1 citations · 1 across the 7 of their papers we have counts for
7 papers
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…
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…
Raman Microspectroscopy for Real-Time Structure Indicator in Ultrafast Laser Writing
Xingrui Cheng, Eugenio Picheo, Zhixin Chen +3
Femtosecond laser fabrication enables the creation of a wide range of devices, but its scalability and yield can be limited by the lack of real-time, in-situ monitoring tools. In p…
Laser written waveguides to the sample edge
Zhi-Kai Pong, Mohan Wang, Ji Qin +2
A method is presented for fabrication of femtosecond laser written waveguides in glass to remove the need for polishing of substrates after processing. It is shown that by amplitud…
On the localization of the high-intensity region of simultaneous space-time foci
Emily Archer, Bangshan Sun, Roman Walczak +2
Simultaneous space-time focusing (SSTF) is sometimes claimed to reduce the longitudinal extent of the high-intensity region near the focus, in contradiction to the original work on…
Laser-written scalable sapphire integrated photonics platform
Mohan Wang, Patrick S. Salter, Frank P. Payne +3
In this paper, we demonstrate the integration of photonic devices on sapphire substrates using multi-layer depressed cladding waveguides at both 780 nm and 1550 nm. The devices are…
Polarization based modulation of splitting ratio in femtosecond laser direct written directional couplers
Zhi-Kai Pong, Bangshan Sun, Patrick S. Salter +1
This work characterizes a phenomenon in direct laser written directional couplers where the splitting ratio for output light is dependent on the input polarization state. In genera…