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On-chip polarization-insensitive Fourier transform spectrometer
Optics Letters, 2020Chip-scale monolithic Fourier transform spectrometers (FTSs) offer great potential for inexpensive, high-resolution, and robust spectroscopic applications in a wide variety of scenarios. Having attracted considerable attention, spatial heterodyne FTSs (SH-FTSs) are featured with a simple and stable configuration composed of an array of Mach–Zehnder ...
Huijie Wang, Qifeng Li, Wei Shi
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Polarization-Insensitive Isolators and Circulators on InP Photonics
2023 Optical Fiber Communications Conference and Exhibition (OFC), 2023On-chip isolators and circulators are regarded as the last piece of puzzle for photonic integrated circuits. In this paper recent successful demonstration of a polarization insensitive design, compatible with the InP laser process on a thin membrane, is presented.
Yuqing Jiao, Rui Ma, Sander Reniers
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Polarization-insensitive ultra-short waveguide taper
Optics Letters, 2021Waveguide taper, a key component in the photonic integrated circuit (PIC), enables on-chip mode conversion, but large-footprint tapers are detrimental to the PIC, which desires compact and efficient devices. Polarization sensitivity also limits the tapers in the applications involving orthogonal modes.
Jingjing Zhang +11 more
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Polarization insensitive hydrophone
The Journal of the Acoustical Society of America, 1996A hydrophone is formed of first and second optical fibers coupled together to form a fiber optic interferometric sensor for sensing an acoustic signal. The optical fibers are wrapped around a pair of concentric, thin-walled hollow cylinders. The fiber wrapped around the inner cylinder is the reference leg of the interferometer and the fiber wrapped ...
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Polarization insensitive laser stabilizer
SPIE Proceedings, 1994Polarization insensitive laser stabilizer which can be used for both polarized and unpolarized beams is presented. The system utilizes a polarization independent variable attenuator which is composed of two identical polarization beamsplitting prisms and an improved Pockels cell to control the incoming laser beam intensity.
Mingshan Zhao, Guohua Li, Yaling Jing
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Polarization-insensitive all-optical demultiplexing system
Proceedings of 1996 Canadian Conference on Electrical and Computer Engineering, 2002A novel all-optical demultiplexing system which is insensitive to the state of polarization of the input signals as well as to their drift in polarization is simulated. The technique employs a modified nonlinear optical loop mirror configuration to demultiplex 50 GHz pulse train into 10 GHz. The gain of an erbium-doped fiber amplifier is varied between
Atieh, A.K. +3 more
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Polarization insensitive metamaterial absorber for energy harvesting
2015 27th International Conference on Microelectronics (ICM), 2015This paper presents the design of a polarization insensitive microwave absorber based on metamaterial for electromagnetic energy harvesting. The unit cell of the metamaterial consists of eight-fold rotational symmetric electric resonator printed on FR4 substrate with a ground plane to realize both electric and magnetic resonances to achieve efficient ...
Lalj, H. +3 more
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On the design of polarization‐insensitive semiconductor optical amplifiers
Microwave and Optical Technology Letters, 2002AbstractWe have used the 4 × 4 Luttinger–Kohn Hamiltonian to analyse the presence of delta‐strain in quantum well on the polarization properties of semiconductor optical amplifiers. The analysis is performed for a 1.55 μm InGaAsP/InP lattice matched system grown in the [001] direction with and without the electrostatic effects of the carrier charges ...
Weetman, Philip, Wartak, Marek
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Polarization insensitive, broadband terahertz metamaterial absorber
Optics Letters, 2011We present the simulation, implementation, and measurement of a polarization insensitive broadband resonant terahertz metamaterial absorber. By stacking metal-insulator layers with differing structural dimensions, three closely positioned resonant peaks are merged into one broadband absorption spectrum.
James, Grant +4 more
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IEEE Photonics Technology Letters, 1989
A polarization-insensitive optical amplifier consisting of two semiconductor laser amplifiers and a polarization-insensitive isolator in series is presented. The isolator not only eliminates the cavity coupling between two amplifiers, but also rotates polarized forward light by 90 degrees . Experiments demonstrate the elimination of cavity coupling and
M. Koga, T. Matsumoto
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A polarization-insensitive optical amplifier consisting of two semiconductor laser amplifiers and a polarization-insensitive isolator in series is presented. The isolator not only eliminates the cavity coupling between two amplifiers, but also rotates polarized forward light by 90 degrees . Experiments demonstrate the elimination of cavity coupling and
M. Koga, T. Matsumoto
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