An all-fiber isolator with 17 dB optical isolation is demonstrated. The fiber Faraday rotator uses 56 wt. % terbium (Tb)-doped silicate fiber, and the fiber polarizers are Corning SP1060 single-polarization fiber. The effective Verdet constant of the Tb-doped fiber is measured to be -24.5+/-1.0 rad/(Tm) at 1053 nm, which is 20 times larger than silica fiber and 22% larger than previously report...

In this paper, we report the mode area scaling of a rare-earth doped step index fiber by using low numerical aperture. Numerical simulations show the possibility of achieving an effective area of ~700 um² (including bend induced effective area reduction) at a bend diameter of 32 cm from a 35 μm core fiber with a numerical aperture of 0.038. An effective single mode operation is ensured followin...

Physically effective neutral detergent fiber (peNDF) is the fraction of neutral detergent fiber (NDF) that stimulates chewing activity and contributes to the floating mat of large particles in the rumen. Multiplying dietary NDF by particle size has been used as an estimate of peNDF. In re-evaluating the concept of peNDF, we compared the use of peNDF as dietary NDF × particle size with the use o...

In this paper the impact of a Radio over Fibre (RoF) subsystem on the capacity performance of Wideband Code Division Multiple Access (WCDMA) is evaluated. The study investigates the use of pilot aided channel estimation to compensate for the optical subsystem nonlinearities for different channel conditions, estimation intervals, and coding schemes. The results show that pilot aided channel esti...

Characterization of properties of composites has attracted a great deal of attention towards exploring their applications in engineering. The purpose of this work is to study the difference of two computational microstructure models which are widely used for determining effective transverse elastic properties of unidirectional fiber reinforced composites. The first model based on the classic me...

Objective: The aim of this study was to identify the significant difficulties in access to health care services experienced by patients with physical disabilities. Method: A cross-sectional study at King Abdul Aziz Medical City, Riyadh, Saudi Arabia on 235 persons with physical disability, from 1 January to 30 June 2014. Results: A total of 88% of the people with disability reported having the ...