# IEEE Journal of Quantum Electronics

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Displaying Results 1 - 25 of 25
• ### [Front cover]

Publication Year: 2008, Page(s): C1
| PDF (204 KB)
• ### IEEE Journal of Quantum Electronics [publication information]

Publication Year: 2008, Page(s): C2
| PDF (35 KB)

Publication Year: 2008, Page(s):1131 - 1132
| PDF (43 KB)
• ### High-Power Low-Noise Fiber Brillouin Amplifier for Tunable Slow-Light Delay Buffer

Publication Year: 2008, Page(s):1133 - 1138
Cited by:  Papers (19)
| | PDF (419 KB) | HTML

A high-power low-noise fiber Brillouin amplifier (FBA) has been demonstrated for slow-light delay buffer. Its features including gain, gain saturation, and noise figure (NF), have been characterized. Among them, the gain saturation is highlighted because it is a fundamental limitation for FBA-based slow-light buffer. It is testified that the gain saturation is more easily achieved for lower signal... View full abstract»

• ### Thermal Behavior Investigation of Terahertz Quantum-Cascade Lasers

Publication Year: 2008, Page(s):1139 - 1144
Cited by:  Papers (14)
| | PDF (551 KB) | HTML

This paper investigates the heat conduction behavior of a terahertz (THz) quantum-cascade laser (QCL) active region by measuring its temperature using in-situ microprobe band-to-band photoluminescence (PL) technique. The heat resistance of different regions in QCL structure is derived from the temperature measurement. Experimental results show that thinning the substrate from 300 mum thick to 140 ... View full abstract»

• ### Simulation Analysis of Higher Order Laterally-Coupled Distributed Feedback Lasers

Publication Year: 2008, Page(s):1145 - 1151
Cited by:  Papers (16)
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Laterally-coupled distributed feedback (LC-DFB) lasers use a lithographic fabrication step to define the distributed feedback grating, avoiding subsequent regrowth. Using higher order gratings can enhance the lithographic tolerance for lower resolution patterning, yielding lasers more amenable to fabrication. We show that LC-DFB lasers with higher order gratings, although requiring a higher thresh... View full abstract»

• ### Optimization of Passively Repetitively $Q$-Switched Three-Level Lasers

Publication Year: 2008, Page(s):1152 - 1157
Cited by:  Papers (14)
| | PDF (357 KB) | HTML

A generalized model of a passively repetitively Q-switched three-level laser is presented. The method for evaluation of the small-signal gain coefficient and the dissipative losses of a three-level laser is shown. To demonstrate the use of this optimization procedure, it was applied to a microchip laser generating 1.5- mum radiation. The model may be expanded for a four-level laser by replacing th... View full abstract»

• ### A LiÉnard Oscillator Resonant Tunnelling Diode-Laser Diode Hybrid Integrated Circuit: Model and Experiment

Publication Year: 2008, Page(s):1158 - 1163
Cited by:  Papers (27)
| | PDF (531 KB) | HTML

We report on a hybrid optoelectronic integrated circuit based on a resonant tunnelling diode driving an optical communications laser diode. This circuit can act as a voltage controlled oscillator with optical and electrical outputs. We show that the oscillator operation can be described by Lienard's equation, a second order nonlinear differential equation, which is a generalization of the Van der ... View full abstract»

• ### 2 MHz AO $Q$ -switched ${rm TEM}_{00}$ Grazing Incidence Laser With 3 at.% Neodymium Doped Nd:YVO$_{4}$

Publication Year: 2008, Page(s):1164 - 1170
Cited by:  Papers (12)
| | PDF (950 KB) | HTML

We present a detailed experimental and theoretical study of the ultrahigh repetition rate AO Q -switched TEM00 grazing incidence laser. Up to 2.1 MHz Q-switching with TEM00 output of 8.6 W and 2.2 MHz Q -switching with multimode output of 10 W were achieved by using an acousto-optics Q -switched grazing-incidence laser with optimum grazing-incidenc... View full abstract»

