Results 11 to 20 of about 4,324 (259)
IEEE Photonics Journal, 2021 We proposed a design of a fundamental TM mode waveguide optical isolator using lithium niobate on insulator (LNOI) and deposited magneto-optical film. The optical isolator adopts an asymmetric Mach-Zehnder interferometer (MZI) structure composed of two 1&
Mingxuan Li +6 more
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On-chip terahertz isolator with ultrahigh isolation ratios
Nature Communications, 2021 Nonreciprocal devices are crucial in scientific research and practical applications at all frequencies. Here the authors demonstrate an integrated terahertz optical isolator based on the magneto-optical effect in a nonreciprocal resonator.
Shixing Yuan +8 more
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Sole Excited-State InAs Quantum Dot Laser on Silicon With Strong Feedback Resistance
Frontiers in Materials, 2021 A feedback insensitive laser is a prerequisite for a desirable laser source for silicon photonic integration, as it is not possible to include an on-chip optical isolator.
Jia-Jian Chen +9 more
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Vulnerabilities in the quantum key distribution system induced under a pulsed laser attack [PDF]
Научно-технический вестник информационных технологий, механики и оптики, 2021 Quantum communication protocols are considered secure provided that all devices included in the system are fully characterized, and side channels are closed. However, as a result of laser radiation exposure, it is possible to change quantum communication
Daria D. Ruzhitskaya +12 more
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Noiseless single-photon isolator at room temperature
Communications Physics, 2023 Nonreciprocal devices, such as isolators, are of great importance for optical communication and optical information processing. To bypass the limitation of a strong magnetic field imposed by the traditional Faraday magneto-optic effect, many alternative ...
Shicheng Zhang +3 more
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Isolated Optic Disc Tuberculosis [PDF]
Case Reports in Ophthalmology, 2015 We present a healthy male subject who developed progressive visual loss in the left eye initially diagnosed as optic neuritis. Upon suspicion of infectious etiology, testing was positive for tuberculosis. There were no signs or symptoms of active systemic tuberculosis infection.
Ahmad M. Mansour +2 more
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Optical isolation using microring modulators
Optics Letters, 2021 Optical isolators, while commonplace in bulk and fiber optical systems, remain a key missing component in integrated photonics. Isolation using magneto-optic materials has been difficult to integrate into complementary metal–oxide–semiconductor (CMOS) fabrication platforms, motivating the use of other paths to effective non-reciprocity such as temporal
Nathan Dostart +3 more
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Crystals, 2019 This paper presents a novel magneto-optical isolator based on an ultra-wideband and high efficiency photonic crystals (PCs) waveguide and gyromagnetic ferrites. The three-dimensional numerical simulation finds that the photonic crystals waveguide’s
Yong Wang +7 more
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Experimental demonstration of cavity-free optical isolators and optical circulators
Physical Review Research, 2020 Cavity-free optical nonreciprocity components, which have an inherent strong asymmetric interaction between the forward- and backward-propagation direction of the probe field, are key to produce such as optical isolators and circulators. According to the
En-Ze Li +11 more
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Application of Wafer Direct Bonding Technique to Optical Nonreciprocal Devices
IEEE Photonics Journal, 2011 A wafer direct bonding technique enables one to integrate dissimilar crystals like a magnetooptic garnet on Si and III–V semiconductors, which facilitates fabrication of optical nonreciprocal devices on commonly used waveguide platforms.
Tetsuya Mizumoto, Ryohei Takei
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