A5022613772- Optical Coherence Tomography Applications
- Advanced Fiber Optic Sensors
- Random lasers and scattering media
- Photonic and Optical Devices
- Optical Polarization and Ellipsometry
- Gas Sensing Nanomaterials and Sensors
- GaN-based semiconductor devices and materials
- Advanced Fiber Laser Technologies
- Luminescence Properties of Advanced Materials
National University of Defense Technology
2024
Institut Supérieur de l'Électronique et du Numérique
2012
One issue with speckle-based reconstructive spectrometer (RS) is the reduced accuracy of computing output when measuring broadband signals. In this manuscript, we improve reconstruction RS by leveraging polarization transmission matrix (PTM). Unlike previous works that solely utilize speckle intensity at end multimode fiber facet, incorporate complete information for higher-quality spectral recovery. By optimizing independent spatial channels, output–input ratio, and contrast, PTM enables to...
Abstract This study presents a high-accuracy, all-fiber mode division multiplexing (MDM) reconstructive spectrometer (RS). The MDM was achieved by utilizing custom-designed 3 × 1 mode-selective photonics lantern to launch distinct spatial modes into the multimode fiber (MMF). facilitated information transmission increasing light scattering processes, thereby encoding optical spectra more comprehensively speckle patterns. Spectral resolution of 2 pm and recovery 2000 spectral channels were...