Results 291 to 300 of about 1,804,643 (357)
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High Spatial Density 6-Mode 7-Core Fiber Amplifier for L-Band Operation
Journal of Lightwave Technology, 2020We present a high spatial density space division multiplexed fiber amplifier (i.e., 6-mode 7-core multicore fiber amplifier) supporting 42 spatial channels. A high average modal gain of 23.1 dB is obtained in the L-band with an average differential modal
Yongmin Jung +2 more
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1.1 kW, beam-combinable thulium doped all-fiber amplifier
LASE, 2021A 1.1 kW CW fiber amplifier emitting at 1.95µm and phase modulated at 5 GHz, with 51% optical conversion efficiency and near diffraction limited beam quality ...
B. Anderson, J. Solomon, A. Flores
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7.1 kW coherent beam combining system based on a seven-channel fiber amplifier array
, 2021Coherently combining of seven-channel narrow-linewidth, linear-polarized, kW-level power all-fiber amplifiers has been successfully demonstrated by using the stochastic parallel gradient descent (SPGD) algorithm.
P. Ma +12 more
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Bidirectional fiber amplifiers
IEEE Photonics Technology Letters, 1992The authors propose new bidirectional erbium-doped fiber amplifier repeaters for bidirectional fiber networks and OTDR fault detection. At each repeater the counterpropagating signals are separated, amplified separately, and then recombined. Signal separation is done by directional couplers with intrinsic 6-dB coupling loss, or by optical circulators ...
Barnard, C.W. +2 more
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Fiber-amplifier-enhanced resonant photoacoustic sensor for sub-ppb level acetylene detection
Sensors and Actuators A: Physical, 2018Zhenfeng Gong, Qingxu Yu
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Journal of optical communications, 2019
This paper has simulated the pump laser automatic signal control for erbium-doped fiber amplifier gain, noise figure, and output spectral power. Signal gain and noise figure are deeply studied in relation to laser pump power variations at operating ...
I. Amiri, A. Rashed, P. Yupapin
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This paper has simulated the pump laser automatic signal control for erbium-doped fiber amplifier gain, noise figure, and output spectral power. Signal gain and noise figure are deeply studied in relation to laser pump power variations at operating ...
I. Amiri, A. Rashed, P. Yupapin
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Applied Optics, 1990
We examine the theory of optical amplification in long span single-mode fibers which have low levels of erbium dopant. When pumped from the transmitter end at a suitable wavelength, lightly doped fibers can form a distributed amplifier, capable of overcoming transmission losses due to the intrinsic attenuation of the host glass at the signal wavelength.
P, Urquhart, T J, Whitley
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We examine the theory of optical amplification in long span single-mode fibers which have low levels of erbium dopant. When pumped from the transmitter end at a suitable wavelength, lightly doped fibers can form a distributed amplifier, capable of overcoming transmission losses due to the intrinsic attenuation of the host glass at the signal wavelength.
P, Urquhart, T J, Whitley
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Optical Fiber Communications Conference and Exhibition, 2019
We developed a simple silica-based BDFA with 80nm 6-dB gain-bandwidth flexibly centred within 1305–1325nm, and parameters comparable to EDFAs. The amplifier can extend 400GBASE-LR8 transmission (8×26.6 Gbaud/s PAM-4 channels) beyond 50 km of G.652 fiber.
V. Mikhailov +16 more
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We developed a simple silica-based BDFA with 80nm 6-dB gain-bandwidth flexibly centred within 1305–1325nm, and parameters comparable to EDFAs. The amplifier can extend 400GBASE-LR8 transmission (8×26.6 Gbaud/s PAM-4 channels) beyond 50 km of G.652 fiber.
V. Mikhailov +16 more
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Theoretical investigation on Raman Fiber Amplifiers
Asia Communications and Photonics Conference and Exhibition, 2010The characterization of RFAs with bi-directional Raman pumped or co-propagating Raman pumped is studied. The effection to RFAs for pump power, initial signal power and fiber length is analyzed, which is to optimize and improve gain of RFASSs, so as to improve the performance of the amplifier.
Shuhua Li +3 more
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Fiber Amplifiers for SDM Systems
Optical Fiber Communication Conference/National Fiber Optic Engineers Conference 2013, 2013Major advances made in both MCF and MMF amplification is presented here, including scaling up to 6 channels for MMF and up to 7 channels for MCF. EDFA and Raman based approaches and TDFA for PBGF are also demonstrated.
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