D06–Scaling Effects on the Plasmonic Enhancement of Butt-Coupled Waveguide Photodetectors

Ding Q., Sant S., Schenk A.

We employed 3D opto-electrical simulations to study the scaling effects of a plasmonic structure on the optical performance of butt-coupled waveguide photodetectors by placing an Ag stripe on top of the intrinsic region. It is found that cut-offs which are limited by carrier drift in the high-field region of the non-plasmonic device improve with longer […]

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PD05–Design of a Broadband Integrated Notch Filter in Silicon Nitride

Schweikert C., Hoppe N., Elster E., Föhn T., Vogel W., Berroth M.

A broadband integrated notch filter, using the silicon nitride (Si3N4) platform, is presented. It achieves an extinction ratio (ER) of 60 dB and a full width at half maximum (FWHM) of 10 nm at the central wavelength (CW) 785 nm. The main filter components are Bragg gratings (BGs). For separating the occurring reflections from the […]

171

PD10–Statistical Analysis of Nonlinear Harmonic Distortions in Single Drive Mach Zhender Modulators

Alzoubi S., Shehata M.

In this preliminary investigation, a statistical approach is proposed to analyze the nonlinear harmonic distortions introduced by Mach-Zehnder modulators (MZMs) in response to arbitrarily random radio frequency (RF) excitation signals. The proposed analysis is based on a simple and accurate reformulation of the MZM transfer characteristics using the Taylor series expansion and the Binomial Theorem. […]

150

LD01–Third Order Dispersion in Optical Time Delayed Systems: The case of Mode-Locked Vertical External-Cavity Surface-Emitting Lasers

Javaloyes J., Schelte C., Hessel D., Gurevich S. V., Camelin P., Marconi M., Huyet G., Giudici M.

Time-delayed dynamical systems materialize in situations where distant, point-wise, nonlinear nodes exchange information that propagates at a finite speed. However, they are considered devoid of dispersive effects, which are known to play a leading role in pattern formation and wave dynamics. We show how dispersion may appear naturally in delayed systems and we exemplify our […]

174

N02–Nucleation chronology and electronic properties of In(As,Sb,P) graded-composition quantum dots

Marquardt O., Boeck T., Trampert A., Gambaryan K. M.

We have studied nucleation process and electronic properties of graded-composition quantum dots(GCQDs) grown from In-As-Sb-P in the liquid phase for application in mid-infrared devices like photoresistors or photoconductive cells. The GCQD ensemble exhibits diameters of 10 – 120 nm and heights of 2 – 20 nm. Compositional grading is a typical feature of quantum dots […]

141

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SC03–Microscopic approach to reciprocity and photon recycling in ultrathin solar cells

Aeberhard U.

In contrast to their bulk counterparts, ultrathin solar cells exhibit bias-dependent optical properties. This has severe implications for the validity of conventional opto-electronic reciprocity relations. We review the predictions of this phenomenon from quantum-kinetic theory and discuss the experimental confirmation, as well as the extension of the theoretical framework for the rigorous assessment of photon […]

204

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NM09–A fiber optic probe for thermal therapy

Hernández-Arenas A., Pimentel-Domínguez R., Vélez-Cordero J. R., Hernández-Cordero J.

We demonstrate a novel fiber optic device for controlled generation of photothermal effects. The fiber probe is pumped by a laser diode and incorporates polymer composites allowing to generate highly localized heat and obtain temperature measurements simultaneously. We analyze the temperature field in the vicinity of the device through computer simulations and these are validated […]

161

D07–Numerical simulation on the dependence of carrier transport characteristics on the thickness of the absorbing layer for GaAs-based blocked impurity band (BIB) terahertz detectors

Wang X., Chen Yulu, Wang B., Zhang C., Chen X., Zhang H.

The dependence of carrier transport characteristics on the thickness of the absorbing layer for Gallium Arsenide (GaAs) blocked-impurity-band (BIB) terahertz detector has been investigated in detail. It is found that responsivity linearly increases with the increased thickness of absorbing layer first, and after achieving a peak value, and then starts to dropping slowly.

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PD04–Towards an efficient simulation framework for plasmonic organic hybrid E/O modulators

Tibaldi A., Ghomashi M., Bertazzi F., Vallone M., Goano M., Ghione G.

Due to the large computational resources required, with CPU times of the order of several days, full-wave optical simulators can be hardly exploited for the modeling and optimization of plasmonic organic hybrid electro/optic modulators. With the aim to drastically reduce such complexity, in this work we present a divide-et-impera strategy reducing the number of FDTD […]

159

4

PD11–Tunable Polarization Splitter Based on Asymmetric Dual-core Liquid Photonic Crystal Fiber

Younis B. M., Hameed M. F. O., Obayya S. S. A.

An asymmetric dual core photonic crystal fiber (ADC-PCF) tunable polarization splitter is reported and analyzed. The left core of the DC-PCF is infiltrated with nematic liquid crystal (NLC) material to control the wavelength at which coupling occurs between the dual cores of the proposed structure. Moreover, the suggested design can be tuned to split out […]

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