Open Access

ARTICLE

Two-Mode Biomedical Sensor Build-up: Characterization of Optical Amplifier

by Usman Masud^1,2,*, Fathe Jeribi³, Mohammed Alhameed³, Faraz Akram⁴, Ali Tahir³, Mohammad Yousaf Naudhani⁵

1 Faculty of Electrical and Electronics Engineering, University of Engineering and Technology, Taxila, 47050, Pakistan
2 Department of Electrical Communication Engineering, University of Kassel, Kassel, 34127, Germany
3 College of Computer Science & Information Technology, Jazan University, Jazan, 45142, Saudi Arabia
4 Faculty of Engineering and Applied Sciences, Riphah International University, Islamabad, 44000, Pakistan
5 Faculty of Information & Communication Technology, Balochistan University of Information Technology, Engineering and Management Sciences, Quetta

* Corresponding Author: Usman Masud. Email:

(This article belongs to the Special Issue: Role of Computer in Modelling & Solving Real-World Problems)

Computers, Materials & Continua 2022, 70(3), 5487-5489. https://doi.org/10.32604/cmc.2022.020417

Received 23 May 2021; Accepted 12 August 2021; Issue published 11 October 2021

Abstract

Intracavity absorption spectroscopy is a strikingly sensitive technique that has been integrated with a two-wavelength setup to develop a sensor for human breath. Various factors are considered in such a scenario, out of which Relative Intensity Noise (RIN) has been exploited as an important parameter to characterize and calibrate the said setup. During the performance of an electrical based assessment arrangement which has been developed in the laboratory as an alternative to the expensive Agilent setup, the optical amplifier plays a pivotal role in its development and operation, along with other components and their significance. Therefore, the investigation and technical analysis of the amplifier in the system has been explored in detail. The algorithm developed for the automatic measurements of the system has been effectively deployed in terms of the laser's performance. With this in perspective, a frequency dependent calibration has been pursued in depth with this scheme which enhances the sensor's efficiency in terms of its sensitivity. In this way, our investigation helps us in a better understanding and implementation perspective of the proposed system, as the outcomes of our analysis adds to the precision and accuracy of the entire system.

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