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# Journal of Lightwave Technology

### Early Access Articles

Early Access articles are made available in advance of the final electronic or print versions. Early Access articles are peer reviewed but may not be fully edited. They are fully citable from the moment they appear in IEEE Xplore.

## Filter Results

Displaying Results 26 - 50 of 84
• ### Fully frequency-locked multiheterodyne architecture for remote optical frequency comb rapid detection

Publication Year: 2017, Page(s): 1
| | PDF (1289 KB)

In this paper, a new approach to optical frequency comb (OFC) detection based on a multiheterodyne arrangement is presented. The architecture relies on optical injection locking as a mechanism to induce coherence between an incoming remote OFC and a local oscillator comb with slightly different repetition frequency to retrieve the information encoded in the former. An additional RF locking techniq... View full abstract»

• ### Performance of 1.73 μm superluminescent source based on bismuth-doped fiber under various temperature conditions and γ-irradiation

Publication Year: 2017, Page(s): 1
| | PDF (630 KB)

Performance characteristics of superluminescent fiber source (SFS) operating at 1.73 μm under different temperature conditions and gamma-irradiation of active fiber were studied. The SFS in a single-pass and backward pumping configuration was constructed using a bismuth-doped high-germania silicate fiber. The output parameters of the SFS including output power, spectral shape, mean waveleng... View full abstract»

• ### Optical Amplification for BTDM-SFSW based Time Transfer

Publication Year: 2017, Page(s): 1
| | PDF (478 KB)

Optical amplification, which is necessary for extending the distance of fiber-optic time transfer, has significant impacts on the time transfer performance. In this paper, we investigate and optimize the optical amplification for the time transfer based on bidirectional time division multiplexing transmission over a single fiber with the same wavelength (BTDM-SFSW). Three optical amplification sch... View full abstract»

• ### Control of Widely-Tunable Lasers with High-Q Resonator as an Integral Part of the Cavity

Publication Year: 2017, Page(s): 1
| | PDF (1420 KB)

We have designed and fabricated widely-tunable semiconductor laser with a high-Q resonator as an integral part of the laser cavity. Wide tuning is realized by utilizing the Vernier effect of two rings with slightly different circumferences. A third ring with considerably larger circumference and consequently higher Q is introduced inside the laser cavity. We study the control of such a laser and s... View full abstract»

• ### Palladium Based Hydrogen Sensors Using Fiber Bragg Gratings

Publication Year: 2017, Page(s): 1
| | PDF (993 KB)

This paper reports on the development and evaluation of fiber optic hydrogen sensors based on fiber Bragg gratings. The sensors were tested in a newly developed measurement system for long term experiments of fiber optic gas sensors. Two types of palladium metal sensors were manufactured; sputter coated and a new concept using palladium foil. The sputter coated sensor has a 1600 nm palladium coati... View full abstract»

• ### Optical Heterodyne Micro-vibration Detection based on All-fiber Acousto-optic Superlattice Modulation

Publication Year: 2017, Page(s): 1
| | PDF (705 KB)

We propose a configuration of optical heterodyne micro-vibration detection based on an all-fiber acousto-optic superlattic modulation structure that acts as both frequency shifter and reflector, simultaneously. The vibration information within the frequency range between 1 Hz to 150 kHz of a piezoelectric mirror (PZM) has been experimentally measured by using this all-fiber optical heterodyne dete... View full abstract»

• ### Cost Effective Laser Structuration of Optical Waveguides on Thin Glass Interposer

Publication Year: 2017, Page(s): 1
| | PDF (695 KB)

In order to enhance electro-optical system-in-package capabilities for silicon photonics, a cost effective fabrication process for optical waveguides integration on thin glass substrate interposer is demonstrated. Firstly, a femtosecond laser ablation coupled with a hydrofluoric acid etching is developed to create micro grooves at the glass surface. Secondly, a dry film lamination followed by chem... View full abstract»

• ### Mixed Channel Traffic Grooming for IP over EON with SBPP-based Cross-Layer Protection

Publication Year: 2017, Page(s): 1
| | PDF (1297 KB)

This paper considers mixed channel traffic grooming in a shared backup path protected IP over elastic optical network (EON). We develop an auxiliary graph-based heuristic algorithm which allows the working and protection IP traffic flows to share common optical channels. We also compare integrated protection which allows cross-layer protection capacity sharing with non-integrated protection (i.e.,... View full abstract»

• ### Accurate and fast demodulation algorithm for multi-peak FBG reflection spectra using a combination of cross correlation and Hilbert transformation

Publication Year: 2017, Page(s): 1
| | PDF (1423 KB)

