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physics.optics2026
Sapphire Photonic Crystal Fiber Sensor
Mohan Wang, Tongyu Liu, Zipei Song +10
Sapphire optical fiber shows great promise for remote sensing in extreme environments approaching 2000 degC, by using laser-processing to form a single-mode waveguide within it. Ho…
physics.optics2026
Straight Directional Couplers via Scan-Engineered Index Control
Mohan Wang, Martin J. Booth, Patrick S. Salter
A novel design for straight directional waveguide couplers and interferometers is demonstrated in glass, fabricated using femtosecond laser direct writing and operating at telecomm…