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Muhammad Aslam
Babar Hussain*
Muhammad Imran Shahid
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Muhammad Aslam
Babar Hussain*
Muhammad Imran Shahid
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International Research Journal of Electrical and Electronics Engineering

Design and development of photodynamic therapy laser system

Muhammad Imran Shahid1,2, Babar Hussain2,3*, Muhammad Aslam2

1Department of Automation, University of Science and Technology of China, Hefei, China.

2National Institute of Lasers and Optronics, Islamabad, Pakistan.

3Department of Electrical and Computer Engineering, University of North Carolina at Charlotte, Charlotte, NC, USA.

Accepted December 07, 2015.

Citation: Shahid MI, Hussain B, Aslam M (2015). Design and Development of Photodynamic Therapy Laser System. International Research Journal of Electrical and Electronics Engineering, 2(1): 007-017. 

Copyright: © 2015 Shahid et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are cited.

Abstract

Photodynamic Therapy (PDT) requires a laser light source of fixed wavelength and controllable optical power. A PDT laser system, presented in this paper, has been designed and developed to produce laser light of fixed wavelength (635 nm) and controllable optical power (up to 2 Watts). The system can be controlled and monitored by a personal computer. A similar standalone system has also been developed using microcontroller. The PDT laser systems have been indigenously developed using discrete electronic components saving 75% cost as compared to commercial system. The microcontroller based system has been successfully used for skin cancer treatment of several patients.

Keywords: Photodynamic Therapy (PDT), PDT laser system, laser diode, thermoelectric cooler (TEC), driver circuit

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