薄膜基酸光子电路用于光线追踪加速
Shiji Zhang1, Zixi Liu1, Xueyi Jiang1
1Wuhan National Laboratory for Optoelectronics, School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan, 430074, China.
Nature communications
|July 1, 2025
概括
我们使用薄膜基酸盐开发了一种光子射线追踪核心 (PRTC),以实现更快,更节能的空间计算. 这种光学方法克服了电子限制和模拟到数字转换器瓶.
科学领域:
- 光学和光子学 在光学和光子学.
- 计算机科学 计算机科学
- 材料科学 材料科学 材料科学
背景情况:
- 实时,物理现实的染在空间计算中是计算密集的.
- 当前的电子平台面临复杂的光线跟踪的性能限制.
- 模拟计算加速器受到耗电的模拟数字转换器 (ADC) 的阻碍.
研究的目的:
- 提出并展示第一个用于加速射线追踪的光子硬件.
- 为了克服电子射线追踪的计算和能源效率挑战.
- 为了规避光学计算系统中的ADC瓶.
主要方法:
- 开发了一个光子射线追踪核心 (PRTC) 使用薄膜酸 (TFLN).
- 利用TFLN的高带宽,线性和效率进行光学射线盒交叉测试.
- 利用射线盒交叉测试的二进制性质,将ADC位宽减少到1位.
主要成果:
- 每次运行 (fJ/OP) 实现了326 femtojoules的能源效率.
- 证明调制器带宽超过100 GHz.
- 与电子硬件相比,在数量级上显著提高了速度和能源效率.
结论:
- 光子射线跟踪核心 (PRTC) 为高性能,低功耗的空间计算提供了可行的解决方案.
- 这项工作证明了光子芯片用于光线跟踪加速的可行性.
- 这种方法有效地绕过了ADC瓶,为未来的光学计算创新铺平了道路.
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