Review on Developments in Fiber Optical Sensors and Applications

Abstract

The last couple of decades had witnessed a steep rise in extensive research of optoelectronic and fiber optical communication fields, which resulted in applications focused initially in military, aerospace equipments, and later in health monitoring for medicine, heritage culture and various engineering fields. Health monitoring has attracted the effort of many engineers throughout the world and is fast emerging as a pioneering field. It is helping to improve world economy in two ways; first, directly by providing longevity to all the important structures and secondly, by prevention of untimely failure leading to loss of life and money. This field is very vast, consisting of traditional monitoring methods as well as smart system based methods. The fiber optics belong to finest class of smart materials, there are many types and classifications of fiber optics based on necessity, manufacturer and the end user. This paper, gives a complete over view of fiber sensing systems and their usefulness. In addition, it highlights some of the general fiber optics available in the market with selected examples.

Single-Mode Modified Tapered Fiber Structure Functionalized With GO-PVA Composite Layer for Relative Humidity Sensing

“…Another advantage is the size of the fiber being relatively small, which is compact and space-saving. With easy and safe installation and operation, optical fiber sensors have become a popular research focus where their potential is being explored in many kinds of measuring purposes [4,5]. Among the different types of fiber-based sensors, tapered optical fiber sensors are considered as one of the most facile and easy sensors to be fabricated.…”

“…In (4), d p is defined as the depth at which the electric field drops to 1/e of the initial value at the surface. The number of reflections, N, happens at the glass-medium in the contact interface, depends greatly on the fiber diameter:…”

The Application of Metal Deposition in Optical Sensor Technique. The Microscale Cu Deposition as “Electrochemical Welding”

“…Similarly, a synthetic resin glue is not the best agent to be applied here. The prior ways of optical glass fiber fixing to metal plate are generally not explicitly discussed in literature, being at most only mentioned [6], [11]. The technical details of metal plate/glass fiber system are more exactly presented in [15,Fig.…”

An Optical Fiber Sensor and Its Application in UAVs for Current Measurements

“…Fiber-optic sensors have acquired growing importance in the field of sensor technologies [1,2,3]. Compared with conventional devices, optical fiber sensors present many advantages [4,5].…”