Julijan Cesar

Julijan Cesar, M.Sc.

+49 6151 16-28437
+49 6151 16-28431

Merckstr. 25
64283 Darmstadt

Raum: S3|06 514

Forschungsschwerpunkte:

  • SiC-MEMS Technologie
  • Elektrothermische und Elektrostatische MEMS Abstimmung
  • Abstimmbare MEMS-Filter, Photodioden und VCSEL

Publikationen

Gruppiere nach: Datum | Typ des Eintrags | Keine Gruppierung
Springe zu: 2018 | 2017 | 2016 | 2015
Anzahl der Einträge: 19.

2018

Haidar, M. T. ; Preu, S. ; Cesar, J. ; Paul, S. ; Hajo, A. S. ; Neumeyr, C. ; Maune, H. ; Küppers, F. :
Systematic characterization of a 1550 nm microelectromechanical (MEMS)-tunable vertical-cavity surface-emitting laser (VCSEL) with 7.92 THz tuning range for terahertz photomixing systems.
[Online-Edition: https://doi.org/10.1063/1.5003147]
In: Journal of Applied Physics, 123 (2) 023106.
[Artikel], (2018)

2017

Wagner, C. ; Dochhan, A. ; Eiselt, M. H. ; Grobe, K. ; Ortsiefer, M. ; Gréus, C. ; Neumeyr, C. ; Paul, S. ; Cesar, J. ; Küppers, F. ; Olmos, J. J. V. ; Monroy, I. T. :
26-Gb/s DMT Transmission Using Full C -Band Tunable VCSEL for Converged PONs.
In: IEEE Photonics Technology Letters, 29 (17) pp. 1475-1478. ISSN 1041-1135
[Artikel], (2017)

Paul, S. ; Heermeier, N. ; Malekizandi, M. ; Cesar, J. ; Haidar, M. T. ; Gréus, C. ; Neumeyr, C. ; Küppers, F. :
10-Gbps direct on-off-keying modulation across 85-nm continuous tuning range using telecom MEMS-VCSEL.
In: 2017 Conference on Lasers and Electro-Optics Europe European Quantum Electronics Conference (CLEO/Europe-EQEC).
[Konferenz- oder Workshop-Beitrag], (2017)

Lyubopytov, V. S. ; Porfirev, A. P. ; Gurbatov, S. O. ; Paul, S. ; t. F. Schumann, M. ; Cesar, J. ; Malekizandi, M. ; Haidar, M. T. ; Wegener, M. ; Chipouline, A. ; Küppers, F. :
MEMS-based wavelength and orbital angular momentum demultiplexer for on-chip applications.
In: 2017 Conference on Lasers and Electro-Optics Europe European Quantum Electronics Conference (CLEO/Europe-EQEC).
[Konferenz- oder Workshop-Beitrag], (2017)

Cesar, J. ; Paul, S. ; Haidar, M. T. ; Corbett, B. ; Chipouline, A. ; Küppers, F. :
Surface micromachined MEMS-tunable PIN-photodiodes around 1550-nm.
In: 2017 Conference on Lasers and Electro-Optics (CLEO).
[Konferenz- oder Workshop-Beitrag], (2017)

Wagner, C. ; Zou, J. ; Ortsiefer, M. ; Greus, C. ; Neumeyr, C. ; Grobe, K. ; Eiselt, M. ; Paul, S. ; Cesar, J. ; Küppers, F. ; Olmos, J. J. V. ; Monroy, I. T. :
Full C-band tunable MEMS-VCSEL for next generation G.metro mobile front- and backhauling.
In: 2017 Optical Fiber Communications Conference and Exhibition (OFC).
[Konferenz- oder Workshop-Beitrag], (2017)

Paul, Sujoy ; Lyubopytov, Vladimir ; Chipouline, Arkadi ; Schumann, Martin ; Cesar, Julijan ; Malekizandi, Mohammadreza ; Haidar, Mohammad Tanvir ; Wegener, Martin ; Küppers, Franko :
Vortex-MEMS filters for wavelength-selective orbital-angular-momentum beam generation.
In: SPIE Photonics West.
[Konferenz- oder Workshop-Beitrag], (2017)

Paul, Sujoy ; Cesar, Julijan ; Malekizandi, Mohammadreza ; Haidar, Mohammad Tanvir ; Neumeyr, Christian ; Ortsiefer, Markus ; Küppers, Franko :
Towards a SFP+ module for WDM applications using an ultra-widely-tunable high-speed MEMS-VCSEL.
In: SPIE Photonics West.
[Konferenz- oder Workshop-Beitrag], (2017)

Lyubopytov, Vladimir ; Porfirev, Aleksey ; Gurbatov, Stanislav ; Schumann, Martin ; Wegener, Martin ; Haidar, Mohammad Tanvir ; Malekizandi, Mohammadreza ; Cesar, Julijan ; Paul, Sujoy ; Chipouline, Arkadi ; Küppers, Franko :
Orbital Angular Momentum And Wavelength Demultiplexing Using Tunable MEMS-based Fabry-P?rot Filter Integrated With Spiral Phase Plate.
In: Pacific Rim Conference on Lasers and Electro-Optics (CLEO-Pacific Rim).
[Konferenz- oder Workshop-Beitrag], (2017)

