Zobrazeno 1 - 10
of 23
pro vyhledávání: '"Daniel J. Creeden"'
Autor:
Ivaylo Nikolov, Peyman Ahmadi, Vadim Mokan, Qi-Ze Shu, Daniel Aschaffenburg, Mitchell Woody Underwood, Luis A. Spinelli, John D. Minelly, Daniel J. Creeden, Andrea Caprara
Publikováno v:
Nonlinear Frequency Generation and Conversion: Materials and Devices XIX.
We present the development of a high-power laser source operating at 532 nm produced by frequency doubling a Ybdoped fiber amplifier. The fiber amplifier has a multistage design, and uses large mode area Yb-doped fibers as the gain medium to produce
Autor:
Joshua Galipeau, Mitchell Underwood, David Hosmer, Ronald Basque, Tony Tero, Chris Ebert, David Paquette, Tiffanie G. D'Alberto, Jill Sears, Daniel J. Creeden
Publikováno v:
Laser Technology for Defense and Security XIV.
Coherent | Nufern has a long history of high power Yb-doped fiber amplifier and component development. This ranges from amplifiers in the >1.5kW regime up to demonstrations of >3kW output power. In this paper, we discuss our latest advancements in th
Autor:
Julia Limongelli, Scott D. Setzler, Daniel J. Creeden, Jon Blanchard, Adam J. Marcinuk, Benjamin R. Johnson
Publikováno v:
Components and Packaging for Laser Systems III.
We have developed a packaged fiber amplifier configuration that allows for nearly two orders of magnitude of pulse width adjustment from 1ns to >800ns. This has been developed for both the 1-micron and 1.55-micron spectral regions. Our 1.55-micron fi
Publikováno v:
SPIE Proceedings.
We have recently demonstrated an Er:Yb fiber amplifier pumped off-peak at 940 nm which achieved 50.5% slope efficiency compared to 40.2% slope efficiency when pumped on-peak at 976 nm, the typical pumping wavelength for Er:Yb fiber. To further unders
Autor:
Scott D. Setzler, Benjamin R. Johnson, Daniel J. Creeden, Peter A. Budni, Charles Ibach, Chris J. Willis, M.L. Lemons, James P. Zona, Adam J. Marcinuk, Casey W. Jones, James Sweeney
Publikováno v:
Components and Packaging for Laser Systems II.
High power continuous and pulsed fiber lasers and amplifiers have become more prevalent in laser systems over the last ten years. In fielding such systems, strong environmental and operational factors drive the packaging of the components. These incl
Publikováno v:
SPIE Proceedings.
Compact, high power blue light in the 470-490nm region is difficult to generate due to the lack of laser sources which are easily convertible (through parametric processes) to those wavelengths. By using a pulsed Tm-doped fiber laser as a pump source
Publikováno v:
SPIE Proceedings.
High power fiber lasers/amplifiers in the 1550nm spectral region have not scaled as rapidly as Yb-, Tm-, or Ho-doped fibers. This is primarily due to the low gain of the erbium ion. To overcome the low pump absorption, Yb is typically added as a sens
Autor:
Jon Blanchard, Daniel J. Creeden, Benjamin R. Johnson, Herman Pretorius, Scott D. Setzler, Julia Limongelli
Publikováno v:
SPIE Proceedings.
We compare large mode area (LMA) and single-mode (SM) double-clad fiber geometries for use in high power 1908nm fiber lasers. With a simple end-pumped architecture, we have generated 100W of 1908nm power with LMA fiber at 40% optical efficiency and 1
Autor:
Scott D. Setzler, Leonard A. Pomeranz, Peter G. Schunemann, Katherine J. Snell, Daniel J. Creeden
Publikováno v:
Lasers Congress 2016 (ASSL, LSC, LAC).
We report what we believe is the first demonstration of nanosecond parametric generation and amplification in Op-GaP, producing 8pm light when pumped at 1.55pm. We also examine its temperature dependence in the long-wave infrared region.
Autor:
John C. McCarthy, Peter G. Schunemann, Timothy Southward, Daniel J. Creeden, Evan P. Chicklis, Peter A. Ketteridge, Webster Dove, James J. Komiak
Publikováno v:
IEEE Journal of Selected Topics in Quantum Electronics. 13:732-737
We have demonstrated a novel terahertz source based on dual-wavelength amplification in polarization maintaining Yb- doped fiber and frequency mixing in a zinc germanium phosphide (ZGP) crystal. The system consists of two orthogonally polarized signa