Results 131 to 140 of about 5,482 (285)

Fiber optical parametric amplification of optical combs for enhanced performance and functionality

We demonstrate the inherent suitability of fiber optical parametric amplifiers (FOPAs) to the amplification of optical combs, combining gain, spectral shaping, frequency translation, effective spectral broadening and low noise ...
Petropoulos, P., Richardson, D.J., Kakande, J.   +2 more
core  

Mid-infrared Optical Frequency Combs Based On Difference Frequency Generation For Dual-comb Spectroscopy

, 2016
Dual optical frequency combs at 2.8-3.4 μm with powers >210 mW were produced with femtosecond fiber-lasers and difference frequency generation. Interferograms between the combs have been demonstrated as a step towards mid-infrared dual-comb spectroscopy.

core   +1 more source

Wavelength and Full‐Polarization Encrypted Orbital Angular Momentum Meta‐Holography

Laser &Photonics Reviews, EarlyView.
By multiplexing three independent degrees of freedom of light, a single‐layer geometric‐phase metasurface encrypts 24 distinct holographic images across 3 wavelengths, 12 pairs of orthogonal polarizations, and 4 OAM channels, taking advantage of axial chromatic dispersion to reconstruct the color images at the same plane. ABSTRACT Multiplexing multiple
Yue Han, Mingna Xun, Yuqing He, Sheng Ye, Weiping Wan, Yan Li   +5 more
wiley   +1 more source

Precision mid-infrared frequency combs and spectroscopic applications

, 2013
The combination of frequency combs and quantum cascade lasers is opening new opportunities in the field of precision spectroscopy in the mid-infrared.
MARANGONI, MARCO ANDREA, MarangoniM, A. Gambetta, M. Marangoni, CASTRILLO, Antonio, Gatti D, P. Laporta, Galzerano G, Gambetta A, GATTI, DAVIDE, SALA, TOMMASO, LAPORTA, PAOLO, GIANFRANI, Livio, A. Castrillo, Laporta P, G. Galzerano, D. Gatti, Sala T, T. Sala, GAMBETTA, ALESSIO, GALZERANO, GIANLUCA, L. Gianfrani   +21 more
core   +1 more source

Metasurface‐Based Polarization‐Controlled Generation of 128‐Dimensional Vector Vortex Combs

Laser &Photonics Reviews, EarlyView.
The generation and continuous control of 128‐dimensional vector vortex combs using a single metasurface is reported. This work creates a class of structured light that uniquely integrates ultrahigh dimensionality with vector properties, and represents a crucial step toward on‐chip, reconfigurable generators for ultrahigh‐dimensional vector structured ...
Jiaqi Wang, Wenxi Wang, Wen Chen
wiley   +1 more source

Efficient microresonator frequency combs

The rapid development of optical frequency combs from their table-top origins towards chip-scale platforms has opened up exciting possibilities for comb functionalities outside laboratories. Enhanced nonlinear processes in microresonators have emerged as
Victor Torres-Company, Hu, Yaowen,, Vahala, Kerry,, Yaowen Hu, Qi-Fan Yang, Torres Company, Victor,, Kerry Vahala, Yang, Qi-Fan,   +7 more
core   +1 more source

Dual-frequency comb in fiber Fabry–Perot resonator

APL Photonics
This paper presents a novel approach to dual-frequency comb generation utilizing a single fiber Fabry–Perot resonator, advancing the implementation of these sources in fiber-based systems. Dual-comb applications such as spectroscopy, ranging, and imaging,
Thomas Bunel, Debanuj Chatterjee, Julien Lumeau, Antonin Moreau, Matteo Conforti, Arnaud Mussot   +5 more
doaj   +1 more source

Comb‐Driven Coherent Optical Transmitter for Scalable DWDM Interconnects

Laser &Photonics Reviews, EarlyView.
A comb‐driven coherent optical transmitter on a Si/SiN platform enables scalable DWDM interconnects by integrating ultra‐compact microring‐assisted modulators and interleavers. High‐baud coherent signaling achieves 400 Gb/s per wavelength and >$>$1 Tb/s multi‐channel transmission, with projected >$>$10 Tb/s per fiber, offering a path toward energy ...
Alireza Geravand, Erwan Weckenmann, Jean‐Michel Vallée, Farshid Shateri, Zibo Zheng, Simon Levasseur, Bo Yang, Jiajian Chen, Ting Wang, Zihao Wang, Leslie A. Rusch, Wei Shi   +11 more
wiley   +1 more source

Integrated lithium niobate optical frequency combs

Optical frequency combs have revolutionized precision measurement and spectroscopy by directly linking the optical and radio frequency parts of the electromagnetic spectrum.
Balčytis,, A., Nguyen, T., Mitchell, A.M., Ren, G., Mitchell, T., Boes, A.   +5 more
core   +1 more source

Epitaxial Integration of III–V Membrane Photodetectors With Lateral p–i–n Junctions on the Silicon‐On‐Insulator Waveguide Platform

Laser &Photonics Reviews, EarlyView.
Epitaxial growth forms III–V membranes directly atop the silicon waveguide layer on SOI, while in‐plane in situ doping defines lateral p–i–n InP/InGaAs junctions in a single growth step. The membrane photodetectors achieve 50 Gb/s NRZ‐OOK operation.
Zhao Yan, Yifu Chen, Martin Ebert, Ka Ming Wong, Wenjie Wang, Tim Grieb, Florian F. Krause, Andreas Rosenauer, Graham T. Reed, David J. Thomson, Qiang Li   +10 more
wiley   +1 more source