Results 41 to 50 of about 2,670,244 (299)
Structure and propagation of modes of large mode area holey fibers
Optics Express, 2004 We report cross-section measurement and propagation measurement of modes of large mode area holey fibers using near-field scanning optical microscopy (NSOM). Mode profiles are measured at the fiber end face using a scanning optical fiber tip held 10 nm from the surface, and compared to theoretical models.
Gates, J.C. +5 more
openaire +4 more sources
Exploring the potential for cross-nesting structures in airport-choice analysis: A case-study of the Greater London area [PDF]
, 2006 The analysis of air-passengers’ choices of departure airport in multi-airport regions is a crucial component of transportation planning in many large metropolitan areas, and has been the topic of an increasing number of studies over recent years. In this
Hess, S., Polak, J.W.
core +1 more source
Large mode area photonic crystal fibre
Electronics Letters, 1998 The authors report the realisation of a new design for a large mode area monomode optical fibre. This photonic crystal fibre will guide only a single mode, no matter how large the fibre diameter, provided the shape is kept constant. This is demonstrated with a fibre which has a core diameter equal to approximately 50 free-space wavelengths.
Knight, J.C. +4 more
openaire +2 more sources
All Solid Multistep-Index Core Large Mode Area Single-Mode Fiber
IEEE Photonics JournalIn this paper, a large-mode-area (LMA) single-mode fiber based on multistep-index core structure is proposed. The multistep-index core increases the mode field area (MFA).
Yulai She +4 more
doaj +1 more source
Electrically pumped two-dimensional Bragg grating lasers [PDF]
, 2006 We demonstrate electrically pumped InGaAsP two-dimensional Bragg grating (2DBG) lasers with two line defects. The 2DBG structure uses a weak 2D index perturbation surface grating to control the optical modes in the plane of the wafer. Measurements of the
Choi, John M. +4 more
core +1 more source
Pediatric Blood &Cancer, EarlyView.ABSTRACT Surveillance imaging aims to detect tumour relapse before symptoms develop, but it's unclear whether earlier detection of relapse leads to better outcomes in children and young people (CYP) with medulloblastoma and ependymoma. This systematic review aims to identify relevant literature to determine the efficacy of surveillance magnetic ...
Lucy Shepherd +3 more
wiley +1 more source
20 kW Monolithic Fiber Amplifier With Directly Dual-Wavelength Laser Diodes Counter Pumping
IEEE Photonics JournalIn this study, we demonstrate a high-power ytterbium-doped fiber laser (YDFL) based on laser diodes (LDs) directly pumping scheme. Tandem pumping and LD direct pumping are two common schemes for generating high-brightness laser output in YDFL.
Xiangming Meng +10 more
doaj +1 more source
Bend-resistant octo-wing silica segmented cladding fiber with high index rings
Results in Physics, 2022 We have proposed a novel segmented cladding fiber (SCF) design and the bending effects were investigated in detail. The proposed SCF with large mode area properties has a uniform circular core and octo-wings of rods with higher refractive index than the ...
Marzieh Pournoury, Donghyun Kim
doaj +1 more source
Mid-infrared transmission properties of step index and large mode area ZnSe microstructured optical fibers [PDF]
, 2012 ZnSe microstructured fibers have been designed and fabricated using silica capillaries and an air-silica photonic band-gap optical fiber as high-pressure microfluidic templates for semiconductor growth via chemical fluid deposition.
Badding, J.V. +6 more
core +1 more source
Pediatric Blood &Cancer, EarlyView.ABSTRACT Background Psychological safety (PS) is essential for teamwork, communication, and patient safety in complex healthcare environments. In pediatric oncology, interprofessional collaboration occurs under high emotional and organizational demands. Low PS may increase stress, burnout, and adverse events.
Alexandros Rahn +4 more
wiley +1 more source