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# Journal of Lightwave Technology

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Displaying Results 1 - 25 of 30
• ### [Front cover]

Publication Year: 2012, Page(s): C1
| PDF (562 KB)
• ### Journal of Lightwave Technology publication information

Publication Year: 2012, Page(s): C2
| PDF (38 KB)

Publication Year: 2012, Page(s):1375 - 1376
| PDF (155 KB)
• ### Investigation of Optical Flatness of Stretched Membrane Drum-Type Micromirror

Publication Year: 2012, Page(s):1377 - 1385
Cited by:  Papers (3)
| | PDF (1467 KB) | HTML

Realizing an optically flat and lightweight high-speed scanning micromirror still remains as a challenging problem. In this paper, we propose a drum-type lightweight micromirror that is capable of providing high scanning speed and retaining optical flatness, simultaneously. The fabrication technique and surface deformation analysis of the proposed micromirror are described. The drum-type design is... View full abstract»

• ### Characterization of Multimode Fiber by Selective Mode Excitation

Publication Year: 2012, Page(s):1386 - 1392
Cited by:  Papers (29)
| | PDF (1574 KB) | HTML

Each mode of a 2 km 50 μm OM2 grade multimode fiber is precisely excited at multiple orientations using a binary phase spatial light modulator (SLM) to generate a detailed modal description of the fiber and minimize modal dispersion over 4.5 THz of optical bandwidth. View full abstract»

• ### Higher-Order Finite-Difference Modal Method With Interface Conditions for the Electromagnetic Analysis of Gratings

Publication Year: 2012, Page(s):1393 - 1398
Cited by:  Papers (3)
| | PDF (958 KB) | HTML

We present a finite-difference modal method (FDMM) combined with higher-order interface conditions to analyze the diffraction of grating structures. The generalized Douglas (GD) scheme is also adopted to further enhance the convergence. Numerical results show the FDMM generally results in faster convergence than the commonly used coupled-wave analysis (RCWA) as higher-order formulation, such as th... View full abstract»

• ### Capacity Analysis of M-PAM Inverse Source Coding in Visible Light Communications

Publication Year: 2012, Page(s):1399 - 1404
Cited by:  Papers (25)  |  Patents (1)
| | PDF (1449 KB) | HTML

We previously proposed inverse source coding (ISC) to maximize the transmission rate in visible light communications with dimming capability using ON-OFF keying. First, this paper extends the proposed ISC approach to -ary pulse amplitude modulation and obtains the optimal probability distributions. Then, dimming capacity is used to compare the existing analog dimming approach, the extended ISC app... View full abstract»

• ### Optimal Design of Dispersion Filter for Time-Domain Split-Step Simulation of Pulse Propagation in Optical Fiber

Publication Year: 2012, Page(s):1405 - 1421
Cited by:  Papers (1)
| | PDF (1468 KB) | HTML

The nonlinear Schrödinger equation can be solved by split-step methods, where in each step, linear dispersion and nonlinear effects are treated separately. This paper considers the optimal design of an FIR filter as the time-domain implementation for the linear part. The objective is to minimize the integral of the squared error between the FIR frequency response and the desired dispersion... View full abstract»

• ### Birefringence of Hybrid PCF and Its Sensitivity to Strain and Temperature

Publication Year: 2012, Page(s):1422 - 1432
Cited by:  Papers (12)
| | PDF (1363 KB) | HTML

The modal and group birefringence of a hybrid photonic crystal fiber (hybrid PCF) and the sensitivities of modal birefringence of hybrid PCF to strain and temperature are investigated. The hybrid PCF composes of air-holes and Ge-doped silica rods surrounding a silica core region and light is confined to the core by hybrid index-guiding and photonic bandgap effects. A theoretical model was establis... View full abstract»

• ### Optical Channel Waveguide in KTiOAsO $_{4}$ Crystals Produced by O$^{+}$ion Implantation

Publication Year: 2012, Page(s):1433 - 1436
| | PDF (356 KB) | HTML

We report on the fabrication and characterization of optical channel waveguide in x-cut KTiOAsO4 crystal produced by photographic masking and following direct O ion implantation at energy of 3.0 MeV and fluence of 5 × 1013 ions/cm2. Positive changes of both and refractive indices (corresponding TM and TE polarized light respectively) in the waveguide region ... View full abstract»

