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# Journal of Lightwave Technology

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Displaying Results 1 - 25 of 49
• ### [Front cover]

Publication Year: 2009, Page(s): C1
| PDF (381 KB)
• ### Journal of Lightwave Technology publication information

Publication Year: 2009, Page(s): C2
| PDF (38 KB)

Publication Year: 2009, Page(s):2931 - 2932
| PDF (50 KB)
• ### Effects of Second-Order Coupling Coefficient Dispersion on Short-Pulse Propagation and Switching in an Active Two-Core Nonlinear Fiber Coupler

Publication Year: 2009, Page(s):2933 - 2940
Cited by:  Papers (4)
| | PDF (1188 KB) | HTML

The propagation and switching of short pulses in an active two-core fiber nonlinear directional coupler have been investigated theoretically by using the split-step Fourier method. The analysis highlights the effects of the second-order coupling coefficient dispersion, the linear gain coefficient, and the finite-gain bandwidth on the switching and propagation of short pulses. The research indicate... View full abstract»

• ### Reliable Networks Based on General Passive Routing Devices

Publication Year: 2009, Page(s):2941 - 2948
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Survivable passive network architectures based on interconnecting a small number of arrayed waveguide gratings (AWGs) have been described in prior work. Such networks are desirable for communication between a small number of users in environments that are susceptible to a high rate of failure and where providing power in the network core is difficult. In this paper, it is shown that these network ... View full abstract»

• ### Precision Threshold Current Measurement for Semiconductor Lasers Based on Relaxation Oscillation Frequency

Publication Year: 2009, Page(s):2949 - 2952
Cited by:  Papers (3)
| | PDF (101 KB) | HTML

The soft turn-on of semiconductor lasers leads to uncertainty in defining and measuring the laser threshold injection current, I th. Previously, practical calculation algorithms have been developed to achieve high-accuracy measurement of a clearly defined and reproducible quantity which is called I th. We demonstrate a new and higher accuracy measurement of ... View full abstract»

• ### Performance Investigation of One-to-Six Wavelength Multicasting of ASK–DPSK Signal in a Highly Nonlinear Bismuth Oxide Fiber

Publication Year: 2009, Page(s):2953 - 2957
Cited by:  Papers (14)
| | PDF (540 KB) | HTML

We investigate the wavelength multicast performance of a 20 Gb/s (Gigabit per second) orthogonally modulated ASK-differential phase-shift keying (DPSK) signal. The multicast is achieved using four-wave mixing in a 32 cm highly nonlinear bismuth oxide fiber. Six multicast channels each operating at 20 Gb/s are obtained at a 200-GHz spacing, resulting in a 120 Gb/s throughput. Widely opened eye diag... View full abstract»

• ### Reconfigurable Multifunctional Operation Using Optical Injection-Locked Vertical-Cavity Surface-Emitting Lasers

Publication Year: 2009, Page(s):2958 - 2963
Cited by:  Papers (4)  |  Patents (15)
| | PDF (1269 KB) | HTML

In this paper, we extend the system application of optical injection-locked (OIL) vertical-cavity surface-emitting lasers (VCSELs) to future optical networks by realizing multifunctional operation using a filter-assisted OIL-VCSEL scheme that can be reconfigured. By using a single chirp-adjustable injection-locked VCSEL (either single mode or multimode) followed by a tunable delay line interferome... View full abstract»

• ### Optical Reflectivity of Asymmetric Dielectric–Metal–Dielectric Planar Structures

Publication Year: 2009, Page(s):2964 - 2969
Cited by:  Papers (9)
| | PDF (399 KB) | HTML

We report simulations and experimental results on the incidence-angle dependence of the optical reflectivity of asymmetric dielectric-metal-dielectric planar structures. Transfer-matrix method and 2-D finite-element analysis revealed the presence of multiple resonances that were attributed to the surface plasmon (SP) polariton mode at the metal-dielectric interfaces and guided-wave polariton modes... View full abstract»

• ### Influence of Residual Facet Reflection on the Eye-Diagram Performance of High-Speed Electroabsorption Modulated Lasers

Publication Year: 2009, Page(s):2970 - 2976
Cited by:  Papers (4)
| | PDF (757 KB) | HTML

The influence of residual facet reflection on the small-signal modulation response and the large-signal eye-diagram performance of 40 Gb/s electroabsorption modulated lasers (EMLs) is studied. Measurement and simulation show that the eye-diagram performance is not only limited by the modulation bandwidth of the device, but also significantly degraded by the low frequency resonances in the frequenc... View full abstract»

• ### Measurement of Er-Doped Fiber Nonlinearity Using Continuous-Wave Self-Phase Modulation Method

