Quad 14 Gbps L-band VCSEL-based system for WDM migration of 4-lanes 56 Gbps optical data links

Estaran, Jose; Rodes, Roberto; Pham, Tuan Minh; Ortsiefer, M.; Neumeyr, Christian; Rosskopf, J.; Monroy, Idelfonso Tafur

doi:10.1364/oe.20.028524

Cited by 6 publications

(3 citation statements)

References 10 publications

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“…The packaging tolerances were found to be <2 dB loss for < +/− 1 μm lateral offset and 0.5 dB loss at 10 μm distance from PLC. The VCSELs use Vertilas buried tunnel junction technology that allows the VCSELs to lase in the L-band at a speeds of 10 Gb/s [9], [10] and up to 15 Gb/s using four level pulse amplitude modulation [11]. Two type of VCSELs were developed in order to cover the entire L band without suffering from mode hopping.…”

Section: Co Hybridmentioning

confidence: 99%

Gigabit Access Passive Optical Network Using Wavelength Division Multiplexing—GigaWaM

Olmedo

Suhr

Prince³

et al. 2014

J. Lightwave Technol.

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This paper summarizes the research and technical achievements done under the EU project GigaWaM. The goal of this project was to develop a cost-effective solution that can meet the increasing bandwidth demands in access networks. The approach was to use a novel wavelength division multiplexing passive optical network (WDM-PON) architecture that can deliver symmetric 1 Gb/s to 64 users over 20 km standard single mode fiber using the L and C bands for down and upstream, respectively. During the course of the project, a number of key enabling technologies were developed including tunable transceivers, athermal 50 GHz spaced arrayed waveguide grating multiplexer devices, novel hybridization technologies for integration of passive and active electro-optic devices, and system-level algorithms that ensure the quality of service. The outcome of the project proved a reliable, cost-effective, flexible, and upgradable WDM-PON solution, achieving per-user datarates of 2.5 and 10 Gb/s for up and downstream, respectively. The proposed solution is not only suitable for access networks, but also for metro aggregation and mobile backhaul.

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Section: Co Hybridmentioning

confidence: 99%

Gigabit Access Passive Optical Network Using Wavelength Division Multiplexing—GigaWaM

Olmedo

Suhr

Prince³

et al. 2014

J. Lightwave Technol.

Self Cite

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“…In addition, several models have been developed in the last decades to describe the RoF links behavior [23], [24]. Due to the similarities between the large signal behavior of both lasers (e.g., VCSEL LIV curves [25], [26]) and power amplifiers (e.g., amplifier transfer function), some models have been developed, based on the existing literature about behavioral modeling of power amplifiers [27]- [35]. In [6], the large signal behavior is modeled by using the Hyperbolic Tangent (tanh) to fit the simulations with the measurements; an approach that was already proposed in the early 1990s.…”

Section: Introductionmentioning

confidence: 99%

Improved Nonlinear Model Implementation for VCSEL Behavioral Modeling in Radio-Over-Fiber Links

Giovannini

Hadi

Prat

et al. 2022

J. Lightwave Technol.

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This paper proposes an improved model for the nonlinear behavior of the components of Radio-over-Fiber (RoF) links focusing here on the laser source. In a previous work, it was shown with a flexible new opto-microwave design approach a first behavioral model of RoF links that exploited the hyperbolic tangent function (the so-called tanh model) to model the high-power nonlinearities. Since this was not sufficient to simulate adequately all the nonlinearities, in this work, for the first time in the authors' knowledge, the improved nonlinear model based on Cann's model is developed, on an electro optic transducer. Then the amplitudeto-amplitude conversion of the link is better taken into account with the introducing of nonlinear properties of the link at high input power in the model. The new transfer equation includes several parameters that can be adjusted to adapt the model to any of the components, especially the photo-emitters under study, which are the main cause of this type of nonlinear behavior of the system. In particular, this improved model is applied on the state-of-the-art 850 nm GaAs Vertical Cavity Surface Emitting Laser (VCSEL), simulating several Figures of Merit such as the Error-Vector Magnitude (EVM) of a Long Term Evolution (LTE) signal with a Quadrature Phase Shift Keying (QPSK)and the output amplitude-modulated power versus input amplitude-modulated power, also called AM/AM curve. This new proposed nonlinear model outperforms other existing behavioral models and its non linear simulation better fits with the measurements. Finally, we Manuscript

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“…In recent years, the flexible spectrum network has received great attention as it efficiently utilizes the available spectrum in an optical fibre compared to the fixed grid systems. One of the advantages of the flexible spectrum network is that the optical spectrum is divided into finer granular frequency slots of 12.5 GHz whose full width can be dynamically adjusted to create arbitrary densely packed sub-and superchannels offering a tunable bit rate from 10 to 100 Gb/s and beyond [5][6][7]. is is a technique used in the industry to overcome the theoretical maximum transmission rate of a channel for a particular noise level (Shannon limit) [8].…”

Section: Introductionmentioning

confidence: 99%

All-Optical VCSEL-to-VCSEL Injection Based on Cross Gain Modulation for Routing in Multinode Flexible Spectrum Optimization in Optical Fibre Transmission Links

Dlamini

Isoe

Boiyo

et al. 2019

International Journal of Optics

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In this paper, we experimentally present a novel, all-optical spectral efficient vertical-cavity surface-emitting laser- (VCSEL-) based technique for routing and spectrum assignment in optical networks. Exploiting all optical VCSEL-to-VCSEL injection to attain cross gain modulation, the optical transmitter is optimized for optical transmission paths to assure quality of service by overcoming blockage for differentiated bandwidth demands during network congestion incidences. A 10 Gbps directly modulated 1549 nm master VCSEL is optically injected into the 1549 nm side modes of a 1550 nm slave VCSEL. The Shannon limit is considered for higher transmission rates with the problem decomposed into degraded routing and spectrum assignment and chromatic dispersion in the optical transmission link penalties. In this work, the proposed technique achieved a 1.3 dB penalty for transmission over a 25 km G.655 nonzero dispersion-shifted single-mode optical fibre, a value within the transmission media and optical system characteristics of 3 dB as recommended by the International Telecommunication Union-Telecommunication (ITU-T). The number of transceivers, switches, and optical transmission links in the network was reduced, increasing the number of satisfied bandwidth requests, thus optimizing the spectral resource utilization.

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Quad 14 Gbps L-band VCSEL-based system for WDM migration of 4-lanes 56 Gbps optical data links

Cited by 6 publications

References 10 publications

Gigabit Access Passive Optical Network Using Wavelength Division Multiplexing—GigaWaM

Gigabit Access Passive Optical Network Using Wavelength Division Multiplexing—GigaWaM

Improved Nonlinear Model Implementation for VCSEL Behavioral Modeling in Radio-Over-Fiber Links

All-Optical VCSEL-to-VCSEL Injection Based on Cross Gain Modulation for Routing in Multinode Flexible Spectrum Optimization in Optical Fibre Transmission Links

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