Krzysztof Szczerba

Doktor at Microtechnology and Nanoscience, Photonics

Krzysztof Szczerba received his M.Sc. in Telecommunications from the Technical University of Denmark in 2008. In 2008 he worked at the Technical Univeristy of Denmark, Department of Photonics Engineering (DTU Fotonik) as a research assistant. In 2009 he joined the Chalmers University of Technology, Department of Microtechnology and Nanoscience (MC2), Sweden, where he received the Ph.D. degree at the Photonics Laboratory in 2013. His main research interests are short range optical communication and advanced modulation formats.

Source: chalmers.se

Projects

2015–2018

Towards flexible and energi-efficient datacentre networks

Erik Agrell Signals and Systems, Communication Systems
Houman Rastegarfar Signals and Systems, Communication Systems
Krzysztof Szczerba Microtechnology and Nanoscience, Photonics
Swedish Research Council (VR)

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Publications

2016

To overcome the scalability limitation of passive optical interconnects in datacentres

Rui Lin, Krzysztof Szczerba, Erik Agrell et al
Asia Communications and Photonics Conference (ACP)
Conference paper - peer reviewed
2016

Demonstration of a 71.8 Gbps 4-PAM 850 nm VCSEL-based Link with a Pre-emphasizing Passive Filter

Tamás Lengyel, Krzysztof Szczerba, Magnus Karlsson et al
ECOC 2016; 42nd European Conference on Optical Communication; Proceedings of
Conference paper - peer reviewed
2016

Sensitivity Improvements in an 850 nm VCSEL-based Link using a Two-tap Pre-emphasis Electronic Filter

Tamás Lengyel, Krzysztof Szczerba, Petter Westbergh et al
Journal of Lightwave Technology
Scientific journal article - peer reviewed
2016

94-Gb/s 4-PAM Using an 850-nm VCSEL, Pre-Emphasis, and Receiver Equalization

Krzysztof Szczerba, Tamás Lengyel, Magnus Karlsson et al
IEEE Photonics Technology Letters. Vol. 28 (22), p. 2519-2521
Scientific journal article - peer reviewed
2016

Investigation of 60 Gb/s 4-PAM Using an 850 nm VCSEL and Multimode Fiber

J. M. Castro, R. Pimpinella, B. Kose et al
Journal of Lightwave Technology. Vol. 34 (16), p. 3825-3836
Scientific journal article - peer reviewed
2016

An Energy Efficient 56 Gbps PAM-4 VCSEL Transmitter Enabled by a 100 Gbps Driver in 0.25 µm InP DHBT Technology

Jingjing Chen, Zhongxia He, Tamás Lengyel et al
Journal of Lightwave Technology. Vol. 34 (21), p. 954-4964
Scientific journal article - peer reviewed
2015

Sensitivity improvements in an 850 nm VCSEL transmitter using a one-tap pre-emphasis electronic filter

Tamás Lengyel, Krzysztof Szczerba, Petter Westbergh et al
41st European Conference on Optical Communication, ECOC 2015, Valencia, Spain, 27 September - 1 October 2015
Conference paper - peer reviewed
2015

48.7 Gb/s 4-PAM Transmission over 200 m of High Bandwidth MMF using an 850 nm VCSEL

Jose Manuel Castro, Rick Pimpinella, Bulent Kose et al
IEEE Photonics Technology Letters. Vol. 27 (17), p. 1799-1801
Scientific journal article - peer reviewed
2015

50 Gb/s 4-PAM over 200 m of High Bandwidth MMF using a 850 nm VCSEL

Jose Manuel Castro, Rick Pimpinella, Bulent Kose et al
Optical Fiber Communication Conference 2015, Los Angeles, California, United States, 22–26 March 2015
Conference paper - peer reviewed
2015

Impact of Forward Error Correction on Energy Consumption of VCSEL-based Transmitters

Krzysztof Szczerba, Christoffer Fougstedt, Per Larsson-Edefors et al
41st European Conference on Optical Communication, ECOC 2015, Valencia, Spain, 27 September - 1 October 2015
Conference paper - peer reviewed
2015

Energy Efficiency of VCSELs in the Context of Short-Range Optical Links.

Krzysztof Szczerba, Petter Westbergh, Johan S. Gustavsson et al
IEEE Photonics Technology Letters. Vol. 27 (16), p. 1749-1752
Scientific journal article - peer reviewed
2015

70 Gbps 4-PAM and 56 Gbps 8-PAM Using an 850 nm VCSEL

Krzysztof Szczerba, Petter Westbergh, Magnus Karlsson et al
Journal of Lightwave Technology. Vol. 33 (7), p. 1395-1401
Scientific journal article - peer reviewed
2014

70 Gbps 4-PAM and 56 Gbps 8-PAM using an 850 nm VCSEL

Krzysztof Szczerba, Petter Westbergh, Magnus Karlsson et al
2014 European Conference on Optical Communication, ECOC 2014; Cannes; France; 21 September 2014 through 25 September 2014, p. Art. no. 6963923
Conference paper - peer reviewed
2013

35.2 Gbps 8-PAM transmission over 100 m of MMF using an 850 nm VCSEL

Krzysztof Szczerba, Magnus Karlsson, Peter Andrekson et al
Proc. European Conference on Optical Communication (ECOC)
Conference paper - peer reviewed
2013

Comparison of Intersymbol Interference Power Penalties for OOK and 4-PAM in Short-Range Optical Links

Krzysztof Szczerba, Petter Westbergh, Erik Agrell et al
Journal of Lightwave Technology. Vol. 31 (22), p. 3525-3534
Scientific journal article - peer reviewed
2013

Intersymbol interference penalties for OOK and 4-PAM in short-range optical communications