• ### Holographic Offset Launch for Dynamic Optimization and Characterization of Multimode Fiber Bandwidth

Publication Year: 2012, Page(s):1437 - 1443
Cited by:  Papers (5)
| | PDF (1350 KB) | HTML

Optimization of the bandwidth of a 2 km 50 μm multimode fiber at 850 nm is investigated theoretically and experimentally by steering a single spot, or two in antiphase spots across the core of the fiber in two dimensions using a ferroelectric liquid-crystal-based spatial light modulator. This method not only allows an optimal offset launch position to be chosen in situ but can also characte... View full abstract»

• ### GigaWaM—Next-Generation WDM-PON Enabling Gigabit Per-User Data Bandwidth

Publication Year: 2012, Page(s):1444 - 1454
Cited by:  Papers (17)
| | PDF (748 KB) | HTML

The “Gigabit access passive optical network using wavelength division multiplexing” project aims to implement 64-Gb/s data transmission over 20-km single-mode fiber. Per-user symmetric data rates of 1-Gb/s will be achieved using wavelength division multiplexing passive optical network (WDM-PON) architecture with a 1:64 user split per PON segment. Enabling technologies being developed... View full abstract»

• ### Spectroscopy, Modeling, and Performance of Erbium-Doped Ta$_{2}$O$_{5}$ Waveguide Amplifiers

Publication Year: 2012, Page(s):1455 - 1462
Cited by:  Papers (8)
| | PDF (1309 KB) | HTML

The design, fabrication, spectroscopic characterization, and performance of an Er:Ta2O5 rib waveguide amplifier is described. Rib waveguides with low loss (<; 0.65 dB/cm at 1600 nm) were obtained. Their absorption spectrum was measured and McCumber theory was employed to obtain the emission spectrum, leading to the absorption and emission cross sections. Numerical modeling... View full abstract»

• ### Sensitivity enhancement of RI sensor based on SMS fiber structure with high refractive index overlay

Publication Year: 2012, Page(s):1463 - 1469
Cited by:  Papers (21)
| | PDF (1191 KB) | HTML

We propose a novel way to enhance the sensitivity of single-mode-multimode-single-mode (SMS) fiber structure in the measurement of surrounding refractive index (RI), which is realized by depositing the multimode fiber section with a high RI overlay. First, as an essential basis of the analysis of the novel structure, characteristics of mode reorganizations in the deposited multimode fiber are disc... View full abstract»

• ### Confinement Loss in Kagome and Tube Lattice Fibers: Comparison and Analysis

Publication Year: 2012, Page(s):1470 - 1474
Cited by:  Papers (11)
| | PDF (986 KB) | HTML

In this paper, a thorough numerical analysis of the confinement loss in kagome and tube lattice fibers is presented. The results show that the confinement loss strongly depends on the shape of the struts composing the core boundary and the cladding. This explains why confinement loss in kagome fibers is much higher than in tube lattice ones. In fact, the closer to a perfectly circular arc the stru... View full abstract»

• ### Bit Error Ratio Performance of 112 Gb/s PM-QPSK Transmission Systems

Publication Year: 2012, Page(s):1475 - 1479
Cited by:  Papers (4)
| | PDF (860 KB) | HTML

For 112 Gb/s polarization-multiplexed quadrature-phase-shift-keying systems, the generalized Gaussian probability density function is used to quantify the impact of carrier phase estimation algorithms on the statistical properties of the resultant signal sample values and to obtain an estimate of the system bit error ratio when direct bit error counting is not feasible. The shape parameter in the ... View full abstract»

• ### The Information Rate Transferred Through the Discrete-Time Wiener's Phase Noise Channel

Publication Year: 2012, Page(s):1480 - 1486
Cited by:  Papers (33)
| | PDF (1138 KB) | HTML

The information rate transferred through the Additive White Gaussian Noise (AWGN) channel affected by discrete-time multiplicative Wiener's phase noise is computed in the paper. Upper and lower bounds based on quantization of the phase space and trellis representation of phase noise memory are proposed. The results presented in the paper show that both the upper bound and the lower bound converge ... View full abstract»

• ### Four-Core Optical Fiber Micro-Hand

Publication Year: 2012, Page(s):1487 - 1491
Cited by:  Papers (5)
| | PDF (723 KB) | HTML

