# IEEE Journal of Quantum Electronics

## Filter Results

Displaying Results 1 - 10 of 10
• ### FPGA-Based Optical Cavity Phase Stabilization for Coherent Pulse Stacking

Publication Year: 2018, Article Sequence Number: 1600111
| | PDF (3332 KB) | HTML

Coherent pulse stacking (CPS) is a new time-domain coherent addition technique that stacks several optical pulses into a single output pulse, enabling high pulse energy from fiber lasers. We develop a robust, scalable, and distributed digital control system with firmware and software integration for algorithms, to support the CPS application. We model CPS as a digital filter in the Z domain and im... View full abstract»

• ### A New Method of Diagnostics of the Quality of Heavily Yb-Doped Laser Media

Publication Year: 2018, Article Sequence Number: 1700106
| | PDF (1495 KB)

A new method of optical material diagnostics by measuring the heat release under illumination is proposed. Narrowband radiation triggers certain mechanisms of heating, while direct temperature measurement allows obtaining the amount of heat release in the medium. The mechanisms of heat production in heavily doped Yb:YAG crystals grown by different techniques are investigated using the new method. ... View full abstract»

• ### Intensity Noise Transfer Through a Diode-Pumped Titanium Sapphire Laser System

Publication Year: 2018, Article Sequence Number: 1700209
| | PDF (3441 KB) | HTML

In this paper, we investigate the noise performance and transfer in a titanium sapphire (Ti:S) laser system. This system consists of a distributed Bragg-reflector tapered diode laser, which is frequency doubled in two cascaded nonlinear crystals and used to pump the Ti:S laser oscillator. This investigation includes electrical noise characterizations of the utilized power supplies, the optical noi... View full abstract»

• ### Wavelength Blue-Shifting and Gain Spectral Bandwidth of InAs/InP Quantum Dots for Laser Applications Around $1.55~mu$ m

Publication Year: 2018, Article Sequence Number: 2000109
| | PDF (1899 KB) | HTML

It was found experimentally that growing an ultrathin GaP interlayer/sublayer before InAs quantum dots (QDs) grown on InGaAsP barrier lattice-matched to InP (001) substrates is an efficient way to tune the emission wavelength of InAs/InP QD lasers to $1.55~mu text{m}$ range at room temperature (RT). However, the impact of int... View full abstract»

• ### Stochastic Differential Equation Model for Spontaneous Emission and Carrier Noise in Semiconductor Lasers

Publication Year: 2018, Article Sequence Number: 2000206
| | PDF (204 KB)

We present a new stochastic differential equation model for the spontaneous emission noise and carrier noise in semiconductor lasers. The correlations between these two types of noise have often been neglected in recent studies of the effects of the noise on the laser dynamics. However, the classic results of Henry show that the intensity noise and the carrier noise are strongly negatively correla... View full abstract»

• ### Optimization Study of a Novel Few-Layer Graphene/Silicon Quantum Dots/Silicon Heterojunction Solar Cell Through Opto-Electrical Modeling

Publication Year: 2018, Article Sequence Number: 4800106
| | PDF (1507 KB) | HTML

Few-layer graphene/silicon quantum dots/silicon (FLG/SiQDs/Si) heterojunction solar cells consisting of a layer of SiQDs sandwiched between FLG and p- or n-type Si is examined by a device physics model incorporated with the optical characteristics of FLG and SiQDs. FLG/SiQDs/Si solar cells enhance short-circuit current density, because charge carriers can tunnel through the energy states in SiQDs.... View full abstract»

• ### Dynamics of Optoelectronic Oscillators With Electronic and Laser Nonlinearities

Publication Year: 2018, Article Sequence Number: 5000207
| | PDF (661 KB) | HTML

We present a theoretical and experimental study of a low-frequency optoelectronic oscillator featuring both laser-diode and Van der Pol-like nonlinearities. In this architecture, the device performing the electrical-to-optical conversion is the laser-diode itself instead of an external electro-optical modulator, while the electric branch of the oscillator is characterized by a Van der Pol nonlinea... View full abstract»

• ### Mode Coupling and Scattering Parameters in a Parity-Time Symmetric Resonant Integrated Coupler

Publication Year: 2018, Article Sequence Number: 6300206
| | PDF (641 KB)

We investigate theoretically, in the frame of coupled-mode theory, a parity-time symmetric directional coupler inserted into a symmetric resonant cavity, all ports being terminated by four identical lossless reflectors. The scattering parameters are expressed under analytic closed forms in several equivalent bases, underlining the fact that PT Symmetry can be thought of as mode coupling between th... View full abstract»

• ### Measurement and Spectroscopic Assignment of Far-Infrared Laser Frequencies Generated by 13CD3OH and CH3 18OH

Publication Year: 2018, Article Sequence Number: 8500105
| | PDF (2644 KB)

The frequencies for thirty one far-infrared laser emissions, generated by an optically pumped molecular laser with either 13CD3OH or CH3 18OH as its laser medium, have been measured for the first time. The frequencies, ranging from 0.443 to 3.243 THz, were measured with a heterodyne technique to a one-sigma fractional uncertainty no less than ± 5 ... View full abstract»

• ### An Optical-Driven Quantum Shuttle: Modeling, Dynamics and Controllability

Publication Year: 2018, Article Sequence Number: 9200107
| | PDF (1359 KB)

In this paper, we investigate dynamic properties and controllability of a cavity optomechanical system mechanically connected to a single-electron quantum shuttle, which includes three coupled modes, i.e., optical, mechanical, and electrical modes. Based on quantum description and quantum Langevin framework, the dynamics of these three modes under conditions of weak and strong optical driving are ... View full abstract»

## Aims & Scope

The IEEE Journal of Quantum Electronics is dedicated to the publication of manuscripts reporting novel experimental or theoretical results in the broad field of the science and technology of quantum electronics.

Full Aims & Scope

## Meet Our Editors

Editor-in-Chief
Prof. Hon Ki Tsang
Chinese University of Hong Kong