Results 21 to 30 of about 14,209,054 (299)

High power cladding-pumped Raman fiber laser with true single-mode output at 1660 nm

, 2006
We report a 10 W continuous-wave cladding-pump Raman fiber laser with single-mode output at 1660 nm pumped by a high-power Er:Yb fiber amplifier. The laser threshold was 6.5 W and its slope efficiency was 67%
Jeong, Y., M. Ibsen, J. Nilsson, Nilsson, J., Codemard, C.A., Y. Jeong, Dupriez, P., Ibsen, M., C.A. Codemard, P. Dupriez, Sahu, J.K., J.K. Sahu   +11 more
core   +2 more sources

Power-over-Fiber with Simultaneous Transmission of Optical Carrier for a High Frequency Analog Signal over Standard Single-Mode Fiber

Photonics, 2022
Efficient simultaneous transmission of light with a power of more than 2 W at a wavelength of 976 nm and an optical carrier for transmitting a high-frequency analog signal at a wavelength of 1550 nm over a distance of 1 km over a standard single-mode ...
Andrei Varlamov, Peter Agruzov, Mikhail Parfenov, Aleksandr Tronev, Igor Ilichev, Anna Usikova, Aleksandr Shamrai   +6 more
doaj   +1 more source

Compact high-power tunable three-level operation of double cladding Nd-doped fiber laser [PDF]

, 2005
We present a compact high-power continuous-wave tunable neodymium-doped double cladding fiber laser operating on three-level 4F3/2 - 4I9/2 transition with a maximum output power up to 810 mW.
Nilsson, J., Fu, L.B., Ibsen, M., Richardson, D.J., Grudinin, A.B., Payne, D.N.   +5 more
core   +1 more source

321W average power, 1GHz, 20ps 1060nm pulsed fiber MOPA source [PDF]

, 2005
Pulses from a gain-switched laser diode were amplified in a fiber MOPA system to produce in excess of 320W of average power in 20ps pulses at 1GHz repetition rate at ...
Jeong, Y., Hickey, L.M.B., Nilsson, J., Dupriez, P., Ibsen, M., Piper, A., Richardson, D.J., Malinowski, A., Sahu, J.K., Zervas, M.N.   +9 more
core   +2 more sources

Welding with high power fiber lasers - A preliminary study. [PDF]

, 2007
The new generation of high power fiber lasers presents several benefits for industrial purposes, namely high power with low beam divergence, flexible beam delivery, low maintenance costs, high efficiency and compact size.
Costa, A., Miranda, R., Kong, C. J., Quintino, Luísa, Yapp, David, Kumar, Vinod   +5 more
core   +1 more source

Statistical Distribution of EVM Measurements for Direct-Modulation Radio-Over-Fiber Links Transporting OFDM Signals [PDF]

, 2013
The effect of distortion on the error vector magnitude (EVM) performance of orthogonal frequency-division multiplexing (OFDM) signals with different numbers of subcarriers and the connection to the peak-to-average power ratio (PAPR) of such signals is ...
Nkansah, Anthony, Gomes, Nathan J., Wake, David, Assimakopoulos, Philippos   +3 more
core   +1 more source

Optically Powered Remote Units for Radio-Over-Fiber Systems [PDF]

Journal of Lightwave Technology, 2008
Optically powered radio-over-fiber remote units have been designed and constructed for distributed antenna system applications using separate fibers for power and signal transmission. The feasibility of this approach has been investigated through a series of transmission measurements, based on the IEEE 802.11g wireless local area networking standard at
Wake, D., Nkansah, A., Gomes, N.J., Lethien, C., Sion, C., Vilcot, Jean-Pierre   +5 more
openaire   +1 more source

High average power, high energy, femto-second fiber chirped pulse amplification system [PDF]

, 2007
We have demonstrated an Yb-fiber laser system incorporating a CFBG stretcher, bandwidth optimised amplifiers and dielectric grating compressor. The system produced 135 W average power with pulse energy of 13.5 µJ.
M. Ibsen, Dawson, J.W., Ibsen, M., Piper, A., Richardson, D.J., Malinowski, A., C. P. J. Barty, A. Piper, C. W. Siders, J. A. Britten, Siders, C.W., Barty, C.P.J., J. W. Dawson, Price, J.H.V., J. H. V. Price, D. J. Richardson, He, F., F. He, A. Malinowski, Britten, J.A.   +19 more
core   +2 more sources

Onset of Quantum-Confined Stark Effects in Multijunction Photovoltaic Laser Power Converters Designed with Thin Subcells

Photonics, 2023
Photovoltaic multijunction power-converting III–V semiconductor devices generate electrical power from the optical energy of laser beams. They exhibit conversion efficiencies reaching values greater than 60% and 50% for the GaAs and the InP material ...
Simon Fafard, Denis Masson
doaj   +1 more source

Erbium:ytterbium co-doped large-core fiber laser with 297W continuous-wave output power [PDF]

, 2007
We have demonstrated a high-power and high-efficiency erbium:ytterbium (Er:Yb) co-doped fiber laser that produces 297 W of continuous-wave output at 1567 nm.
Nilsson, J., Jayanta K. Sahu, Mike Lovelady, Piper, A., Johan Nilsson, David N. Payne, Yoo, S., R. Horley, Andy Piper, Payne, D.N., Lovelady, M., Christophe A. Codemard, Jeong, Y., Hickey, L.M.B., Andrew Harker, Yoonchan Jeong, Louise Hickey, Turner, P.W., Horley, R., P. W. Turner, Codemard, Christophe, Harker, A.T., Sahu, J.K., Seongwoo Yoo   +23 more
core   +1 more source