We demonstrate a combined cross correlation- and Hilbert transform-based demodulation algorithm for tracking the wavelength shifts of fibre Bragg gratings having a multiple peak reflection spectrum. We show how the Hilbert transform can be employed to convert the task of locating the maximum of the wavelength profile to one of finding the zero crossing. We observed higher accuracy and fast respons... View full abstract»

• ### Low-Complexity Soft-Decision Concatenated LDGM-Staircase FEC for High Bit-Rate Fiber-Optic Communication

Publication Year: 2017, Page(s): 1
| | PDF (427 KB)

A concatenated soft-decision FEC scheme consisting of an inner LDGM code and an outer staircase code is proposed. The soft-decision LDGM code is used for error reduction while the majority of bit errors are corrected by the low complexity hard-decision staircase code. Decoding complexity of the concatenated code is quantified by a score based on the number of edges in the LDGM code Tanner graph, t... View full abstract»

• ### Power Division Non-Orthogonal Multiple Access (NOMA) in Flexible Optical Access with Synchronized Downlink / Asynchronous Uplink

Publication Year: 2017, Page(s): 1
| | PDF (680 KB)

The data traffic in optical access networks increase dramatically, driven by wired and wireless services. Limited by the available bandwidth with low-cost optical and electrical devices, modulations and multiple access schemes with higher spectral efficiency is desirable. The current time division multiplexing and wavelength division multiplexing cannot fulfill the requirement due to low spectral ... View full abstract»

• ### Tomlinson-Harashima Precoding for Dispersion Uncompensated PAM-4 Transmission with Direct-Detection

Publication Year: 2017, Page(s): 1
| | PDF (556 KB)

Combating the destructive effects of power-fading in fiber-optic systems using direct-detection is the key for increasing the transmission rates and/or reach. Some of the solutions used in the past include additional components, e.g. a dispersion compensating fiber or an IQ-modulator, which increase the costs of the entire system. Another solution, the compensation of the channel distortions using... View full abstract»

• ### 15 × 200 Gbit/s 16-QAM SDM Transmission over an Integrated 7-Core Cladding-Pumped Repeatered Multicore Link in a Recirculating Loop

Publication Year: 2017, Page(s): 1
| | PDF (488 KB)

We investigate a complete realistic integrated multicore system consisting of directly spliced components: homogeneous trench-assisted 7-core fiber with a length of 60 km, cladding-pumped 7-core amplifiers, integrated 7-core isolators, and fiberized fan-in/fan-out couplers. We analyze the performance of an in-line repeatered multicore transmission system in a recirculating loop by transmitting a 2... View full abstract»

• ### Passively Q-switched Nd:YVO$_{4}$ laser using WS$_{2}$ saturable absorber fabricated by radio frequency magnetron sputtering deposition

Publication Year: 2017, Page(s): 1
| | PDF (774 KB)

WS$_{2}$ layered material offers great potential for the development of next generation laser photonic devices due to its strong layer absorption compared with graphene. The passively Q-switched Nd:YVO$_{4}$ laser operating at 1064 nm was first demonstrated by using layered tungsten disulfide WS$_{2}$ saturab... View full abstract»

• ### Multiple particles 3D trap based on all-fiber Bessel optical probe

Publication Year: 2017, Page(s): 1
| | PDF (1243 KB)

We propose and demonstrate an all-fiber Bessel optical tweezers for multiple microparticles (yeast cells) 3 dimensional trap. To the best knowledge of us, it is the first time to achieve the 3 dimensional stable non-contact multiple microparticles optical traps with long distance intervals by using a single all-fiber probe. The Bessel beam is produced by splicing coaxially a single mode fiber and ... View full abstract»

• ### A Model for Designing Ultra-low Noise Single and Dual-Loop 10 GHz Optoelectronic Oscillators

Publication Year: 2017, Page(s): 1
| | PDF (718 KB)

A complete model describing both single- and dualloop optoelectronic oscillators (OEO) is introduced. It is compared to several experimental configurations, with excellent agreement in all cases. The physical insight into noise coupling mechanisms brought by the model further allows for the design of ultralow noise OEO. Phase noise performances at 10 GHz with a single 1 km delay line and with a du... View full abstract»

• ### Oxyfluoride core silica-based optical fiber with intrinsically low nonlinearities for high energy laser applications

Publication Year: 2017, Page(s): 1
| | PDF (710 KB)

A few-moded silica-based optical fiber fabricated from core materials that possess intrinsically low optical nonlinearities is reported. Specifically, the 8 μm core, 125 μm cladding diameter silicate fiber was composed of a strontium aluminosilicate oxyfluoride core with a fused silica cladding and was fabricated using the molten core method. Relative to conventional optical fibers, ... View full abstract»

