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Your search keyword '"Koeber, S."' showing total 3 results
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3 results on '"Koeber, S."'

1. Low-power silicon-organic hybrid (SOH) modulators for advanced modulation formats.

Author

Lauermann M, Palmer R, Koeber S, Schindler PC, Korn D, Wahlbrink T, Bolten J, Waldow M, Elder DL, Dalton LR, Leuthold J, Freude W, and Koos C

Subjects
Electronics, Signal Processing, Computer-Assisted, Electricity, Optics and Photonics instrumentation, Organic Chemicals chemistry, Silicon chemistry
Abstract

We demonstrate silicon-organic hybrid (SOH) electro-optic modulators that enable quadrature phase-shift keying (QPSK) and 16-state quadrature amplitude modulation (16QAM) with high signal quality and record-low energy consumption. SOH integration combines highly efficient electro-optic organic materials with conventional silicon-on-insulator (SOI) slot waveguides, and allows to overcome the intrinsic limitations of silicon as an optical integration platform. We demonstrate QPSK and 16QAM signaling at symbol rates of 28 GBd with peak-to-peak drive voltages of 0.6 V(pp). For the 16QAM experiment at 112 Gbit/s, we measure a bit-error ratio of 5.1 × 10⁻⁵ and a record-low energy consumption of only 19 fJ/bit.

Published
2014
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2. Plasmonic-organic hybrid (POH) modulators for OOK and BPSK signaling at 40 Gbit/s

Author

Melikyan, A., Koehnle, K., Lauermann, M., Palmer, R., Koeber, S., Muehlbrandt, S., Schindler, P. C., Elder, D.L., Wolf, S., Heni, W., Haffner, C., Fedoryshyn, Y., Hillerkuss, D., Sommer, M., Dalton, L. R., Van Thourhout, D., Freude, W., Kohl, M., Leuthold, J., and Koos, C.

Subjects
Technology and Engineering, POWER, HIGH-SPEED, ddc:620, SILICON, Engineering & allied operations, WAVE-GUIDE
Abstract

We report on high-speed plasmonic-organic hybrid Mach-Zehnder modulators comprising ultra-compact phase shifters with lengths as small as 19 mu m. Choosing an optimum phase shifter length of 29 mu m, we demonstrate 40 Gbit/s on-off keying (OOK) modulation with direct detection and a BER < 6 x 10(-4). Furthermore, we report on a 29 mu m long binary-phase shift keying (BPSK) modulator and show that it operates error-free (BER < 1 x 10(-10)) at data rates up to 40 Gbit/s and with an energy consumption of 70 fJ/bit. (C) 2015 Optical Society of America

Published
2015

3. Integrated Nanophotonic Frequency Shifter on the Silicon- Organic Hybrid (SOH) Platform for Laser Vibrometry.

Author

Lauermann, M., Weimann, C., Palmer, R., Schindler, P. C., Koeber, S., Rembe, C., Freude, W., and Koos, C.

Subjects
NANOPHOTONICS, LASER Doppler vibrometer, WAVEGUIDES, SILICON, OPTICAL sensors, REFRACTIVE index, COMPLEMENTARY metal oxide semiconductors, HELIUM-neon lasers
Abstract

We demonstrate a waveguide-based frequency shifter on the silicon photonic platform, enabling frequency shifts up to 10 GHz. The device is realized by silicon-organic hybrid (SOH) integration. Temporal shaping of the drive signal allows the suppression of spurious side-modes by more than 23 dB. [ABSTRACT FROM AUTHOR]

Published
2014
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