Multiple bends in fiber contribute significantly to the increase in power loss in optical fiber cables. Bending losses are influenced by different optical parameters like Mode Field Diameter (MFD), Cut-off wavelength and MAC value. This paper highlights the results of a series of tests conducted, to determine the power loss of matched clad step index Single Mode Optical Fiber (SMF). The effect of MFD, Cut-off wavelength and MAC value have been studied with various macro and micro bend testing techniques. The testing techniques and relevant parameters, which effectively measure the bend sensitivity of SMF, have been identified...

Dynamic fatigue behavior of high strength silica optical fiber was studied as a function of relative humidity of draw environment. Fibers were drawn with graphite induction heating furnace and controlled temperature, relative humidity and particle count of the draw environment i.e. drawing furnace to coating application point. Dynamic fatigue of the drawn fibers were measured with two different modes of loading, tensile & two-point bending. Draw humidity was found to have a decided impact on dynamic fatigue measured by tensile loading...

With the adoption of capital intensive 10-100 Gb/s transmission systems in many emerging markets such as India, the requirement of a predictable delivered OSNR in the outside plant is of paramount importance. In such economies, intense construction activity and poor installation practices lead...

Silica glass optical fibers have several applications such as remote sensing of mechanical distortion, thermal fluctuations, pressure variations etc. besides telecommunications. Commercially available optical fibers are usually protected with double, triple and more layers of epoxy/acrylic pol...

With the adoption of capital intensive 10-100 Gb/s transmission systems in many emerging markets such as India, the requirement of a predictable delivered OSNR in the outside plant is of paramount importance. In such economies, intense construction activity and poor installation practices lead...

Acceptance sampling is one of the oldest aspects of quality assurance and is used primarily for incoming and outgoing lot-by-lot quality assurance. Sampling is generally less expensive than hundred-percent inspection and in case of destructive it is the only way. It also leads to less handling of...

Introduction Zero stress aging has been a topic of research and interest in understanding the mechanical behavior of optical fiber during the expected lifetime. Several studies have been carried out to understand the effect of aging on fiber strength properties. The aging behavior of fiber in...

One of the primary causes for the increase in attenuation in optical fiber cables is multiple bends in fiber. Hence, it becomes very critical to understand the bend sensitivity of fiber. The two predominant types of bends in optical fiber, i.e micro and macro bending, have significant impact on the r...

The CUTOFF WAVELENGTH of a single mode fiber is the wavelength above which the fiber propagates only the fundamental mode. Below cut-off, the fiber will transmit more than one mode. An optical fiber that is single-moded at a particular wavelength may have two or more modes at wavelengths lower...

Silica optical fiber is widely used in long-haul telecommunication systems. In these applications, the fibers are frequently exposed to corrosive environments that can cause strength loss. However, optical fiber can be corroded chemically due to moisture attack, which is known as zero-stress a...