Optical soliton pulses offer great promise as a means for transmitting high data rate information in optical fibers over trans-oceanic distances. This thesis addresses two aspects of optical soliton communication. First, soliton propagation in the presence of a small-signal background continuum is discussed. It is essential to examine soliton-continuum interaction as it may lead to timing jitte...

This paper presents the design, fabrication and measurement results of a nano-photonic bandgap crystal (PhC) integrated circuit device. The PhC comprises of orthogonally intersecting single line defect Bragg reflection waveguides, partially reflecting PhC mirrors and a small volume optical resonator. A PhC bandgap optical intersection with size of ~ 5 × 5 um, waveguide width of 800 nm, and oper...

Coherence multiplexing (CM) is a relatively unknown form of optical CDMA, which is particulary suitable in medium bit rate, short-range optical networks like LANs. The main purpose of the technique is to allow multiple users to transmit through a common optical fiber simultaneously. When this number is too large, however, the BER will become unacceptably high. Therefore a protocol is needed to ...

in this paper, based on the coupled-mode and carrier rate equations, a dynamic model and numerical analysis of a multi quantum well (mqw) chirped distributed feedback semiconductor optical amplifier (dfb-soa)  all-optical flip-flop is precisely derived. we have analyzed the effects of strains of qw and mqw and cross phase modulation (xpm) on the dynamic response, and rise and fall times of the ...

Optical jitter can result in the beam pointing inaccuracy and poor optical system performance. With a correlated measurement of the disturbance, improved control performance can be achieved. In this research, an adaptive optimal sensing strategy for optical systems is proposed. When an array of reference sensors is available, an optimal set of reference sensors that are coupled to modes of inte...

this study was aimed to investigate the possibility of using magnesium hydroxide as an alternative for sodium hydroxide in deinking of newsprint and magazine mixture. the old newsprint and magazine mixture (onp/omg -70/30) was treated by magnesium hydroxide at three levels: 1, 1.5 and 2 percent (based on oven dried pulp weight), for 20 min. optical and mechanical properties and effluent cod loa...