Results 251 to 260 of about 19,023 (293)

Polarization-insensitive photonic microwave downconversion

Optics Letters, 2013
A polarization-insensitive photonic microwave downconverter is proposed and demonstrated, which is comprised of a polarization beam splitter, two Mach-Zehnder modulators (MZMs), and a balanced photodetector. By biasing the MZMs at the quadrature bias points with opposing modulation slopes, the performance of the proposed photonic microwave ...
Xiaowen, Gu, Shilong, Pan, Zhenzhou, Tang, Dan, Zhu, Ronghui, Guo, Yongjiu, Zhao   +5 more
openaire   +2 more sources

Mid-infrared polarization-insensitive grating coupler

Optics Letters, 2022
Mid-infrared (Mid-IR) (2–20 µm) silicon photonics has attracted much attention in the past few years due to its application potential in free-space optical communications, light detection and ranging, and molecular analysis. The grating coupler technology is one of the most widely employed approaches for light coupling between optical fibers and ...
Haoran Gao, Rongxiang Guo, Shujiao Zhang, Chunzhen Lin, Tiegen Liu, Zhenzhou Cheng   +5 more
openaire   +2 more sources

Analysis of a semiconductor optical amplifier with polarization-insensitive gain and polarization-insensitive phase modulation

Semiconductor Science and Technology, 2006
The polarization dependence of phase modulation in a semiconductor optical amplifier (SOA) has negative impacts on some pump/probe applications of SOAs. We propose the necessity of fabricating SOA with polarization-insensitive gain and polarization-insensitive phase modulation and study the possibility.
Lirong Huang, Dexiu Huang, Jun Chen, Deming Liu, Xinliang Zhang   +4 more
openaire   +1 more source

On-chip polarization-insensitive Fourier transform spectrometer

Optics Letters, 2020
Chip-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
openaire   +2 more sources

Polarization-Insensitive Isolators and Circulators on InP Photonics

2023 Optical Fiber Communications Conference and Exhibition (OFC), 2023
On-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
openaire   +1 more source

Polarization-insensitive ultra-short waveguide taper

Optics Letters, 2021
Waveguide 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, Xiaodong Shi, Zhaojian Zhang, Chao Ma, Xuefeng Chen, Liping Liu, Xiaoxian Song, Haiting Zhang, Yu Yu, Haiyan Ou, Kai Guo, Junbo Yang   +11 more
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Polarization insensitive hydrophone

The Journal of the Acoustical Society of America, 1996
A 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 ...
openaire   +1 more source

Polarization insensitive laser stabilizer

SPIE Proceedings, 1994
Polarization 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
openaire   +1 more source

Study of polarization-insensitive wave mixing in bulk semiconductor optical amplifiers

IEEE Photonics Technology Letters, 1998
A detailed experimental investigation of polarization-insensitive dual-pump wave mixing in bulk, polarization-insensitive semiconductor optical amplifier (SOA) is reported.
Ioannis Tomkos, D Syvridis, T Sphicopoulos   +2 more
exaly   +1 more source

Polarization-insensitive all-optical demultiplexing system

Proceedings of 1996 Canadian Conference on Electrical and Computer Engineering, 2002
A 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., Myslinski, P., Chrostowski, J., Galko, P.   +3 more
openaire   +2 more sources