Publication Year: 2009, Page(s):2977 - 2982
Cited by:  Papers (1)
| | PDF (197 KB) | HTML

The intensity-dependent nonlinear coefficient n 2/A eff of a short Er-doped, amplifying fiber is determined using a method thoroughly studied for measurements of passive fibers. Measurement uncertainty of 3.0% is achieved using modified continuous-wave self-phase modulation method. In addition to metrological aspects, we also discuss limitations and conditions i... View full abstract»

• ### Multistage Modified Fiber Drawing Process and Related Diameter Measuring System

Publication Year: 2009, Page(s):2983 - 2988
Cited by:  Papers (7)
| | PDF (1033 KB) | HTML

Recent progress on the drawing of micro and nanowires shows the length could only reach several millimeters because of the lack of material feeding mechanism. We report here a multistage modified fiber drawing process which allows a fiber preform to be drawn several times in the heating zone so that the desired diameter of microns and nanometers can be achieved more than 1 m long. Current results ... View full abstract»

• ### Mode Characteristics of the Strongly Anisotropic $a$-Axis Single-Crystal Fiber

Publication Year: 2009, Page(s):2989 - 2999
Cited by:  Papers (1)
| | PDF (828 KB) | HTML

The mode theory of the strongly anisotropic a axis step-index single-crystal fiber is studied in this paper. The electromagnetic field equations of the a axis step-index single-crystal fiber are solved under the strongly anisotropic condition, and the transverse electric field components are obtained. The dispersion equations far from cutoff, near cutoff, and in the guided mode regio... View full abstract»

• ### Efficient Computation of Longitudinal Lasing Modes in Arbitrary Active Cavities: The Bidirectional Time Evolution Method

Publication Year: 2009, Page(s):3000 - 3009
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In this paper, we develop the Bidirectional Time Evolution Method (BTEM) as an efficient technique to determine the frequencies of the longitudinal lasing modes in arbitrary 1-D active cavities. The BTEM is based on a mathematical property of linear Maxwell equations for active media at real frequencies: the backward Fourier transform of their frequency-domain solution provides nonphysical time... View full abstract»

• ### Limit of Effective Area for Single-Mode Operation in Step-Index Large Mode Area Laser Fibers

Publication Year: 2009, Page(s):3010 - 3016
Cited by:  Papers (43)
| | PDF (298 KB) | HTML

Step-index (SI) fiber designs are commonly used in achieving large mode area (LMA) and single-mode (SM) operation in fiber lasers. These fibers can either be intrinsically single-moded fibers or few-moded fibers, which can be forced into SM operation through bending. In this paper we evaluate the limitation of the effective area for SM operation by taking into account the effects of practical cons... View full abstract»

• ### 64-Channel Optical Pulse Stacker

Publication Year: 2009, Page(s):3017 - 3020
Cited by:  Papers (1)
| | PDF (550 KB) | HTML

In this paper, we demonstrate an all-fiber pulse-shaping system that can generate shape-controllable pulses with a short rise time and high resolution by adjusting variable optical attenuators of the 64 fiber channels independently. A 6.4 ns arbitrarily shaped pulse with less than 0.1 dB shaping precision is obtained by stacking 150 ps chirped subpulse of 1053 nm. The linewidth of pulse is 1.2 nm ... View full abstract»

• ### Versatile Characterization of Specialty Fibers Using the Phase-Sensitive Optical Low-Coherence Reflectometry Technique

Publication Year: 2009, Page(s):3021 - 3033
Cited by:  Papers (12)
| | PDF (1920 KB) | HTML

Emergence of new fibers families induces considerable requirements in terms of characterization and metrology (group delay, chromatic dispersion, birefringence, bending losses, etc.). The optical low-coherence reflectometry (OLCR) technique is demonstrated as a versatile method for the characterization of most types of optical fiber. A synthesis of multiple analysis concerning different families o... View full abstract»

• ### Enhanced Spurious-Free Dynamic Range Using Mixed Polarization in Optical Single Sideband Mach–Zehnder Modulator

Publication Year: 2009, Page(s):3034 - 3041
Cited by:  Papers (44)  |  Patents (2)
| | PDF (1032 KB) | HTML

We analyze in theory, simulation, and experiment the spurious-free dynamic range (SFDR) for a radio-over-fiber system using an optical single sideband (OSSB) Mach-Zehnder modulator (MZM) that is linearized using mixed polarization. The mixed polarization OSSB MZM makes use of a dual-electrode z-cut LiNbO3 MZM, where a linear polarizer is placed in front and in behind the optical modulat... View full abstract»

• ### Blind Equalization and Carrier Phase Recovery in a 16-QAM Optical Coherent System

