Results 31 to 40 of about 148,804 (200)

Fabrication of rGO-GO Long Period Fiber Grating Using Laser Reduction Method

open access: yesIEEE Photonics Journal, 2017
A laser-reduction technique is investigated to fabricate a novel long period fiber grating (LPFG), whose period is a section of graphene oxide (GO) and reduced graphene oxide (rGO) films on a side polished fiber.
Liheng Chen   +9 more
doaj   +1 more source

Power Transfer Function Tailoring in a Highly Ge-Doped Nonlinear Interferometer-Based All-Optical Thresholder Using Offset-Spectral Filtering

open access: yesIEEE Photonics Journal, 2012
We experimentally investigate and characterize the improvement in thresholding capability of a compact highly Ge-doped nonlinear interferometer-based all-optical thresholder using optical offset spectral filtering. The thresholder we study has an in-loop
Nicole S. Rafidi   +6 more
doaj   +1 more source

Novel layered 2D materials for ultrafast photonics

open access: yesNanophotonics, 2020
A range of new 2D materials have recently been reported, including topological insulators, transition-metal dichalcogenides, black phosphorus, MXenes, and metal-organic frameworks, which have demonstrated high optical nonlinearity and Pauli blocking for ...
Li Shi   +4 more
doaj   +1 more source

Integrated Optics: a Report on the 2nd OSA Topical Meeting [PDF]

open access: yes, 1975
This report surveys the papers presented at the 2nd OSA Topical Meeting on Integrated Optics, which was held 21–24 January 1974 in New Orleans ...
Conwell, E. M.   +6 more
core   +1 more source

Numerical Investigation of Natural Light Transmission Through Fiber Optics

open access: yesEnergies
Fiber optics is a cutting-edge technology with boundless potential for transmitting natural light inside buildings. Imaging Solar concentrators are very efficient in focusing light within the approximate numerical aperture of fiber optics.
Taher Maatallah   +4 more
doaj   +1 more source

Broadband Optical Frequency Comb Generation With Flexible Frequency Spacing and Center Wavelength

open access: yesIEEE Photonics Journal, 2018
A broadband optical frequency comb with a flexible frequency spacing and a center wavelength is proposed and experimentally demonstrated. The proposed scheme consists of a single continuous-wave laser, cascaded Mach–Zehnder modulator (MZM) and ...
Siyuan Yu, Fangdi Bao, Hao Hu
doaj   +1 more source

An Undersampling Communication System Based on Compressive Sensing and In-Fiber Grating

open access: yesIEEE Photonics Journal, 2021
An undersampling free-space optical (FSO) communication system based on compressive sensing (CS) and in-fiber grating is proposed. Our proposal drastically mitigates the data scale unfavorable issue and reduces the great amount of required data.
Guoqing Wang   +9 more
doaj   +1 more source

Contribution of speckle noise in near-infrared spectroscopy measurements [PDF]

open access: yes, 2019
Near-infrared spectroscopy (NIRS) is widely used in biomedical optics with applications ranging from basic science, such as in functional neuroimaging, to clinical, as in pulse oximetry.
Boas, David A.   +5 more
core   +1 more source

3D printed near-infrared high-numerical aperture achromatic metalens

open access: yesiScience
Summary: Traditional optical Fresnel microlenses have limitations such as large size, limited optical quality for imaging, and low focusing efficiency in achromatic lenses with high NA.
Heming Wei   +7 more
doaj   +1 more source

Scalable fiber integrated source for higher-dimensional path-entangled photonic quNits

open access: yes, 2012
Integrated photonic circuits offer the possibility for complex quantum optical experiments in higher-dimensional photonic systems. However, the advantages of integration and scalability can only be fully utilized with the availability of a source for ...
Fickler, Robert   +5 more
core   +1 more source

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