Scheduled System Maintenance
On Friday, October 20, IEEE Xplore will be unavailable from 9:00 PM-midnight ET. We apologize for the inconvenience.

# IEEE Journal of Quantum Electronics

## Filter Results

Displaying Results 1 - 20 of 20
• ### [Front cover]

Publication Year: 2009, Page(s): C1
| PDF (139 KB)
• ### IEEE Journal of Quantum Electronics publication information

Publication Year: 2009, Page(s): C2
| PDF (37 KB)

Publication Year: 2009, Page(s):213 - 214
| PDF (43 KB)
• ### Slab Overtone CO Laser Operating in the 2.5–4.0 Micron Spectral Range

Publication Year: 2009, Page(s):215 - 217
Cited by:  Papers (3)
| | PDF (81 KB) | HTML

A compact sealed-off repetitively pulsed radio frequency discharge slab overtone CO laser was studied and developed. Maximum average output power was 0.3 W at a laser efficiency of 0.5%. The laser spectrum consisted of 80 vibrational-rotational spectral lines within the wavelength range of 2.5-4.0 microns. View full abstract»

• ### Optical Beam Quality in Free-Electron Lasers

Publication Year: 2009, Page(s):218 - 222
Cited by:  Papers (5)
| | PDF (367 KB) | HTML

The mode quality of the output of free-electron lasers (FELs) is near the diffraction limit. In this paper, we analyze the optical mode quality in FELs using the M 2 parameter, which is a measure of the size and divergence of the optical beam. We calculate M 2 in two ways: 1) by a direct integration over the transverse mode structure and 2) by allowing the mode ... View full abstract»

• ### Chromatic Dispersion Monitoring for High-Speed WDM Systems Using Two-Photon Absorption in a Semiconductor Microcavity

Publication Year: 2009, Page(s):223 - 232
Cited by:  Papers (7)
| | PDF (474 KB) | HTML

This paper presents a theoretical and experimental investigation into the use of a two-photon absorption (TPA) photodetector for use in chromatic dispersion (CD) monitoring in high-speed, wavelength division multiplexing network. In order to overcome the inefficiency associated with the nonlinear optical-to-electrical TPA process, a microcavity structure is employed. An interesting feature of such... View full abstract»

• ### Design of Ultrahigh- $Q$ 1-D Photonic Crystal Microcavities

Publication Year: 2009, Page(s):233 - 239
Cited by:  Papers (5)
| | PDF (284 KB) | HTML

Waveguide based 1-D photonic crystal (PC) microcavities in silicon-on-insulator are investigated by 2-D finite-difference time-domain method. Values up to 6.7 times106 for the quality factor (Q) are feasible if the cavities are properly designed. The factors that govern Q are analyzed in both real space and momentum space. Etching down into the SiO2 layer is fou... View full abstract»

• ### Theoretical and Experimental Study of High-Speed Small-Signal Cross-Gain Modulation of Quantum-Dot Semiconductor Optical Amplifiers

Publication Year: 2009, Page(s):240 - 248
Cited by:  Papers (69)
| | PDF (1230 KB) | HTML

We numerically and experimentally investigate the high-speed small-signal cross-gain modulation (XGM) characteristics of a quantum-dot (QD) semiconductor optical amplifier (SOA). From a p-doped QD SOA operating at 1.3 mum, high-speed small-signal XGM responses up to 40 GHz are measured from low to high injection currents and improve at high injection currents. In the numerical model, we set up abo... View full abstract»

• ### Spatially Resolved Characterization of the Coherence Area in the Incoherent Emission Regime of a Broad-Area Vertical-Cavity Surface-Emitting Laser

Publication Year: 2009, Page(s):249 - 255
Cited by:  Papers (9)
| | PDF (1889 KB) | HTML

We present direct measurements of the spatial coherence area of a pulsed broad-area vertical-cavity surface-emitting laser using a reversing wavefront interferometer. With this technique, we can assess the size and uniformity of the coherence area across the laser aperture, being of importance for projection applications. We show that the output beam can be considered quasi-homogeneous and that th... View full abstract»

• ### An Intracavity Optical Parametric Oscillator With Very High Repetition Rate and Broad Tunability Based Upon Room Temperature Periodically Poled $hbox{MgO}:hbox{LiNbO}_{3}$ With Fanned Grating Design

Publication Year: 2009, Page(s):256 - 263
Cited by:  Papers (6)  |  Patents (2)
| | PDF (443 KB) | HTML

