Ultrasonic Single-Mode Fiber Optics

Recently we have proposed and demonstrated two broadband single mode fiber optic sensor systems for detection of ultrasonic waves propagating in fluids. A review of such systems and their theoretical analysis is presented here. All-optical ultrasound (OpUS), where ultrasound is both generated and received using light, has emerged as a modality well-suited to highly miniaturised applications. One such system is based on polarization modulation and only requires. In fiber-optic communication, a single-mode optical fiber, also known as fundamental- or mono-mode, is an optical fiber designed to carry only a single mode of light - the transverse mode. Higher-order modes like LP 11, LP 20 etc. We have compared the ultrasonic sensitivities of two Mach–Zehnder interferometric intrinsic optical fiber sensors. One is based on a single-mode. [pdf]