Zobrazeno 1 - 10
of 21
pro vyhledávání: '"Deniz Onural"'
Autor:
Bohan Zhang, Mark Schiller, Kenaish Al Qubaisi, Deniz Onural, Anatol Khilo, Michael J. Naughton, Miloš A. Popović
Publikováno v:
Optics letters. 47(13)
Grating coupler devices provide efficient, foundry-compatible vertical fiber-to-chip coupling solutions in integrated photonic platforms. However, standard grating coupler designs are highly polarization sensitive, which hinders their adoption. We pr
Autor:
Kenaish Al Qubaisi, Mark Schiller, Bohan Zhang, Deniz Onural, Michael J. Naughton, Miloš A. Popović
Publikováno v:
Optics Letters. 48:1024
We report on the design, fabrication, and experimental characterization of photonic crystal (PhC) nanobeam cavities with the smallest footprint, largest intrinsic quality factor, and smallest mode volume to be demonstrated to date in a monolithic CMO
Autor:
Bohan Zhang, Mark Schiller, Kenaish Al Qubaisi, Deniz Onural, Anatol Khilo, Michael J. Naughton, Miloš A. Popović
Publikováno v:
Conference on Lasers and Electro-Optics.
We demonstrate a one-dimensional dual polarization fiber-to-chip grating coupler implemented in a CMOS-photonics foundry platform, with a measured 1 dB polarization-dependent loss bandwidth of 70 nm in the O-band.
Publikováno v:
Optical Fiber Communication Conference (OFC) 2022.
We demonstrate a scheme for microring resonators to operate as standing-wave resonators while eliminating reflections and maintaining traveling-wave-resonator-like through-port response, potentially enabling interdigitated p-n junction microring modu
Publikováno v:
ESSCIRC
A novel coherent optical link is proposed to serve as the interconnection technology between the room temperature and cryogenic temperature environment for quantum computing and high-performance superconducting computing. The tradeoff on the energy e
Autor:
Nathan Dostart, Bohan Zhang, Michael Brand, Kenaish Al Qubaisi, Deniz Onural, Daniel Feldkhun, Miloš Popović, Kelvin Wagner
Publikováno v:
Optics Express. 30:24589
Optical phased arrays (OPAs) which beam-steer in two dimensions (2D) are currently limited to grating row spacings well above a half wavelength. This gives rise to grating lobes along one axis which limit the field of view (FOV), introduce return sig
Publikováno v:
Optics letters. 46(3)
Optical isolators, while commonplace in bulk- and fiber-optic systems, remain a key missing component in integrated photonic systems. Isolation using magneto-optic effects has been difficult to implement due to fabrication restraints, motivating use
Publikováno v:
Frontiers in Optics + Laser Science 2021.
We demonstrate a 70 µm-long silicon rapid adiabatic coupler (RAC) with <0.07 dB insertion loss over 50 nm and power splitting ratio 50 ± 1% over 200 nm bandwidth fabricated in the commercial 45RF ‘zero change’ CMOS electronics-photonics platfor
Publikováno v:
Frontiers in Optics + Laser Science 2021.
We propose photonic molecule electro-optic modulators with tunable supermode splitting for efficient widely tunable RF sideband generation. Using an auxiliary tunable off-resonant cavity as a variable coupler maintains a high Q/V.
Publikováno v:
Frontiers in Optics + Laser Science 2021.
Propagation loss is characterized vs. waveguide width in a 220 nm silicon photonics foundry platform to form a compact model. Test paperclips and racetrack resonators with quality factors up to 7.6 million reveal losses as low as 0.064 dB/cm.