Optical Pulse-Drive for the Pulse-Driven AC Josephson Voltage Standard
| العنوان: | Optical Pulse-Drive for the Pulse-Driven AC Josephson Voltage Standard |
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| المؤلفون: | Jane Ireland, Per Ohlckers, Eivind Bardalen, R. Wendisch, Bjornar Karlsen, Oliver Kieler, Luis Palafox, Muhammad Nadeem Akram, Jonathan M. Williams, Helge Malmbekk, Ralf Behr |
| المصدر: | IEEE Transactions on Applied Superconductivity. 29:1-5 |
| بيانات النشر: | Institute of Electrical and Electronics Engineers (IEEE), 2019. |
| سنة النشر: | 2019 |
| مصطلحات موضوعية: | Materials science, Optical fiber, business.industry, Josephson voltage standard, Condensed Matter Physics, Chip, 01 natural sciences, Electronic, Optical and Magnetic Materials, Photodiode, law.invention, Generator (circuit theory), Root mean square, law, 0103 physical sciences, Waveform, Optoelectronics, Electrical and Electronic Engineering, 010306 general physics, business, Voltage |
| الوصف: | We developed an optical pulse-drive for the operation of the Josephson Arbitrary Waveform Synthesizer (JAWS) using a fast photodiode (PD) operated at 4 K, close to the JAWS chip. The optical pulses are transmitted to the PD by an easily removable optical fiber attached to it. A bare-lensed PD is mounted by flip-chip technique to a custom-made silicon-carrier chip. This carrier chip is equipped with coplanar waveguides to transmit the electrical pulses from the PD to the JAWS chip mounted on a separate printed circtuit board (PCB). The main components of this optical setup are a laser source, a high-speed Mach–Zehnder modulator, and the modulator driver. The waveform pattern is supplied by a commercial pulse pattern generator providing up to 15 GHz electrical return-to-zero (RTZ)-pulses. Unipolar sinusoidal waveforms were synthesized. Using a JAWS array with 3000 junctions, an effective output voltage of 6.6 mV root mean square (RMS) at the maximum available clock-frequency of 15 GHz was achieved. Higher harmonics were suppressed by more than 90 dBc at laser-bias operation margins of more than 1 mA. |
| تدمد: | 2378-7074 1051-8223 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::9393c281eced942d4f2f2352e02d27a6 https://doi.org/10.1109/tasc.2019.2899851 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi...........9393c281eced942d4f2f2352e02d27a6 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 23787074 10518223 |
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