Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Ayat M. Taha"'
Publikováno v:
IEEE Photonics Journal, Vol 14, Iss 6, Pp 1-9 (2022)
In this paper we study the gas sensing performance of a compact silicon photonics Mach-Zehnder interferometer (MZI) with a coiled sensing arm. A partially exposed sensor was fabricated using deep UV lithography, with a process resolution of 248 nm. T
Externí odkaz:
https://doaj.org/article/fd95754e8e924aa1b7654a405aa64bfe
Autor:
Ayat M. Taha, Michal Rakowski, Ajey Jacob, Jaime Viegas, Rod Augur, Sujith Chandran, Marcus S. Dahlem, Yusheng Bian
Publikováno v:
IEEE Photonics Journal, Vol 13, Iss 4, Pp 1-6 (2021)
We demonstrate a compact ($367 \times 67 \, \mu {\text{m}}^2$) four-channel wavelength division multiplexer using an arrayed waveguide grating based on multimode interference couplers, and built on a monolithic silicon photonics platform. The design
Autor:
Marios Papadovasilakis, Sujith Chandran, Yonas Gebregiorgis, Ayat M. Taha, Kanhaya Sharma, Yusheng Bian, Michal Rakowski, Rod Augur, Jaime Viegas
Publikováno v:
Optics Express. 31:10862
We experimentally demonstrate wavelength-independent couplers (WICs) based on an asymmetric Mach-Zehnder interferometer (MZI) on a monolithic silicon-photonics platform in a commercial, 300-mm, CMOS foundry. We compare the performance of splitters ba
Autor:
Yonas Gebregiorgis, Marios Papadovasilakis, Sujith Chandran, Ayat M. Taha, Kanhaya Sharma, Yusheng Bian, Michal Rakowski, Rod Augur, Jaime Viegas
Publikováno v:
Frontiers in Optics + Laser Science 2022 (FIO, LS).
We experimentally demonstrate a compact and power efficient (Pπ = 21 mW) silicide-based thermo-optic phase shifter of length 96 µm for photonic neural networks.
Autor:
Marios Papadovasilakis, Sujith Chandran, Yonas Gebregiorgis, Ayat M. Taha, Yusheng Bian, Michal Rakowski, Subramanian Krishnamurthy, Rod Augur, Abdelsalam Aboketaf, Jaime Viegas
Publikováno v:
Frontiers in Optics + Laser Science 2022 (FIO, LS).
We experimentally demonstrate fabrication-tolerant, arbitrary power splitters based on a Mach-Zehnder Interferometer (MZI). The devices exhibit maximum splitting ratio deviation of 1.2%, and maximum insertion loss of only 0.36 dB across the O-band.
Publikováno v:
SPIE Proceedings.
In this work, we demonstrate centimeter-long Mach-Zehnder interferometers (MZIs) suitable for optical uid sensing applications, fabricated on a silicon-on-insulator platform through photolithography. The sensing mech- anism is based on the perturbati
Autor:
Marcus S. Dahlem, Mahmoud Shahin, Bob Voort, Ayat M. Taha, Hayk Gevorgyan, C.E. Dimas, Anatol Khilo, Soha E. Yousuf
Publikováno v:
Advanced Photonics 2015.
A fully suspended microring resonator sensor supported by a sub-wavelength grating is proposed. Sensitivity of 503nm/RIU and Q-factor of 75k are predicted for a resonator with 450nm-period grating. Q=29k is measured for an unsuspended resonator.