Print ISSN: 1681-6900

Online ISSN: 2412-0758

Keywords : Optical fiber


Design and Implementation of the Temperature Sensor for Health Care Monitoring Based on Optical Fiber Technology

Dawood S. Ahmed; Alaa H. Ali; Shehab A. Kadhim; Sawsan K. Fandi

Engineering and Technology Journal, 2021, Volume 39, Issue 10, Pages 1583-1587
DOI: 10.30684/etj.v39i10.2170

Human health is represented due to the measurement of vital signs. The basic vital signs are temperature, heart pulse rate, oxygen percentage in blood, blood pressure, etc. These signs are changes according to the physical and mental status of the individual. So measuring and monitoring those signs are very important. In this work, design and implementation of human Temperature Sensor are submitted. This is achieved using optical fiber technology. Two sensor diameters were tested; 125 µm and 60µm. The obtained results show a shifting in wavelength towards the red region due to temperature application. The submitted sensor has good sensitivity and linearity. Both sensors exhibit good responsivity, sensitivity, and high linearity. The sensitivity is increased about five times when the diameter is decreased.

The Optimum Conditions for Arc Fusion to Splice Photonic Crystal Fiber and Single Mode Optical Fiber

Mohammed S. Mehde; Salah Aldeen Adnan Taha; Ammar Anwer Ahmed

Engineering and Technology Journal, 2015, Volume 33, Issue 1, Pages 101-113

This search deals with the empirically obtained conditions for the fusion splicing with photonic crystal fibers (ESM-12) and (SMF-28) by controlling the arc-power and the arc-time of conventional electric-arc fusion splicer (FSM-60S). The development of microstructure fiber has been limited by the fact that these fibers are generally difficult, and in some cases even impossible, to fusion splice using conventional technologies. For this reason, fusion splicing microstructure fiber is an important area of research that is likely to impact the future direction of optical fiber technology . there are many kinds of fusion splicing techniques, enabling connection between two optical fibers, such as an electric arc and a CO2 laser .It is likely that electric arc fusion splicing technique has been widely applied and even better established than the others, especially on the standard single mode fibers (SMFs).

Effect of Distance between Two Optical Single Mode Fibers on Minimum Splice Losses by Using Arc Fusion Splicer

Salah Aldeen Adnan Taha

Engineering and Technology Journal, 2014, Volume 32, Issue 8, Pages 1982-1991

Old Researches were worked to find the splice losses between two single mode fibers (SMF-28/SMF-28) by using different arc fusion splicer without taking the effect of distance between them. We have conducted numerous experiments on this fiber where the fiber is cut and weld many times in order to find the fusion splice loss when the arc fusion power is fixed at (20 step) for different fusion times ( 1s , 3s , 6s , 9s ), the fusion time and fusion power were used with changing of the distance to (10um,20um,30um). another splice losses were achieved by using another arc fusion power ( 30 step,40 step,50 step ) by using the same arc fusion time and the distance between fibers as shown in fig's below , the minimum splice losses have been extracted from the different figures as below , these minimum splice losses compared with different arc fusion power and distance by using three-dimensional program ,Obviously when the distance between two fibers is increased(25-30)um, the minimum splice loss is decreased and vice versa when the distance is (10)um.