Results 101 to 110 of about 378,310 (219)
InfoMat, EarlyView.Layer‐controlled two‐dimensional perylene‐derivative molecular crystals grow by van der Waals vapor‐phase epitaxy and show near‐unity photoluminescence quantum yields. In hybrid structures with TMDCs, the carrier relaxation can be tuned from charge transfer to Förster resonance energy transfer.
Huijuan Zhao +12 more
wiley +1 more source
1 W Single‐Mode Large‐Area Edge‐Emitting Laser via Non‐Hermitian Spatial Mode Filtering
Laser &Photonics Reviews, EarlyView.We demonstrate a non‐Hermitian spatial mode filtering approach for achieving high‐power single‐mode operation in large‐area edge‐emitting laser diodes. By symmetrically coupling passive filter arrays to the main lasing waveguide, higher‐order transverse modes are effectively suppressed while preserving the fundamental mode.
Ece Karabey +4 more
wiley +1 more source
Laser &Photonics Reviews, EarlyView.Chip‐based frequency combs are usually pumped from telecom wavelengths, far from the visible. This work instead pumps close to the visible with a Ti:sapphire laser ‐ the source behind the original optical frequency combs and now becoming chip‐integrable‐ and lets silicon‐nitride waveguides convert it into efficient, octave‐spanning visible‐to‐infrared ...
Abdullah Alabbadi +5 more
wiley +1 more source
A polarisation maintaining fibre Bragg grating interrogation system for multi- axis strain sensing [PDF]
, 2002 Fibre Bragg gratings (FBGs) written into polarisation maintaining (PM) fibres have been employed for multi-axis strain and temperature sensing. In this paper we report the development of a FBG interrogation system that is capable of detecting ...
Steven E. Staines +7 more
core +1 more source
Laser &Photonics Reviews, EarlyView.Room‐temperature lower‐polariton‐like lasing is realized in an InGaN/GaN thin‐film ridge cavity with lateral distributed Bragg reflectors. Near‐field optical microscopy distinguishes the transverse side‐DBR‐confined mode from a longitudinal photon‐like mode, while simulations reproduce their spatial profiles.
Wai Yuen Fu +2 more
wiley +1 more source
Laser &Photonics Reviews, EarlyView.Micro‐transfer printing enables GaAs and InP gain materials to be integrated on a commercial silicon nitride photonic platform. The resulting chip supports O‐ and C‐band comb and single‐mode lasers, demonstrating a scalable route toward multi‐material, multi‐wavelength, and multifunctional integrated light sources.
Dongbo Wang +12 more
wiley +1 more source
Applications of Fibre Bragg Gratings to Telecommunications
Bragg Gratings, Photosensitivity, and Poling in Glass Waveguides, 1999 A modern telecommunications network may utilise many tens of wavelengths simultaneously on a single fibre, with individual channel bit rates of 10Gb/s or above.
openaire +2 more sources
Laser &Photonics Reviews, EarlyView.Electrically contacted circular Bragg grating resonators incorporating InGaAs quantum dots directly grown on silicon enable bright, telecom O‐band single‐photon emission with wide‐range electrical tuning. A record quantum‐confined Stark shift of 16 nm is combined with high photon extraction efficiency, excellent single‐photon purity > 99.9%, and robust
Sarthak Tripathi +7 more
wiley +1 more source
Advanced fibre Bragg gratings for high performance dispersion compensation in DWDM systems
, 2000 The increasing application of DWDM transmission schemes with bit rates of 10 Gb/s and 50 GHz channel spacing places a strict requirement on dispersion management.
Ramirez, C. +3 more
core +1 more source
Fibre Bragg gratings for dispersion compensation [PDF]
, 1997 Broadband chirped fibre gratings allow the upgrade of the existing non-dispersion shifted fibre network to high data rate operation within the 1.55µm low-loss window. The design, fabrication, performance and application of these devices is covered.
Laming, R.I. +6 more
openaire