Nanyang Technological University Advances Measurement Precision with Twisted Fiber Optics
Singapore, Tuesday, 22 April 2025.
Researchers have innovated a technique using twisted light in fiber optics, improving rotational Doppler velocimetry for more accurate measurements across scientific fields.
Breakthrough in Optical Metrology
On April 21, 2025, researchers from Nanyang Technological University (NTU) announced a significant breakthrough in optical metrology using twisted light in fiber optics. This advancement, particularly in all-fiber rotational Doppler velocimetry (AF-RDV), promises to revolutionize the accuracy of angular velocity measurements for spinning objects [1]. The technique involves leveraging the rotational dynamics of light to enhance measurement precision, which is essential across various scientific fields [2].
How Twisted Fiber Optics Work
The AF-RDV system, developed by Wan et al., utilizes vortex beams that interact with rotating objects to detect high-speed rotational velocities [2]. A key feature of this system is its reciprocal property, which ensures consistent results regardless of operational mode. Additionally, its achromatic operation over an ultra-broadband wavelength range allows it to integrate seamlessly into various devices and systems without significant modifications [1][3].
Potential Applications and Future Prospects
The implications of this technology are extensive, spanning from monitoring aircraft engine performance to enhancing safety systems in the automotive industry [3]. The AF-RDV’s precision and simplicity position it as a vital tool in manufacturing processes where accuracy is paramount. Furthermore, researchers suggest that future integration with other advanced structured light techniques could allow the AF-RDV to be used in micro-scale systems and lab-on-a-chip technologies, thereby broadening its scope of application [2][1].
Collaborative Efforts and Industry Impact
The research at NTU underscores the collaborative efforts within the optical metrology field, involving input not only from NTU but also other institutions focused on structuring sophisticated light fields, such as optical skyrmions [4]. Lead researcher Dr. Emily Tan emphasizes that this innovation is poised to provide unprecedented accuracy in measurements. The ongoing advancements at NTU are paving the way for broader applications in telecommunications and materials science, highlighting their potential to impact these industries significantly [5][2].