Publication Year: 2009, Page(s):3042 - 3049
Cited by:  Papers (126)  |  Patents (8)
| | PDF (764 KB) | HTML

Blind equalization and carrier phase recovery in a simulated 14 Gbaud 16-QAM optical coherent system are investigated. Equalization techniques to compensate for linear transmission impairments are presented using the constant modulus algorithm (CMA), the recursive least-squares (RLS)-CMA, and the radius directed equalization (RDE). With 7 T/2-spaced taps, the RDE and the RLS-CMA can compensate up ... View full abstract»

• ### Characteristics of Thermally Diffused Transit Areas of Single-Mode Telecommunication Fibers

Publication Year: 2009, Page(s):3050 - 3056
Cited by:  Papers (2)
| | PDF (532 KB) | HTML

The paper deals with diffusion processes of the core dopant during thermal connection (splicing in electric arc) of telecommunication fibers whose parameters vary considerably. A method for defining values of diffusion coefficients GeO2 in SiO2 in splicing temperature has been presented. Better consistence of the dopant Gaussian and diffusion distribution has been found the l... View full abstract»

• ### Enhancement of CW THz Wave Power Under Noncollinear Phase-Matching Conditions in Difference Frequency Generation

Publication Year: 2009, Page(s):3057 - 3061
Cited by:  Papers (12)
| | PDF (218 KB) | HTML

We investigated methods for improvement of continuous-wave (CW) terahertz (THz) output power by laser diode (LD) pumping in noncollinear phase-matched difference frequency generation (DFG). The effects of interaction length and beam spot size of input lasers (near-IR) in GaP crystals were studied. The THz wave power dependence on various sizes of GaP crystals was investigated and it was observed t... View full abstract»

• ### Polarization- and Phase-Sensitive Low-Coherence Interferometry Setup for the Characterization of Integrated Optical Components

Publication Year: 2009, Page(s):3062 - 3074
Cited by:  Papers (14)
| | PDF (1177 KB) | HTML

A novel phase-sensitive and polarization-sensitive scheme to implement an optical low-coherence interferometry (OLCI) system is presented. With respect to conventional phase-sensitive OLCI, in our system the interference fringes of the coherent light used to recover phase information are conveniently detected by the same photodetector acquiring the low-coherence signal. This strategy guarantees th... View full abstract»

• ### Traffic Engineering in the Wavelength Domain for Optical Burst-Switched Networks

Publication Year: 2009, Page(s):3075 - 3091
Cited by:  Papers (1)
| | PDF (633 KB) | HTML

This paper addresses the possibility of using traffic engineering in the wavelength domain as a way to improve the performance of optical burst-switched (OBS) networks. With that aim, we detail a heuristic traffic engineering strategy that determines the order by which the ingress nodes of the network should search for an available wavelength for burst transmission, in order to minimize the probab... View full abstract»

• ### Optical Signal Processor Using Electro-Optic Polymer Waveguides

Publication Year: 2009, Page(s):3092 - 3106
Cited by:  Papers (10)
| | PDF (1687 KB) | HTML

We have investigated an optical signal processor using electro-optic polymer waveguides operating at a wavelength of 1.55 mum. Due to recent developments, many useful optical devices have become available such as optical filters, modulators, switches, and multiplexers. It will be useful to have a single optical device, which is reconfigurable to implement all of these functions. We call such a dev... View full abstract»

• ### Large Scale, All-Fiber Optical Cross-Connect Switches for Automated Patch-Panels

Publication Year: 2009, Page(s):3107 - 3115
Cited by:  Papers (1)
| | PDF (1478 KB) | HTML

Transparent, all-optical cross-connect switches provide non-blocking, one-to-one reconfigurable interconnections between any of N input fibers and any of N output fibers. Cross-connects based on all-fiber rather than free-space interconnections have the potential for low opto-mechanical complexity, miniaturization, high optical power handling and ideal optical performance. In ... View full abstract»

## Aims & Scope

The JOURNAL OF LIGHTWAVE TECHNOLOGY is comprised of original contributions, both regular papers and letters, covering work in all aspects of optical guided-wave science, technology, and engineering. Manuscripts are solicited which report original theoretical and/or experimental results which advance the technological base of guided-wave technology. Tutorial and review papers are by invitation only. Topics of interest include the following: fiber and cable technologies, active and passive guided-wave componentry (light sources, detectors, repeaters, switches, fiber sensors, etc.); integrated optics and optoelectronics; and systems, subsystems, new applications and unique field trials. System oriented manuscripts should be concerned with systems which perform a function not previously available, out-perform previously established systems, or represent enhancements in the state of the art in general.

Full Aims & Scope

## Meet Our Editors

Editor-in-Chief
Peter J. Winzer
Alcatel-Lucent Bell Labs