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Abstract
The design of an intracavity spectroscopy based two-mode biomedical sensor involves a thorough investigation of the system. For this purpose, the individual components that are present in the system must be examined. This work describes the principle of two very important gadgets, namely the Fibre Bragg Grating (FBG), and the tunable coupler. We adhere to a Petri network scheme to model and analyze the performance of the FBG, and the results mirror strikingly low difference in the values of Bragg Wavelength during its ascending and descending operational principle, thereby maintaining the accuracy of the sensor’s results. Next, a pseudocode is developed and implemented for the investigation of the optical coupler in LabView. The values of its maximum output power are determined, and the coupling ratio for various values of controlling voltage is determined at three different wavelengths. The hysteresis results mirror an extremely low difference between the forward and reverse values in the results. Both the results of the FBG and the coupler are thereby extremely reliable to use them in the laser system, as evident from the respective intensity noise outcomes, as well as the experimentation on substances of interest (Dichloro Methane and Propofol).
Highlights
Considering the living conditions at present occasions, various procedures are being created and explored to check these illnesses [1,2,3]
This contains a Semiconductor Optical Amplifier (SOA), from which light is emitted in both directions in the Near Infra Red (NIR) range (1541–1545 nm)
This work gives an investigation of a biomedical sensor for human well-being
Summary
Considering the living conditions at present occasions, various procedures are being created and explored to check these illnesses [1,2,3]. One of them is the air that is being breathed out of the human lungs. An important tool in this connection that can be utilized is spectroscopy, which helps in the examination of a specific material, potentially recognized as Volatile Organic Compounds (VOCs) nicknamed biomarkers) [8,9,10,11]. This in turn guides us to critical analysis regarding research in environmental and organic disciplines [5,12,13,14], with substantially tremendous capacity in the future
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