⚡ 本页包含 AI 生成的分析内容,仅供参考
该论文提出了用于自由空间光学供电传感器应用的超低压电路,利用不同波长的光学源同时提供功率、时钟和数据,并通过环形谐振器等光子器件消除串扰。解决了传统传感器在低功耗和抗干扰方面的挑战,拓展了光子学在低性能传感器系统中的应用。
University of California, Davis, CA Cisco Systems, Davis, CA 3 Agilent Technology, Santa Clara, CA 2 Advances in photonics have typically been exploited in high performance systems, e.g. high-frequency, low-jitter clocks injected optically [1]. As solid-state lighting and free-space optical (FSO) communication expand, low-performance sensor systems can also benefit from photonics. Sensors can receive power, clock, and data from optical sources at different wavelengths with crosstalk eliminated through narrowband filtering by photonic devices (e.g., ring resonators [2]). Applications include indoor environmental sensing or biomedical devices implanted under the skin (transcutaneous optical power). However, significant challenges to realizing such systems exist. FSO power decreases quadratically (beam divergence) and exponentially (absorption) with distance, thus optically-powered sensors must be extremely low power to maximize operating
Travis Kleeburg1, Jeffrey Loo2, Nathaniel J Guilar3, Erin Fong1, Rajeevan Amirtharajah1