We explore parallel fiber-optics and single-chip CMOS interface solutions to support broadband multimedia applications in a small workgroup environment. Initial implementation of a network interface card used in our testbed of Intel Pentium-based PCs is described. Feasibility of a CMOS bridge to parallel optics is demonstrated using an adapter chip implemented in 0.5 μm CMOS technology for a po...

Three-dimensional ~3D! optical waveguides were fabricated in a photopolymerizing resin mixture solution by using a multimode optical fiber, without any moving parts. The core portion has formed by the selective photopolymerization of a higher refractive index monomer by Ar laser irradiation through the optical fiber. A continuous, straight waveguide was grown by the self-trapping of a guided la...

Fiber optic sensor technology has been under development for the past 40 years and has resulted in the production of various devices, including fiber optic gyroscopes; sensors of temperature, pressure, and vibration; and chemical probes. Fiber optic sensors offer a number of advantages, such as increased sensitivity compared to existing techniques and geometric versatility, which permits config...

We review various fiber optic sensors utilizing both the propagating and localized surface plasmon resonance techniques. The utilization of optical fibers in plasmon based sensing has provided several advantages in sensing of various physical, chemical and biochemical parameters. The article starts with a brief introduction of the propagating surface plasmon resonance (SPR) and localized surfac...

The compact size, mechanical flexibility, and growing functionality of optical fiber and fiber optic devices are enabling several new modalities for imaging the mammalian nervous system in vivo. Fluorescence microendoscopy is a minimally invasive fiber modality that provides cellular resolution in deep brain areas. Diffuse optical tomography is a non-invasive modality that uses assemblies of fi...

Nowadays, fiber-optic are counted as one of the most important tools for data transfer due to having greater bandwidth and being more efficient compared with other similar technologies,. In this article, an integrated mathematical model for a three-level fiber-optic distribution network is presented with consideration of simultaneous backbone and local access networks the backbone network is a ...

Five monoclonal antibodies were selected by immunizing mice with embryonic chick optic nerve and screening the resultant hybridoma antibodies by immunofluorescence on sections of the retina. The optic nerve was chosen as the immunizing tissue since it is presumably enriched in ganglion cell-specific antigens. These antibodies bind to antigens which are largely localized to the inner part of the...

Abstract A stable and reliable clock synchronization system that transfers reference clocks to nodes is essential for telecom networks. Mainly, the of networks carried out through satellite links. However, evolving ubiquitous wireless communications, especially in some harsh environments, such as underground trenches, satellite-based scheme bears inevitable obstacles, which may cause strategic ...

To attain the volumetric information of the optic radiation in normal human brains, we performed diffusion tensor imaging examination in 13 healthy volunteers. Simultaneously, we used a brain normalization method to reduce individual brain variation and increase the accuracy of volumetric information analysis. In addition, tractography-based group mapping method was also used to investigate the...

This work presents a novel fiber-optic sensing system, capable of monitoring debris flows or other natural hazards that produce ground vibrations. The proposed sensing system comprises a demodulator (BraggSCOPE, FS5500), which includes a broadband light source and a data logger, a four-port coupler and four Fiber Bragg Grating (FBG) accelerometers. Based on field tests, the performance of the p...