PONyDAC II (Precise Optical Nyquist Pulse Synthesizer DAC)

PONyDAC II（精密光学奈奎斯特脉冲合成器 DAC）

• 批准号: 403154102
• 负责人: Professor Dr.-Ing. Christoph Scheytt
• 金额: --
• 依托单位: Institut für Hochfrequenztechnik
• 依托单位国家: 德国
• 项目类别: Priority Programmes
• 财政年份: 2018
• 资助国家: 德国
• 起止时间: 2017-12-31 至 2021-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/403154102?language=en
• 关键词: PONyDAC; II; Precise; Optical; Nyquist

Photonic digital-to-analog converters (DACs) can achieve bandwidths far beyond those of electronic DACs. The PONyDAC project is investigating a novel photonic DAC, the PONyDAC (Precise Optical Sinc-shaped Nyquist Pulse Synthesizer DAC), which combines precise Nyquist pulse synthesis with a time-interleaved DAC concept. The concept is compatible with integration into silicon photonics technology and enables bandwidths well above those of electronic DACs, as well as above the bandwidth of the Mach-Zehnder modulators used. Based on the results of the first phase of the PONyDAC project, the second phase of PONyDAC will a) develop and characterize a monolithic-integrated area-efficient PONyDAC chip in an advanced, photonic silicon germanium BiCMOS technology. The single-chip PONyDAC shall operate more than 100 GHz sampling rate and achieve an optical bandwidth of more than 100 GHz. Furthermore, b) a new method for electronic-photonic arbitrary signal generation (sampling-points-to-analog conversion (SPAC)) shall be investigated and validated by measurements. Finally, c) the potential of extremely broadband thin-film lithium niobate modulators in lithium niobate-on-insulator (LNOI) technology for PONyDAC and SPAC will be explored. LNOI modulators can be integrated in silicon photonics technology and exhibit much larger bandwidth than conventional silicon modulators. They have the potential to enable single-chip photonic DACs with several 100 GHz of contiguous bandwidth without frequency interleaving in a silicon photonics technology.

光子数模转换器（DAC）可以实现远远超过电子DAC的带宽。PONYDAC项目正在研究一种新型的光子DAC，PONYDAC（精密光学正弦形奈奎斯特脉冲合成器DAC），它将精密奈奎斯特脉冲合成与时间交错DAC概念相结合。该概念与集成到硅光子技术中兼容，并使带宽远高于电子DAC的带宽，以及所使用的马赫-曾德尔调制器的带宽。基于PONYDAC项目第一阶段的成果，PONYDAC的第二阶段将a）采用先进的光子硅锗BiCMOS技术开发和表征单片集成面积高效的PONYDAC芯片。单芯片PONYDAC应工作在100 GHz以上的采样率，并实现100 GHz以上的光带宽。此外，B）应研究并通过测量验证电子-光子任意信号生成的新方法（采样点模拟转换（SPAC））。最后，c）将探索用于PONYDAC和SPAC的绝缘体上锂酸盐（LNOI）技术中的极宽带薄膜锂酸盐调制器的潜力。LNOI调制器可以集成在硅光子技术中，并且表现出比常规硅调制器大得多的带宽。它们有可能实现具有几个100 GHz连续带宽的单芯片光子DAC，而无需在硅光子技术中进行频率交织。