A four-core single fiber optical micro-hand is proposed and fabricated by the fiber etched method. The optical power incident and control were realized by splice and tapered a normal single mode single core fiber with the four-core fiber. By bending the coupling zone between the single core fiber and the four-core fiber, one can get a rotation toque working on a micro-particle, and can realize the... View full abstract»

• ### Multi-Wavelength Transmission of Hollow-Core Bragg Fiber With Modified Binary One-Dimensional Photonic Crystal Cladding

Publication Year: 2012, Page(s):1492 - 1498
Cited by:  Papers (4)
| | PDF (2270 KB) | HTML

To realize midinfrared multi-wavelength transmission within one octave, the modified binary one dimensional photonic crystal (MB-1DPC) is introduced to the hollow core Bragg fiber (HC-BF) as its cladding in this paper. Theoretical analysis shows that the MB-1DPC could provide wider higher-order PBGs than the B-1DPC; hence, the HC-BF with MB-1DPC cladding is prefer to realize multi-wavelength trans... View full abstract»

• ### Distributed Mode Coupling Measurement Along Tapered Single-Mode Fibers With Optical Frequency-Domain Reflectometry

Publication Year: 2012, Page(s):1499 - 1508
Cited by:  Papers (5)
| | PDF (3414 KB) | HTML

We present the measurement of distributed mode coupling along tapered single-mode fibers using optical frequency-domain reflectometry. The energy re-distribution through Rayleigh backscatter amplitude as a function of distance with a 13 μm resolution over the whole taper region is measured. The wavelength shifts between the fundamental mode and high order modes of the taper are theoreticall... View full abstract»

• ### Optimizing Backup Optical-Network-Units Selection and Backup Fibers Deployment in Survivable Hybrid Wireless-Optical Broadband Access Networks

Publication Year: 2012, Page(s):1509 - 1523
Cited by:  Papers (34)
| | PDF (3120 KB) | HTML

Survivability is one of the key issues in hybrid wireless-optical broadband access networks (WOBAN) since the single segment failure can cause huge data loss. The single segment failure refers to a scenario where all optical-network-units (ONUs) are disconnected with the optical line terminal (OLT). Previous schemes focus on protecting WOBAN against single segment failure by deploying backup fiber... View full abstract»

• ### Modeling of the Impact of Nonlinear Propagation Effects in Uncompensated Optical Coherent Transmission Links

Publication Year: 2012, Page(s):1524 - 1539
Cited by:  Papers (138)
| | PDF (1310 KB) | HTML

We address perturbative models for the impact of nonlinear propagation in uncompensated links. We concentrate on a recently-proposed model which splits up the signal into spectral components and then resorts to a four-wave-mixing-like approach to assess the generation of nonlinear interference due to the beating of the signal spectral components. We put its founding assumptions on firmer ground an... View full abstract»

• ### High Capacity/Spectral Efficiency 101.7-Tb/s WDM Transmission Using PDM-128QAM-OFDM Over 165-km SSMF Within C- and L-Bands

Publication Year: 2012, Page(s):1540 - 1548
Cited by:  Papers (44)  |  Patents (1)
| | PDF (1316 KB) | HTML

We experimentally demonstrate 101.7-Tb/s transmission over 355 km spans of standard single-mode fiber (SSMF) at a net spectral efficiency of 11 b/s/Hz. A total of 370 dense wavelength-division multiplexed (DWDM) channels spanning the optical C- and L-bands spaced at 25 GHz were used. Each 25-GHz channel were subdivided into four subbands, with each subband carrying a 73.5-Gb/s orthogonal frequency... View full abstract»

• ### Study of a Diversity O-CDMA Scheme for Optical Wireless

Publication Year: 2012, Page(s):1549 - 1558
Cited by:  Papers (10)
| | PDF (1737 KB) | HTML

Borrowing from wireless communications, a “diversity” optical code-division multiple-access (O-CDMA) scheme for optical wireless is studied in this paper. The scheme transmits multiple copies of an optical code per data bit of one for improving code performance and spectral efficiency. An approximate performance-analytical model is also formulated for quick computation and comparison... View full abstract»

• ### Blank page

Publication Year: 2012, Page(s):1559 - 1560
| PDF (6 KB)

## 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