DAC-less amplifier-less generation and transmission of QAM signals using sub-volt silicon-organic hybrid modulators
Abstract:
We demonstrate generation and transmission of optical signals by directly interfacing highly efficient silicon-organic hybrid (SOH) modulators to binary output ports of an FPGA. Using an SOH Mach-Zehnder modulator (MZM) and an SOH IQ modulator we generate on-off-keying (OOK) and binary phase shift keying (BPSK) signals as well as quadrature phase shift keying (QPSK) and 16-state quadrature amplitude modulation (16QAM) formats. Peak-to-peak voltages amount to only 0.27 Vpp for driving the MZM and 0.41 Vpp for the IQ modulator. Neither digital-to-analog converters (DAC) nor drive amplifiers are required, and the RF energy consumption in the modulator amounts to record-low 18 fJ/bit for 16QAM signaling
| Zugehörige Institution(en) am KIT | Institut für Photonik und Quantenelektronik (IPQ) Universität Karlsruhe (TH) – Interfakultative Einrichtungen (Interfakultative Einrichtungen) Karlsruhe School of Optics & Photonics (KSOP) |
| Publikationstyp | Zeitschriftenaufsatz |
| Publikationsjahr | 2015 |
| Sprache | Englisch |
| Identifikator | ISSN: 0733-8724 urn:nbn:de:swb:90-543571 KITopen-ID: 1000054357 |
| Erschienen in | Journal of Lightwave Technology |
| Verlag | Optica Publishing Group (OSA) |
| Band | 77 |
| Heft | 7 |
| Seiten | 1425-1432 |
| Schlagwörter | Electrooptic modulation, Optical transmitters, Phase shift keying, Photonic integrated circuits, Quadrature amplitude modulation, Silicon photonics |
| Nachgewiesen in | Scopus Web of Science Dimensions |