Demonstrate gain robbing of an EDFA by bending an optical fiber

Optical networks are emerging as a promising technology for long haul transmission system as they can carry data at a higher transmission rate than traditional network, due to which there is a growing demand to use optical network. Due to high demands of optical networks, security measures for optical networks have become an important topic for equipment manufacturers and network operators. Optical network security has always been a big concern as they are being widely used for almost all kind of long haul data transmission system, and as new venerability in optical network systems are found study in the area of optical network security has increased in order to keep abreast or a step ahead of any attack or vulnerabilities on an optical network. This research paper illustrates a new method of attack on an optical network by bending an optical fiber to perform gain robbing attack on Erbium Doped Fiber Amplifier (EDFA), this research will further bridge the gap in order to protect optical network from its venerability.; This research paper, presents the results of single-radius bend loss on measurement for SMF28 fiber over the wavelength range of C Band where most of the commercially available optical networks operate. Further a mathematical model for gain robbing was done to perform gain robbing attack by bending the fiber. This research paper shows that by bending an optical fiber three distinct region of amplification is seen these regions are functions of bend radius. The three amplification region identified in this research were studied to identify the safe operation of the amplifier, these regions are identified as (i) No gain robbing region, (ii) Gain robbing region and (iii) Extreme loss region.; The three regions were found using mathematical model of erbium doped fiber amplifiers which are modeled using the propagation and rate equations of a homogeneous, two-level laser medium. The findings are used to create an attack model of gain robbing due to bend in a fiber.