Optical interconnects in massively parallel processing (MPP) systems will require a variety of optical components regardless of the specific implementation of the optics in such systems. These components span a range of complexity from conceptually simple structures such as connectors to quite complex structures such as VCSELs. While numerous optical components have been developed for jiberbase...

A high-accuracy measurement method for the noncircularity (ellipticity) of silica glass fibers is demonstrated. This method makes use of the phase velocity difference between two eigen polarization modes of the lowest-order acoustic flexural wave in an optical fiber. The relationship between the acoustic phase velocity difference and the fiber ellipticity is formulated. Three types of optical f...

Nowadays, optical communications are the most requested and preferred telecommunication technology, due to its large bandwidth and low propagation attenuation, when compared with the electric transmission lines. Besides these advantages, the use of optical fibers often represents for the telecom operators a low implementation and operation cost. Moreover, the applications of optical fibers goes...

We present a method for ultra-low-loss coupling between two single-mode optical fibers with different mode-field diameters using multimode interference in a graded-index multimode optical fiber. We perform a detailed analysis of the interference effects and show that the graded-index fiber can also be used as a beam expander or condenser. The results are important for devices in which optical f...

A review of optical fiber hydrogen sensors based on palladium (Pd) is presented. Palladium hydrogen optical fiber sensing systems can be considered as a model for other metal hybrid systems. In addition, the Pd hydrogen systems are well characterized in bulk, cluster, or thin film form. We focus on the fiber principles. We then discuss their performances regarding their configurations. We will ...

Dispersion compensation in optical fiber communication system is analyzed. Performance is analyzed at10 Gbps in optical communication system with different transmission distance. To analyze the different modulation formats for optical modulation system and the impact of dispersion compensators on the performance of efficient optical communication system. Q factor and BER is analyzed with respec...

The optical fiber is well adapted to pass multiple wireless signals having different carrier frequencies by using radio-over-fiber (ROF) technique. However, multiple wireless signals which have the same carrier frequency cannot propagate over a single optical fiber, such as wireless multi-input multi-output (MIMO) signals feeding multiple antennas in the fiber wireless (FiWi) system. A novel op...