Lyubopytov, Vladimir ; Porfirev, Aleksey ; Gurbatov, Stanislav ; Paul, Sujoy ; Schumann, Martin ; Cesar, Julijan ; Malekizandi, Mohammadreza ; Haidar, Mohammad Tanvir ; Wegener, Martin ; Chipouline, Arkadi ; Küppers, Franko :
Simultaneous wavelength and orbital angular momentum demultiplexing using tunable MEMS-based Fabry-Perot filter.
In: Optics Express
[Konferenz- oder Workshop-Beitrag], (2017)

2016

Paul, Sujoy ; Lyubopytov, Vladimir S. ; Schumann, Martin F. ; Cesar, Julijan ; Chipouline, Arkadi ; Wegener, Martin ; Küppers, Franko :
Wavelength-selective orbital-angular-momentum beam generation using MEMS tunable Fabry-Perot filter.
[Online-Edition: https://doi.org/10.1364/OL.41.003249]
In: Optics Letters, 41 (14) pp. 3249-3252. ISSN 0146-9592
[Artikel], (2016)

Paul, Sujoy ; Haidar, Mohammad Tanvir ; Cesar, Julijan ; Malekizandi, Mohammadreza ; Kögel, Benjamin ; Neumeyr, Christian ; Ortsiefer, Markus ; Küppers, Franko :
Far-field, linewidth and thermal characteristics of a high-speed 1550-nm MEMS tunable VCSEL.
[Online-Edition: http://dx.doi.org/10.1364/OE.24.013142]
In: Opt. Express, 24 (12) pp. 13142-13156.
[Artikel], (2016)

Haidar, Mohammed T. ; Polat, Ersin ; Paul, Sujoy ; Cesar, Julijan ; Gierl, Christian ; Chipouline, Arkadi ; Küppers, Franko :
SOA-Based Tunable Fiber Ring Laser With Intracavity MEMS-Tunable Fabry-Perot Filter.
[Online-Edition: https://doi.org/10.1364/CLEO_SI.2016.SM2P.7]
In: Conference on Lasers and Electro-Optics CLEO, San Jose, California United States. Optical Society of America
[Konferenz- oder Workshop-Beitrag], (2016)

Chipouline, A. ; Lyubopytov, V. S. ; Lerber, T. von ; Lassas, M. ; Paul, S. ; Schumann, M. F. ; Cesar, J. ; Wegener, M. ; Küppers, F. :
Applications of VCSELs in optical transmission lines and vortex generation.
In: International Conference on Laser Optics, ICLO 2016, St. Petersburg. St. Petersburg
[Konferenz- oder Workshop-Beitrag], (2016)

2015

Paul, S. ; Gierl, C. ; Cesar, J. ; Le, Q. T. ; Malekizandi, M. ; Kögel, B. ; Neumeyr, C. ; Ortsiefer, M. ; Küppers, F. :
10-Gb/s Direct Modulation of Widely Tunable 1550-nm MEMS VCSEL.
[Online-Edition: http://dx.doi.org/10.1109/JSTQE.2015.2418218]
In: IEEE Journal of Selected Topics in Quantum Electronics, 21 (6) pp. 436-443. ISSN 1077-260X
[Artikel], (2015)

Paul, Sujoy ; Cesar, Julijan ; Gierl, Christian ; Haidar, Mohammad Tanvir ; Koegel, Benjamin ; Neumeyr, Christian ; Ortsiefer, Markus ; Küppers, Franko :
Ultra wide mode-hop free tuning around 1550-NM telecom wavelength using high-speed MEMS-VCSELS.
[Online-Edition: http://dx.doi.org/10.1109/MOC.2015.7416499]
In: 20th Microoptics Conference (MOC).
[Konferenz- oder Workshop-Beitrag], (2015)

Paul, S. ; Gierl, C. ; Cesar, J. ; Küppers, F. ; Kögel, B. ; Rosskopf, J. ; Görblich, M. ; Xu, Y. ; Neumeyr, C. ; Ortsiefer, M. :
7-GHz Small-signal Modulation Response of a Surface Micromachined BCB MEMS VCSEL with> 50-nm Continuous Tuning.
[Online-Edition: https://www.osapublishing.org/abstract.cfm?uri=CLEO_Europe-2...]
In: The European Conference on Lasers and Electro-Optics, Munich, Germany. Munich, Germany
[Konferenz- oder Workshop-Beitrag], (2015)

Paul, S. ; Gierl, C. ; Cesar, J. ; Le, Q. T. ; Malekizandi, M. ; Küppers, F. ; Kögel, B. ; Rosskopf, J. ; Greus, C. ; Görblich, M. ; Xu, Y. ; Neumeyr, C. ; Ortsiefer, M. :
High speed surface micromachined MEMS tunable VCSEL for telecom wavelengths.
[Online-Edition: http://dx.doi.org/10.1364/CLEO_AT.2015.AM3K.1]
In: Lasers and Electro-Optics (CLEO), 2015 Conference on.
[Konferenz- oder Workshop-Beitrag], (2015)

Haidar, Mohammad Tanvir ; Preu, Sascha ; Paul, Sujoy ; Gierl, Christian ; Cesar, Julijan ; Emsia, Ali ; Küppers, Franko :
Widely tunable telecom MEMS-VCSEL for terahertz photomixing.
[Online-Edition: http://dx.doi.org/10.1364/OL.40.004428]
In: Optics Letters, 40 (19) p. 4428.
[Artikel], (2015)

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