| 1. |
- Arnold, C. L., et al.
(author)
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Energy scaling of gas nonlinear optics
- 2017
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In: 30th Annual Conference of the IEEE Photonics Society, IPC 2017. - 9781509065783 ; 2017-January, s. 503-504
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Conference paper (peer-reviewed)abstract
- Nonlinear light-matter interactions, such as filamentation or high-order harmonic generation, are at the heart of nonlinear optics. Scaling of such effects is crucial to benefit optimally from novel laser developments. We introduce and discuss a general scaling model for nonlinear light-matter interactions in gases.
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| 2. |
- Cristofori, Valentina, et al.
(author)
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25-Gb/s transmission over 2.5-km SSMF by silicon MRR enhanced 1.55-μm III-V/SOI DML
- 2017
-
In: 30th Annual Conference of the IEEE Photonics Society, IPC 2017. - : Institute of Electrical and Electronics Engineers Inc.. - 9781509065783 ; , s. 357-360
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Conference paper (peer-reviewed)abstract
- The use of a micro-ring resonator (MRR) to enhance the modulation extinction ratio and dispersion tolerance of a directly modulated laser (DML) is experimentally investigated with a bit rate of 25 Gb/s as proposed for the next generation data center communications. The investigated system combines a 11-GHz 1.55-m directly modulated hybrid III-V/SOI DFB laser realized by bonding III-V materials (InGaAlAs) on a silicon-on-insulator (SOI) wafer and a silicon MRR also fabricated on SOI. Such a transmitter enables error-free transmission (BER< 10 -9 )at 25 Gb/s data rate over 2.5-km SSMF without dispersion compensation nor forward error correction (FEC). As both laser and MRR are fabricated on the SOI platform, they could be combined into a single device with enhanced performance, thus providing a cost-effective transmitter for short reach applications.
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| 3. |
- Gustavsson, Johan, 1974, et al.
(author)
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Silicon-Integrated Hybrid-Vertical-Cavity Lasers for Life Science Applications
- 2017
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In: 2017 IEEE Photonics Conference. - 9781509065783 ; 2017-January
-
Conference paper (peer-reviewed)abstract
- Hybrid 850-nm-wavelength vertical-cavity lasers formed by adhesively bonding AlGaAs-material to a dielectric distributed Bragg reflector on Silicon has experimentally enabled sub-mA threshold current and 25 Gb/s modulation speed. Numerical calculations estimate >0.3 mW/mA slope efficiency for in-plane SiN waveguide coupled light using an intra-cavity grating.
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| 4. |
- Jiang, Tao, et al.
(author)
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Precoded-DC-Biased Optical OFDM system for Visible light communications
- 2017
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In: 30th Annual Conference of the IEEE Photonics Society (IPC). - : Institute of Electrical and Electronics Engineers (IEEE). - 9781509065783 ; , s. 549-550
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Conference paper (peer-reviewed)abstract
- Traditional OFDM techniques in VLC suffer from high PAPR and serious clipping distortion. In this paper, we propose a Precoded-DC-Biased Optical OFDM technique for VLC system. Numerical simulations are presented, proving substantial benefits in terms of PAPR and BER.
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| 5. |
- Larsson, Anders, 1957, et al.
(author)
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High-Speed VCSELs for OOK and Multilevel PAM Modulation
- 2017
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In: 30TH ANNUAL CONFERENCE OF THE IEEE PHOTONICS SOCIETY (IPC). - 2374-0140. - 9781509065783 ; 2017-January, s. 355-356
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Conference paper (peer-reviewed)abstract
- The short-reach optical interconnects used in datacenters and high-performance computing systems are dominated by vertical-cavity surface-emitting laser (VCSEL) and multimode fiber (MMF) links1. The VCSEL-MMF technology is the most cost and power efficient and offers the smallest footprint. VCSELs for 25-28 Gbit/s OOK lanes are in production2 while 25-28 Gbaud PAM-4 with forward-error-correction (FEC) is considered for next generation 50-56 Gbit/s lanes3. For this transition, as well as future developments towards even higher speed, the VCSEL dynamics and high-speed properties are of utmost importance. Improved dynamics may enable 50-56 Gbit/s PAM-4 without FEC and even 50-56 Gbit/s OOK, which would reduce complexity, power consumption, and latency.
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