Krzysztof Szczerba, Magnus Karlsson, Peter Andrekson et al
2013 Optical Fiber Communication Conference and Exposition and the National Fiber Optic Engineers Conference, OFC/NFOEC 2013
Conference paper - peer reviewed
2013

Multilevel modulation in short-range optical links

Krzysztof Szczerba,
Doctoral thesis
2013

22 Gb/s error-free data transmission beyond 1 km of multi-mode fiber using 850 nm VCSELs

Rashid Safaisini, Krzysztof Szczerba, Erik Haglund et al
Vertical-Cavity Surface-Emitting Lasers Xvii. Vol. 8639
Conference paper - peer reviewed
2013

High-Speed 850 nm Quasi-Single Mode VCSELs for Extended Reach Optical Interconnects

Rashid Safaisini, Krzysztof Szczerba, Petter Westbergh et al
Journal of Optical Communications and Networking. Vol. 5 (7), p. 686-695
Scientific journal article - peer reviewed
2013

60 Gbits error-free 4-PAM operation with 850 nm VCSEL

Krzysztof Szczerba, Petter Westbergh, Magnus Karlsson et al
Electronics Letters. Vol. 49 (15), p. 953-955
Scientific journal article - peer reviewed
2013

850 nm datacom VCSELs for higher-speed and longer-reach transmission

Erik Haglund, Petter Westbergh, Emanuel P. Haglund et al
European VCSEL Day 2013
Conference paper - peer reviewed
2012

Optimized lattice-based 16-level subcarrier modulation for IM/DD systems

Krzysztof Szczerba, Johnny Karout, Magnus Karlsson et al
2012 38th European Conference and Exhibition on Optical Communications, ECOC 2012; Amsterdam; Netherlands; 16 September 2012 through 20 September 2012, p. Art. no. 6705904
Conference paper - peer reviewed
2012

4-PAM for high-speed short-range optical communications

Krzysztof Szczerba, Petter Westbergh, Johnny Karout et al
Journal of Optical Communications and Networking. Vol. 4 (11), p. 885-894
Scientific journal article - peer reviewed
2012

High speed VCSELs for optical interconnects

Anders Larsson, Johan S. Gustavsson, Åsa Haglund et al
Proc. 24th International Conference on Indium Phosphide and Related Materials
Conference paper - peer reviewed
2012

20 Gbit/s error-free operation of 850 nm oxide-confined VCSELs beyond 1 km of multimode fibre

Rashid Safaisini, Krzysztof Szczerba, Erik Haglund et al
Electronics Letters. Vol. 48 (19), p. 1225-U81
Scientific journal article - peer reviewed
2012

High-speed lasers for optical interconnects

Erik Haglund, Petter Westbergh, Rashid Safaisini et al
Swedish Optics and Photonics Days 2012
Conference poster
2012

Optimizing Constellations for Single-Subcarrier Intensity-Modulated Optical Systems

Johnny Karout, Erik Agrell, Krzysztof Szczerba et al
IEEE Transactions on Information Theory. Vol. 58 (7), p. 4645-4659
Scientific journal article - peer reviewed
2011

Advanced modulation formats for short-range optical communications

Krzysztof Szczerba,
Licentiate thesis
2011

30 Gbps 4-PAM transmission over 200m of MMF using an 850 nm VCSEL

Krzysztof Szczerba, Petter Westbergh, Johnny Karout et al
Optics Express. Vol. 19 (26), p. B203-B208
Scientific journal article - peer reviewed
2011

Designing Power-Efficient Modulation Formats for Noncoherent Optical Systems

Johnny Karout, Erik Agrell, Krzysztof Szczerba et al
54th Annual IEEE Global Telecommunications Conference (GLOBECOM), Houston, TX, DEC 05-09, 2011
Conference paper - peer reviewed
2011

Demonstration of 8-level subcarrier modulation sensitivity improvement in an IM/DD system

Krzysztof Szczerba, Johnny Karout, Erik Agrell et al
European Conference and Exposition on Optical Communications, ECOC 2011; Geneva; Switzerland; 18 September 2011 through 22 September 2011
Conference paper - peer reviewed
2011

30 Gbps 4-PAM transmission over 200m of MMF using an 850 nm VCSEL

Krzysztof Szczerba, Petter Westbergh, Johan S. Gustavsson et al
2011 37th European Conference on Optical Communication (ECOC); 18-22 Sept. 2011; Geneva, p. 1-3
Conference paper - peer reviewed
2011

Experimental comparison of modulation formats in IM/DD links

Krzysztof Szczerba, Johnny Karout, Petter Westbergh et al
Optics Express. Vol. 19 (10), p. 9881-9889
Scientific journal article - peer reviewed
2010

Modulation scheme [Patent application]

Johnny Karout, Krzysztof Szczerba, Erik Agrell et al
Patent application
2010

37 Gbps transmission over 200 m of MMF using single cycle subcarrier modulation and a VCSEL with 20 GHz modulation bandwidth

Krzysztof Szczerba, Bengt-Erik Olsson, Petter Westbergh et al
2010 36th European Conference and Exhibition on Optical Communication (ECOC). Vol. 1-2, p. 1-3
Conference paper - peer reviewed
2010

A novel subcarrier modulation scheme for the optical intensity channel [Patent application]

Johnny Karout, Krzysztof Szczerba, Erik Agrell et al
Patent application
2010

High-speed 850-nm VCSELs for 40 Gb/s transmission

Johan S. Gustavsson, Petter Westbergh, Krzysztof Szczerba et al
Proceedings of SPIE - The International Society for Optical Engineering ; Semiconductor Lasers and Laser Dynamics IV; Brussels; 12 April 2010 through 16 April 2010. Vol. 7720
Conference paper - non peer reviewed