of an easy autofocus.

Citation Download Citation

Daniel Constantin P. Comeaga, Emil Ionut Nita, and Philip Coanda "Optomechatronic scanning systems used in vibration compensation for laser systems", Proc. SPIE 12170, Advances in 3OM: Opto-Mechatronics, Opto-Mechanics, and Optical Metrology, 121700I (5 May 2022); https://doi.org/10.1117/12.2618231

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KEYWORDS

Actuators

Mirrors

Prisms

Electromagnetism

Magnetism

Control systems

Laser systems engineering

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