Results 161 to 170 of about 4,752 (200)

Mode shaping in multicore fibers

Optics Letters, 2007
We propose a novel multicore fiber design strategy for obtaining a flat in-phase supermode that optimizes utilization of the active medium inversion in the multiple cores. The spatially flat supermode is achieved by engineering the fiber so that the total mutual coupling between neighboring active cores is equal.
Krishna Mohan, Gundu, Miroslav, Kolesik, Jerome V, Moloney   +2 more
openaire   +2 more sources

1.2-kW all-fiber Yb-doped multicore fiber amplifier

Optics Letters, 2023
We have demonstrated a record-high 1.2 kW, all-fiber multicore amplifier using a six-core single-mode Yb-doped fiber and a multicore pump-signal combiner (PSC). The output power is limited by the pump power of 1.9 kW. We have developed double-clad six-core fibers and PSCs for this demonstration.
Luis F. Ortega, Thomas Feigenson, Yin Wan Tam, Peter Reeves-Hall, Tso Yee Fan, Michael Messerly, Charles X. Yu, Kyung-Han Hong   +7 more
openaire   +2 more sources

Multicore Optical Fiber Components

SPIE Proceedings, 1987
The paper deals with Multicore Optical Fibres /MOFs/. Such fibres have two or more single mode or multimode or simultaneously both kinds of cores distributed in the cladding. The individual cores could be naturally coupled or not. We have made a few families of microoptical components of these fibres. These components have been used for construction of
Ryszard S. Romaniuk, Jan Dorosz
openaire   +1 more source

Multicore fiber with rectangular cross-section

Optics Letters, 2014
We have fabricated, to our knowledge, the first rectangular cross-section multicore fiber with eight cores arranged in a line. We have shown that the rectangular cross-section remains practically unchanged during the fiber-drawing process. The heterogeneous version of the proposed fiber design could be beneficial for crosstalk reduction because of the ...
O N, Egorova, S L, Semjonov, A K, Senatorov, M Y, Salganskii, A V, Koklyushkin, V N, Nazarov, A E, Korolev, D V, Kuksenkov, Ming-Jun, Li, E M, Dianov   +9 more
openaire   +2 more sources

Miniature multicore optical fiber vibration sensor

Optics Letters, 2017
We demonstrate a compact and versatile interferometric vibration sensor that operates in reflection mode. To build the device, a short segment of symmetric strongly coupled multicore optical fiber (MCF) is fusion spliced to a single-mode optical fiber (SMF). One end of the MCF segment is cleaved and placed in a cantilever position.
Villatoro, Joel, Antonio-Lopez, Enrique, Schülzgen, Axel, Amezcua-Correa, Rodrigo   +3 more
openaire   +3 more sources

Fiber-optic delay line using multicore fiber

Bulletin of the Lebedev Physics Institute, 2017
A fiber-optic delay line based on a multicore optical fiber is fabricated for the first time. Due to the optical pulse sequential passage over all cores, the time delay of the optical signal of 45.0 μs is obtained at the optical fiber length of only 1300 m. The use of the seven-core optical fiber allows a sevenfold reduction in the used fiber length in
O. N. Egorova, M. S. Astapovich, M. E. Belkin, S. L. Semenov   +3 more
openaire   +1 more source

Microstructured and multicore fibers and fiber lasers

2006 Optical Fiber Communication Conference and the National Fiber Optic Engineers Conference, 2006
Microstructured and multi-core fiber lasers were fabricated that have produced more than 1.3 W/cm at 1.5 /spl mu/m. Near 2 W single frequency, single-transverse-mode output was demonstrated.
N. Peyghambarian, M. Fallahi, H. Li, L. Li, A. Mafi, M. Mansuripur, J.V. Moloney, R.-A. Norwood, D. Panasenko, A. Polynkin, P. Polynkin, T. Qiu, A. Schulzgen, V.-L. Temyanko, J. Wu, S. Jiang, A. Chavez, J. Geng, C. Spiegelberg   +18 more
openaire   +1 more source

Coupling characteristics between single-core fiber and multicore fiber

Optics Letters, 2006
A simple method for coupling between a single-core single-mode fiber and a multicore single-mode fiber is proposed and demonstrated. An effective coupling approach is based on a process of standard splicing and tapering between the single-core single-mode fiber and the multicore single-mode fiber.
Libo, Yuan, Zhihai, Liu, Jun, Yang
openaire   +2 more sources

Multicore erbium doped fiber amplifiers

SPIE Proceedings, 2016
ABSTRACT We review recent progress of multi -core erbium -doped fiber amplifiers (MC -EDFA). We confirmed by demonstrating a core -pumped MC -EDFA that MC -EDFs have practical amplification characteristic s and core -to-core crosstalk . Three types of cladding -pumped MC -EDFAs are also reviewed , one uses free space optics, other uses a fiber b undled
Koichi Maeda, Yukihiro Tsuchida, Ryuichi Sugizaki, Hiroshi Matsuura   +3 more
openaire   +1 more source

Multicore fiber with ring structure

2013 IEEE Photonics Society Summer Topical Meeting Series, 2013
The characteristics of MCFs with one-ring structure are reviewed. The MCFs realize the number of cores larger than 10, suppressed crosstalk and enlarged Aeff under limited cladding diameter in terms of mechanical reliability.
K. Takenaga, S. Matsuo, K. Saitoh, M. Koshiba   +3 more
openaire   +1 more source