相关实验视频
Updated: Jun 13, 2025

08:48
Writing Bragg Gratings in Multicore Fibers
Published on: April 20, 2016
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概括
我们开发了一种新的光子学方法,使用布拉格格来创建多通道过器. 这项创新使得高灵敏度温度传感等应用的精确光学过成为可能.
科学领域:
- 光子学和光学工程 光子学和光学工程
- 材料科学 材料科学 材料科学
- 纳米技术纳米技术
背景情况:
- 在绝缘体 (SOI) 技术对于集成光子学至关重要.
- 布拉格格是光学过的基本组成部分.
- 开发具有一致的自由光谱范围 (FSR) 的多通道片是具有挑战性的.
研究的目的:
- 设计和演示一种新的多道片生成方案.
- 为了利用布拉格格来创建光学微腔.
- 在SOI技术中实现一致的通道编号和FSR.
主要方法:
- 在220纳米厚的SOI中使用布拉格格设计了一个过器生成方案.
- 通过精确控制光路长度,形成光学微腔.
- 制造和测试的设备用于两个,三个和四通道的过器.
主要成果:
- 实现了大约5.5nm,4nm和3.3nm的FSR的片.
- 演示了一种具有53 pm/K灵敏度的温度传感器的三通道过器.
- 在光子学中验证了一种利用布拉格格的新方案.
结论:
- 拟议的方案提供了一种新方法来产生多通道片过器.
- 这种方法与标准的SOI制造相兼容.
- 它为密集集成的光子设备和传感器开辟了新的可能性.
相关概念视频
Design Example: Capacitance Multiplier Circuit
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In integrated circuit technology, a capacitance multiplier is often utilized to produce a larger capacitance value when a small physical capacitance falls short. This is achieved by a circuit that multiplies capacitance values by a factor of up to 1000, such that a 10-pF capacitor can replicate the performance of a 100-nF capacitor.
The circuit illustrated in Figure 1 below incorporates two op-amps, with the first operating as a voltage follower and the second acting as an inverting amplifier.
The circuit illustrated in Figure 1 below incorporates two op-amps, with the first operating as a voltage follower and the second acting as an inverting amplifier.
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The innovation of touch-tone telephony revolutionized the telecommunications industry by replacing the traditional rotary dial with a dual-tone multi-frequency (DTMF) signaling system. This system uses a matrix-style keypad with buttons arranged in four rows and three columns, creating 12 distinct signals each assigned to a pair of frequencies. Each button press results in a simultaneous generation of two sinusoidal tones – one from a low-frequency group (697 to 941 Hz) and one from a...
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