Optimization of VCSEL spatiotemporal operation in MMF links for 10-gb ethernet

Toffano, Zeno; Destrez, A.; Pellevrault, S.; Pez, M.; Quentel, F.

doi:10.1109/jstqe.2006.876330

Cited by 13 publications

(8 citation statements)

References 16 publications

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“…It thus becomes a limitation in our BER values (floor). There are several possible ways to further improve the BER performance, such as more robust device packaging, selection of the optical mode for excitations [24], and integration of the optical isolator with laser [23]. Fig.…”

Section: Measurement Results Of the Single-mode Devicementioning

confidence: 99%

Single-Mode, High-Speed, and High-Power Vertical-Cavity Surface-Emitting Lasers at 850 nm for Short to Medium Reach (2 km) Optical Interconnects

Shi

Wei

Chi

et al. 2013

J. Lightwave Technol.

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The vertical-cavity surface-emitting lasers (VCSELs) with high single-mode (narrow linewidth) output power are essential to minimize chromatic dispersion and to further improve the bit-rate distance product in a multimode fiber, which has a significant propagation loss (∼3.5 dB/km) at 850 nm wavelength. Here, we demonstrate the detailed design considerations and fabrication of a single-mode, high-power, and high-speed VCSELs at the 850 nm wavelength with oxide-relief and Zn-diffusion apertures for the application of short (0.3 km) to medium reach (2 km) optical interconnects. By optimizing the relative geometric sizes between two such apertures in our demonstrated 850-nm VCSELs, we can not only attain high single-mode output power (∼6.5 mW), but also with a reasonable threshold current (< 2.0 mA). Furthermore, the spatial hole burning effect induced low-frequency roll off can also be minimized in our optimized structure to obtain a maximum data rate up to 26 Gbit/s. The record-high bit rate-distance products for OM4 MMF transmission under ON-OFF keying (14 Gbit/s × 2.0 km) modulation formats have been successfully demonstrated by the use of our VCSEL.

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Section: Measurement Results Of the Single-mode Devicementioning

confidence: 99%

Single-Mode, High-Speed, and High-Power Vertical-Cavity Surface-Emitting Lasers at 850 nm for Short to Medium Reach (2 km) Optical Interconnects

Shi

Wei

Chi

et al. 2013

J. Lightwave Technol.

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“…Although the current VCSEL models [4][5][6][7][8][9][10][11] are different in form with each other, they are the same in essence. In these VCSEL models, VISTAS [4,16] is a popular VCSEL model based on rate equations which includes the effects of mode competition, carrier diffusion losses and relative intensity noise.…”

Section: Resultsmentioning

confidence: 99%

“…There are two categories of VCSEL models. One is built on the Maxwell's equations [3], and the other is based on the rate equations [4][5][6][7][8][9][10][11]. The former can accurately analyze the device characteristics of VCSEL.…”

Section: Introductionmentioning

confidence: 99%

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A new method for extending rate equation based VCSEL model with multimode spectral characteristic

Liang

Yang

Zhang

et al. 2018

Sci. China Inf. Sci.

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An accurate VCSEL model is important to evaluate the performance of VCSEL-based high speed short range optical interconnect system. Current VCSEL models show no evidence of the multimode spectral characteristic, which leads to an inaccurate performance estimation of VCSEL-based high speed optical interconnect system especially with large chromatic dispersion. To overcome this problem, we propose a new method to introduce multimode spectral characteristic into current VCSEL models, which extends the spatiotemporal multimode rate equations by calculating the wavelength shift of the VCSEL transverse modes. A VCSEL-multimode fiber (MMF) based short range optical interconnect simulation system is then built using our modified VCSEL model by VPItransmissionMaker. The symbol broadening and the BER performance of 15 Gb/s NRZ signal are tested in both left-tilted differential mode delay (DMD) profile MMF (L-MMF) and right-tilted DMD profile MMF (R-MMF). Simulation results validate our proposed method and indicate that the spectral characteristic is a key component for VCSEL models.

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“…Unlike the continuous laser used in this work, the output modal distribution of a pulsed VCSEL changes during the period of the pulse and this will change the distribution of modes launched into the fiber [39]. However, as shown in [39], the VCSEL modal output is almost constant for 90% of the pulse duration, and only changes during turn-on and turn-off. This indicates that the methods described in this paper will also be applicable to pulsed VCSELs.…”

Section: Discussionmentioning

confidence: 95%

Holographic mode-selective launch for bandwidth enhancement in multimode fiber

Amphawan¹

2011

Opt. Express

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With rapidly growing bandwidth demands in Local Area Networks, it is imperative to support next generation speeds beyond 40 Gbit/s. Various holographic optimization techniques using spatial light modulators have recently been explored for adaptive channel impulse response improvement of MMF links. Most of these experiments are algorithmic-oriented. In this paper, a set of lenses and a spatial light modulator, acting as a binary amplitude filter, played the pivotal role in generating the input modal electric field into a graded-index MMF, rather than algorithms. By using a priori theoretical information to generate the incident modal electric field at the MMF, the bandwidth was increased by up to 3.4 times.

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Optimization of VCSEL spatiotemporal operation in MMF links for 10-gb ethernet

Cited by 13 publications

References 16 publications

Single-Mode, High-Speed, and High-Power Vertical-Cavity Surface-Emitting Lasers at 850 nm for Short to Medium Reach (2 km) Optical Interconnects

Single-Mode, High-Speed, and High-Power Vertical-Cavity Surface-Emitting Lasers at 850 nm for Short to Medium Reach (2 km) Optical Interconnects

A new method for extending rate equation based VCSEL model with multimode spectral characteristic

Holographic mode-selective launch for bandwidth enhancement in multimode fiber

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