• ### 1.5 μm low threshold, high efficiency random fiber laser with hybrid Erbium-Raman gain

Publication Year: 2017, Page(s): 1
| | PDF (966 KB)

In this paper, we proposed a novel approach to realize low-threshold, high-efficiency 1.5 μm random fiber laser by taking advantage of hybrid Erbium-Raman gain. The numerical model is established to optimize the proposed Erbium-Raman random fiber laser, revealing the route to generate high-efficiency random lasing. The experiment is conducted to verify the concept, in which the threshold of... View full abstract»

• ### Sensitivity Prediction of Multiturn Fiber Coil-based Fiber-optic Flexural Disk Seismometer via Finite Element Method Analysis

Publication Year: 2017, Page(s): 1
| | PDF (1027 KB)

This paper presents a method for predicting strain and sensitivity of a fiber-optic flexural disk seismometer (FODS) based on multiturn fiber coils (MTFC) via finite element method (FEM) analysis. FEM can be used to evaluate sensitivity by taking into account the strain distribution in MTFC. A sample MTFC-based FODS was fabricated according to simulation parameters; the experimental results of str... View full abstract»

• ### Nonlinear Mitigation of a 400G Frequency-Hybrid Superchannel for the 62.5 GHz Slot

Publication Year: 2017, Page(s): 1
| | PDF (1158 KB)

We propose a 400G frequency-hybrid superchannel solution based on three carriers, two edge PM-16QAM and a central PM-64QAM carrier, compatible with the 62.5 GHz grid slot (spectral efficiency of 6.4 b/s/Hz). The proposed superchannel is experimentally assessed in long-haul transmission by co-propagation with other 8 similar superchannels. The optimum power-ratio between superchannel carriers is an... View full abstract»

• ### Silicon-Based Single-Mode On-Chip Ultra-Compact Microdisk Resonators With Standard Silicon Photonics Foundry Process

Publication Year: 2017, Page(s): 1
| | PDF (526 KB)

A silicon-based on-chip ultra-compact microdisk resonator (MDR) with a super-high Q-factor to support single-mode operation is designed, fabricated and tested. In our design, a compact MDR has an ultra-small radius of 3.7 μm with an additional slab waveguide incorporated to wrap the disk and the bus waveguide with an aim to weaken the disk sidewall roughness, to increase the confinement of ... View full abstract»

• ### A Multi-Gigabit/sec Integrated Multiple Input Multiple Output VLC Demonstrator

Publication Year: 2017, Page(s): 1
| | PDF (523 KB)

In this paper, we report the performance of an imaging multiple input multiple output (MIMO) visible light communication (VLC) system. The VLC transmitter consists of a two-dimensional, individually addressable Gallium Nitride micro light emitting diode (μLED) array. The receiver uses a two-dimensional avalanche photodiode (APD) array fabricated using complementary metal oxide semiconductor... View full abstract»

• ### Brillouin Optical Time Domain Analyzer Assisted by Support Vector Machine for Ultrafast Temperature Extraction

Publication Year: 2017, Page(s): 1
| | PDF (987 KB)

Brillouin optical time domain analyzer (BOTDA) assisted by Support Vector Machine (SVM) for ultrafast temperature extraction is proposed and experimentally demonstrated. The temperature extraction is treated as a supervised classification problem and the BGSs are classified into each temperature class according to the support vectors and hyperplane of the SVM model after training. Ideal pseudo-Voi... View full abstract»

• ### Nonlinear Compensation Assessment in Few-mode Fibers via Phase-Conjugated Twin Waves

Publication Year: 2017, Page(s): 1
| | PDF (16638 KB)

In this paper we further explore the concept of phase-conjugated twin waves (PCTW) for nonlinear cancellation in space-division multiplexed (SDM) systems. Previously, we demonstrated that the PCTW technique can successfully provide nonlinear cancellation in SDM systems. In this paper, we investigate the cases where two and four spatial modes are copropagating in a multimode fiber, considering thre... View full abstract»

• ### Virtual Network Embedding for Collaborative Edge Computing in Optical-Wireless Networks

Publication Year: 2017, Page(s): 1
| | PDF (508 KB)

As an open integrated environment deployed with wired and wireless infrastructures, the smart city heavily relies on the Wireless-Optical Broadband Access Network (WOBAN). Smart home data are usually sent to neighbor Optical Network Units (ONUs) through front-end Wireless Mesh Networks (WMNs) and finally reach the Optical Line Terminal (OLT) for decision making via the Passive Optical Network (PON... 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