High Performance and Scalable AWG for Superconducting Quantum Computing

• DOI: 10.48550/arxiv.1806.03660
• Publication Date: 2018-01-01
• Authors: Jin Lin; Futian Liang; Yu Xu; Lihua Sun; Cheng Guo; Sheng-Kai Liao; Cheng-Zhi Peng
• Keywords: Differential nonlinearity; Integral nonlinearity; Arbitrary waveform generator; Coherence time

Superconducting quantum computer is manufactured based on semiconductor process which makes qubits integration possible. At the same time, this kind of qubit exhibits high performance fidelity, de-coherence scalability and requires a programmable arbitrary waveform generator (AWG). This paper presents implementation an AWG composed two gigabit samples per second (GSPS) sampling rate, 16 bit vertical resolution digital to analog converters (DACs). The integrated with separate microwave devices onto metal plate for scale-up consideration. A special sequence output controller designed realize seamless switching generator. jitter in multiple channels around 10ps, Integral nonlinearity (INL) as well differential (DNL) about 2 LSB, time (T2*) achieved 33% promotion over that commercial 1 GSPS, 14 AWG.