• ### Lasing Mode Hysteresis Characteristics in Semiconductor Ring Lasers

Publication Year: 2008, Page(s):1171 - 1179
Cited by:  Papers (5)
| | PDF (975 KB) | HTML

Wavelength and directional hysteresis due to increasing and decreasing current and temperature have been investigated. Measurements indicate that lasing direction hysteresis associated with changes in injection current can be attributed to the resulting shift in the linear gain peak which is due to the change in device temperature. Interaction between the linear gain spectrum and the asymmetric no... View full abstract»

• ### Ultra-High-Speed Deeply Etched Electrooptic Polymer Modulator

Publication Year: 2008, Page(s):1180 - 1187
Cited by:  Papers (1)
| | PDF (290 KB) | HTML

In this paper, we present a novel ultra-high-speed polymer-based electrooptic modulator that incorporates high permittivity material cladding on the side walls of the device. We show that by packing the side walls of the modulator with this material and varying the width of the dielectric stack and electrodes that broadband operation can be achieved while maintaining a very low drive voltage in a ... View full abstract»

• ### Dependence of the Performance of Single Photon Avalanche Diodes on the Multiplication Region Width

Publication Year: 2008, Page(s):1188 - 1195
Cited by:  Papers (15)  |  Patents (1)
| | PDF (385 KB) | HTML

The dependence of the performance of separate-absorption-multiplication (SAM) single-photon avalanche diodes (SPADs) on the width of the multiplication region is theoretically investigated. The theory is applied to SAM SPADs with InP homojunction multiplication regions and InAlAs-InP heterojunction multiplication regions. In both cases the absorber layer is InGaAs. Two scenarios for the dark count... View full abstract»

• ### Passive Nonlinear Pulse Shaping in Normally Dispersive Fiber Systems

Publication Year: 2008, Page(s):1196 - 1203
Cited by:  Papers (51)
| | PDF (521 KB) | HTML

We propose a novel approach to characterize the parabolically-shaped pulses that can be generated from more conventional pulses via nonlinear propagation in cascaded sections of commercially available normally dispersive (ND) fibers. The impact of the initial pulse chirp on the passive pulse reshaping is examined. We furthermore demonstrate that the combination of pulse pre-chirping and propagatio... View full abstract»

• ### Effect of Quantum Well Compressive Strain Above 1% On Differential Gain and Threshold Current Density in Type-I GaSb-Based Diode Lasers

Publication Year: 2008, Page(s):1204 - 1210
Cited by:  Papers (18)
| | PDF (251 KB) | HTML

InGaAsSb/AlGaAsSb quantum well (QW) diode laser structures with either 1% or 1.5% compressively strained QWs were grown on GaSb substrates by molecular beam epitaxy. Wide-stripe lasers fabricated from structures of both types have room-temperature operating wavelengths near 2.3 microns. The room-temperature threshold current density of 1-mm-long uncoated devices with 1.5% strained QWs was lower th... View full abstract»

• ### Ga-Doped ZnO Transparent Conductive Oxide Films Applied to GaN-Based Light-Emitting Diodes for Improving Light Extraction Efficiency

Publication Year: 2008, Page(s):1211 - 1218
Cited by:  Papers (23)  |  Patents (2)
| | PDF (526 KB) | HTML

In this study, Ga-doped ZnO (GZO) thin films were deposited on a sapphire substrate utilizing a magnetron sputtering approach. ZnO and Ga2O3 targets were employed as the sputtering sources during a cosputtering deposition. After thermal annealing in nitrogen ambient conditions, the electrical resistivity and optical transparency of the GZO films were analyzed in detail. The G... View full abstract»

• ### Confocal Luminescence Investigations of Two-Beam Direct-UV-Written Silica-On-Silicon Waveguides

Publication Year: 2008, Page(s):1219 - 1224
Cited by:  Papers (1)
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Two-beam direct-UV-written silica-on-silicon waveguides have been investigated by confocal micro-luminescence experiments. The spatial and spectral analysis of the visible luminescence observed after 488 nm excitation has revealed the presence of various UV-induced defects due to the different compositions of core and under/over clad layers. The shape and waveguide's dimensions have been estimated... View full abstract»

