Results 71 to 80 of about 3,808 (215)

Full‐Space Spin‐Controlled Four‐Channel Metalens With Equal Power Distribution and Broad Bandwidth

open access: yesLaser &Photonics Reviews, EarlyView.
In article xxxxx, Alex M. H. Wong and co‐authors propose a multifunctional full‐space metalens supporting power‐efficient, broadband operation for four spin‐controlled output channels. The metalens separates an incoming wave into four equi‐power, spin‐decoupled and function‐decoupled waves (two transmitted and two reflected).
Xiaoluo He   +3 more
wiley   +1 more source

Optically Multiplexed Systems: Wavelength Division Multiplexing

open access: yes, 2019
Meena Dasan   +4 more
openaire   +3 more sources

Polarization‐Stable Wavelength‐Tunable Single‐Mode Vertical‐Cavity Surface‐Emitting Lasers with a Monolithic High‐Refractive‐Index‐Contrast Grating Top Coupling Mirror

open access: yesLaser &Photonics Reviews, EarlyView.
The study presents the latest results on single‐mode VCSELs with record current induced wavelength tuning using a grating structure as part of the top coupling mirror. The grating structure is monolithically integrated using only one fabrication layer and provides mono linearly polarized emission as well as supreme side‐mode suppression such that ...
Niels Heermeier   +6 more
wiley   +1 more source

A new material platform of Si photonics for implementing architecture of dense wavelength division multiplexing on Si bulk wafer. [PDF]

open access: yesSci Technol Adv Mater, 2017
Zhang Z   +9 more
europepmc   +1 more source

On‐Chip Active High‐Q Slow Light Topological Cavities

open access: yesLaser &Photonics Reviews, EarlyView.
A slow light topological cavity is presented, where the light confinement and the quality (Q) factor are controlled through engineered dispersion of the slow light waveguide mode and its group velocity, introducing a new degree of freedom to design high‐Q photonic cavities.
Xin Zhao   +8 more
wiley   +1 more source

Mid‐infrared Frequency‐Swept Laser at 50 MScans/s Via Frequency Down‐Conversion of Time‐Stretched Near‐Infrared Pulses

open access: yesLaser &Photonics Reviews, EarlyView.
A mid‐infrared frequency‐swept source operating is presented at 50 MScans s−1 using frequency down‐conversion of time‐stretched 1.5‐µm pulses generated from an Er‐doped mode‐locked fiber laser. The developed source enables high‐resolution gas‐phase MIR spectroscopy with a bandwidth of 15 cm−1 and a resolution of 0.086 cm−1 at a measurement rate of 50 ...
Makoto Shoshin   +4 more
wiley   +1 more source

Wavelength-Division-Multiplexing Transmission Systems

open access: yesThe Review of Laser Engineering, 1996
Karuhiro Oda, Hiromu Toba
openaire   +3 more sources

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