High Resolution Multi-Channel Voltage Reference Generator for Ezperiments on Quantum-Dot Devices

摘要：

High precision,multiple channel,fine tunable voltage references are often required for experiments on quantum-dot devices for controlling the electron states to form specific structure. A fiber-ring based multi-channel voltage reference generator for these experiments is designed and constructed. The generator adopts 20-bit DACs and amplifiers producing high resolution voltages ranging from-10V to 0V. By specific fiber-ring structure,several generators may be cascaded together to provide the required number of channels. A number of methods,which effectively constrain the noise level and temperature influence,are also described in the paper. The test results show that the generator has a drift less than 6ppm/℃ of FSR and voltage noise of3.8μVrms,which is well suitable for our present experiments on quantum-dot devices.

关键词： quantum-dot devices gate-voltage fiber-ring low noise low drift DAC1220.

作者: Dajun Huang Yonggang Wang Lijun Zhang Cheng Zhou Xiaojie Hao

作者单位: Department of Modern Physics University of Science and Technology of China,CAS,Hefei,Anhui 230026,Ch Key Laboratory of Quantum Information University of Science and Technology of China,CAS,Hefei,Anhui

会议类型: 国际会议

会议名称: 2009 9th International Conference on Electronic Measurement & Instruments(第九届电子测量与仪器国际会议 ICEMI2009)

会议地点: 北京

会议语种:英文

页码: 913-916

在线出版日期: 2009-08-16（万方平台首次上网日期，不代表论文的发表时间）