P
Peyman Ahmadi
Publications - 10
Citations - 133
Peyman Ahmadi is an academic researcher. The author has contributed to research in topics: Amplified spontaneous emission & Optical fiber. The author has an hindex of 5, co-authored 10 publications receiving 122 citations.
Papers
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Journal ArticleDOI
Low-spatial-coherence high-radiance broadband fiber source for speckle free imaging
TL;DR: The fiber ASE source provides a unique combination of high power per mode with both low spatial and low temporal coherence, making it an ideal source for full-field imaging and ranging applications.
Journal ArticleDOI
Low-spatial-coherence broadband fiber source for speckle free imaging
TL;DR: In this article, a fiber-based amplified spontaneous emission (ASE) source with low spatial coherence, low temporal coherence and high power per mode was designed and demonstrated for full field imaging and ranging applications.
Patent
Mode mixing optical fibers and methods and systems using the same
Clemence Jollivet,Kevin Farley,Jaroslaw Abramczyk,M. Conroy,Kanishka Tankala,Peyman Ahmadi,Eric Lim +6 more
TL;DR: In this paper, the authors present a mode mixing optical fiber that includes a core having a refractive index profile; and a cladding disposed about the core, which supports at least two (eg, at least five) guided modes at the wavelength.
Proceedings ArticleDOI
Generating kW laser light at 532 nm via second harmonic generation of a high power Yb-doped fiber amplifier
Peyman Ahmadi,Daniel J. Creeden,Daniel Aschaffenburg,Vadim Mokan,Mitchell Woody Underwood,Andrea Caprara,Qi-Ze Shu,Luis A. Spinelli,John D. Minelly,Ivaylo Nikolov +9 more
TL;DR: In this article, a high-power laser source operating at 532 nm produced by frequency doubling a Yb-doped fiber amplifier is presented, where the amplifier design is optimized to reduce non-linear effects, and operates at linewidths as narrow as 45 GHz.
Patent
Optical fibers, sources of optical radiation and methods for providing low-speckle optical radiation
TL;DR: In this paper, a rare earth-doped gain core with pump radiation having a pump wavelength and a pump core surrounding the gain core was presented, where the value M = 16R 2 (NA) 2 /λ 2 in which NA is the active optical fiber numerical aperture, and λ is the peak emitted wavelength, is at least 50 or at least 100.