ABSTRACT This paper reports a wavelength-tunable microfluidic optical source for the fluorescence of dye-labeled biochemicals. A pulsed micro-arc is struck between a metal anode and a microfluidic cathode filled with an aqueous solution of BaCl2. Atomic transitions from the Ba atoms, which are sputtered into the glow region, provide strong emissions at 493 nm and 454 nm wavelengths. Undesirable...

In this paper, we have proposed a new design of two dimensional (2D) photonic crystal (PhC) Tunable channel drop filter (CDF) using ring resonators. The increasing interest in photonic integrated circuits (PIC's) and the increasing use of all-optical fiber networks as backbones for global communication systems have been based in large part on the extremely wide optical transmission bandwid...

We propose and experimentally verify a novel approach to achieve phase-coherence orthogonally polarized optical single sideband (OSSB) modulation with a tunable optically carrier-to-sideband ratio (OCSR). In our scheme, the orthogonally polarized OSSB signal is achieved using a dual-polarization quadrature phase shift keying (DP-QPSK) modulator without an optical band-pass filter (OBPF). Theref...

We demonstrate low-power all-optical tunable filters with long-period gratings formed in graphene-buried polymer waveguides, where the heat generated by graphene's absorption of TE-polarized pump light serves to tune TM-polarized resonance band. Our experimental designed for operation at ∼1550 nm and pumped 980 nm, which contain ∼6-mm long graphene, achieve a tuning efficiency approximately –0....

Abstract This paper proposes a tunable filter composed of semiconductor-insulator-semiconductor (SIS) waveguide with ring resonator at terahertz(THz) frequency. The two-dimensional study the proposed structure has been done using finite element method. It is observed that device can be used for filtering THz frequency within range 0.4 to 0.9 by varying structural parameters. simulated promising...

This paper describes the Q enhancement of inductor or resonance circuit based on the controlled CMOS transonductance, which is applicable to either on-chip inductor or off-chip inductor. The proposed circuit configuration of high Q enhancement is evaluated for the RF transmit filter of a LTE mobile comm’s micro base station, with the Q factor of over 3000 and the capacity of 10W. A tunable filt...

Cost-effective plug-and-play optical (PPO) nodes may enable a new generation of self-configuring and simple-to-deploy optical networks. Three possible PPO node architectures are discussed in the paper along with their built-in opitcal fiber characterization techniques. Introduction The deployment of optical networks is in part delayed by two factors: the excessive cost of optical node equipment...

In this study, a technique for the optimization of the optical characteristics of multi-channel filters after fabrication is proposed. The multi-channel filter under consideration is based on a Si photonic crystal (PhC), tunable liquid crystal and opto-fluidic technologies. By filling air grooves in the one-dimensional, Si-Air PhC with a nematic liquid crystal, an efficiently coupled multi-chan...