• ### Negative Uniaxial Crystal Behavior Of Circular Photonic Crystal

Publication Year: 2008, Page(s):1225 - 1231
Cited by:  Papers (2)
| | PDF (1259 KB) | HTML

In this paper, we introduce an unconventional photonic crystal (PhC) geometry which defines two resonance frequencies. The presented circular PhC structure behaves as a negative uniaxial crystal and admits two preferred propagation directions defined by an extraordinary and an ordinary refractive index representing two field polarizations. The circular grating profile splits the electromagnetic fi... View full abstract»

• ### Spectral Oscillation in Optical Frequency-Resolved Quantum-Beat Spectroscopy With a Few-Cycle Pulse Laser

Publication Year: 2008, Page(s):1232 - 1241
Cited by:  Papers (17)
| | PDF (731 KB) | HTML

Impulsive stimulated resonant Raman scattering was induced by a 5.7 fs visible pulse from a non-collinear optical parametric amplifier. The pulse duration corresponded to 2.8 cycles of the central wavelength of the laser spectrum at 610 nm. The induced spectral change was time-resolved with a 0.8 fs delay time step and the effective absorbance change DeltaA(lambda,t) was calculated f... View full abstract»

• ### Active Region Cascading for Improved Performance in InAs–GaSb Superlattice LEDs

Publication Year: 2008, Page(s):1242 - 1247
Cited by:  Papers (9)
| | PDF (900 KB) | HTML

Cascading of active regions in InAs-GaSb superlattice light-emitting diodes (LEDs) grown by molecular beam epitaxy is demonstrated as an effective means of increasing optical emission. Devices were fabricated into 120 x 120 mum2 mesas to demonstrate suitability for high resolution projection systems. Devices with 1, 4, 8, and 16 stages were designed for midwave infrared emission at 3.8 ... View full abstract»

• ### The Behavior of CARS in Anti-Stokes Raman Converters Operating at Exact Raman Resonance

Publication Year: 2008, Page(s):1248 - 1255
Cited by:  Papers (6)
| | PDF (631 KB) | HTML

In this paper, we present a model that fully describes the quasi-stationary behavior of coherent anti-Stokes Raman scattering (CARS) in an anti-Stokes Raman converter operating at exact Raman resonance. We demonstrate that the CARS mechanism actually comprises two opposite and competing interactions, which respectively create and annihilate phonons in the Raman medium. Furthermore, we show that bo... View full abstract»

• ### Design Considerations for Asymmetric Multiple Quantum Well Broad Spectral Width Superluminescent Diodes

Publication Year: 2008, Page(s):1256 - 1262
Cited by:  Papers (5)
| | PDF (232 KB) | HTML

We investigated the design of broad spectral width super luminescent diodes (SLDs) with asymmetric multiple-quantum-well (AMQW) active regions. The design is based on theoretical modeling, which starts with calculation of the gain. Two InGaAsP/InP AMQW SLD structures centered at 1.3 mum were grown and processed. Both gave a broad spectral width of >80 nm when operated at the transition carrier ... View full abstract»

• ### Analytical Solutions to Estimate the Temperature Sensitivity of Arrayed Waveguide Gratings With Stress Plates

Publication Year: 2008, Page(s):1263 - 1270
Cited by:  Papers (1)
| | PDF (1113 KB) | HTML

Controlling thermal stress is a promising way to reduce the temperature instability of arrayed waveguide gratings (AWGs). A simple method to apply thermal stress is to attach stress plates on the arrayed waveguides. In this paper, a general analytical method to study the temperature sensitivity of the central wavelength in modified AWGs with stress plates is developed. The complete analysis shows ... View full abstract»

• ### 2008 Index IEEE Journal of Quantum Electronics Vol. 44

Publication Year: 2008, Page(s):1272 - 1298
| PDF (307 KB)
• ### IEEE Journal of Quantum Electronics information for authors

Publication Year: 2008, Page(s): C3
| PDF (32 KB)

Publication Year: 2008, Page(s): 1271
| PDF (101 KB)

## 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