We report a low-pump-threshold, very high-repetition-rate, singly resonant optical parametric oscillator (OPO) pumped internally to a diode-pumped, Q-switched Nd:YVO4 laser. The OPO, based upon a 27.0-32.5-mum periodically poled MgO:LiNbO3 crystal with fan grating design, exhibits a broad tunability range of 1.38-1.79 mum (Deltalambdas = 411 nm) and 2.62-4.64 mum (... View full abstract»

• ### Optimizing the Extinction Ratio and Error Bit Penalty of the On-Off-Keying Pulse Data With Gain-Constrictive SOA

Publication Year: 2009, Page(s):264 - 272
Cited by:  Papers (1)
| | PDF (1178 KB) | HTML

On/off extinction ratio and receiving power penalties of a 10-Gb/s all-optical on-off-keying pulse data generated from a multiwavelength dark-optical-comb injected semiconductor optical amplifier (SOA) is analyzed. Such an SOA with a temporally constricted gain window is employed to offer an on-off-keying (OOK)-generated data stream with on/off extinction ratio of 17 dB and bit error rate (BER) of... View full abstract»

• ### The Frequency Behavior of the Intermodulation Distortions of Modified Uni-Traveling Carrier Photodiodes Based on Modulated Voltage Measurements

Publication Year: 2009, Page(s):273 - 277
Cited by:  Papers (10)
| | PDF (654 KB) | HTML

The effect of modulated voltage on the nonlinear response of an InGaAs-InP charge-compensated modified uni-traveling carrier photodiode is characterized using a modulated bias measurement setup. Based on experimental results for the dependence of responsivity and photodetector capacitance on bias voltage, we use a simple equivalent circuit model to explain the frequency characteristics of the inte... View full abstract»

• ### High-Power Sr Atom Laser Excited in Nanosecond Pulsed Longitudinal $hbox{He-SrBr}_{2}$ Discharge

Publication Year: 2009, Page(s):278 - 281
Cited by:  Papers (7)
| | PDF (539 KB) | HTML

An active volume scaling in bore and length of an Sr atom laser excited in a nanosecond pulsed longitudinal He-SrBr2 discharge is carried out. The optimal discharge conditions for achieving of a maximal average output power at several Sr atom and ion lines are found. At multiline operation, a record average output power of 4.26 W is obtained, more than 90% of which is concentrated on th... View full abstract»

• ### Pulse Formation, Harmonic Mode-Locking, and Stability in Actively Mode-Locked Laser Cavities

Publication Year: 2009, Page(s):282 - 291
Cited by:  Papers (2)
| | PDF (359 KB) | HTML

Theory and simulations of the mode-locking dynamics in an active cavity driven by an acoustooptic modulator is considered. Three solution types and their stability are considered: plane-waves, solitons, and periodic pulse trains. By tuning the gain pumping in the cavity, all three solution types are exhibited with the transition in stability between each of these operating states characterized by ... View full abstract»

• ### All-Optical Ultrawideband Pulse Generation Using Cascaded Periodically Poled Lithium Niobate Waveguides

Publication Year: 2009, Page(s):292 - 299
Cited by:  Papers (10)  |  Patents (1)
| | PDF (1758 KB) | HTML

Ultrawideband (UWB) is defined by the Federal Communications Commission (FCC) for short-range high-capacity wireless communications. We propose and numerically demonstrate a novel scheme of all-optical UWB pulse generation based on parametric processes in cascaded periodically poled lithium niobate (PPLN) waveguides. The commonly used UWB pulses known as derivatives of the Gaussian pulse are consi... View full abstract»

• ### High-Detectivity and High-Single-Photon-Detection-Efficiency 4H-SiC Avalanche Photodiodes

Publication Year: 2009, Page(s):300 - 303
Cited by:  Papers (17)
| | PDF (597 KB) | HTML

We report large-area, 250-mum-diameter, 4H-SiC avalanche photodiodes with low dark current and high gain. At room temperature, the dark current density is 59.5 nA/cm2 at a gain of 1000. An external quantum efficiency of 48% at 280 nm is achieved at unity gain with a recessed-window structure. The differential resistance of the recessed-window device at zero bias is estimated to be 6time... View full abstract»

• ### Preliminary call: Nonlinear dynamics in photonic systems

Publication Year: 2009, Page(s): 305
| PDF (114 KB)
• ### Preliminary call: Nonlinear processing in optical fibers

Publication Year: 2009, Page(s): 306
| PDF (115 KB)

Publication Year: 2009, Page(s):307 - 308
| PDF (1065 KB)
• ### IEEE Journal of Quantum Electronics information for authors

Publication Year: 2009, Page(s): C3
| PDF (26 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