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6. 10W single-mode Nd3+ fiber laser at 1428nm

Author

Khitrov, Victor, primary, Dawson, Jay W., primary, Kiani, Leily S., primary, Pax, Paul H., primary, Drachenberg, Derrek R., primary, Messerly, Michael J., primary, Crist, Robert P., primary, Schenkel, Nick, primary, and Cook, Matt, primary

Published
2018
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10. Fiber Laser Front Ends for High Energy, Short Pulse Lasers

Author

Dawson, Jay W, Liao Z. M, Mitchell S, Messerly M, Beach R., Phan, Henry, Dawson, Jay W., Siders, Craig W., Liao, Zhi, Mitchell, Scott, Messerly, Michael J., Jovanovic, Igor, Dawson, J, Phan H, Siders C, Beach R, Beach, Raymond J., Payne, Stephen A., Brown, Curtis, Barty, C. J., and Barty, C. P. J.

Subjects
Physics::Optics
Abstract

We are developing an all fiber laser system optimized for providing input pulses for short pulse (1-10ps), high energy ({approx}1kJ) glass laser systems. Fiber lasers are ideal solutions for these systems as they are highly reliable and once constructed they can be operated with ease. Furthermore, they offer an additional benefit of significantly reduced footprint. In most labs containing equivalent bulk laser systems, the system occupies two 4'x8' tables and would consist of 10's if not a 100 of optics which would need to be individually aligned and maintained. The design requirements for this application are very different those commonly seen in fiber lasers. High energy lasers often have low repetition rates (as low as one pulse every few hours) and thus high average power and efficiency are of little practical value. What is of high value is pulse energy, high signal to noise ratio (expressed as pre-pulse contrast), good beam quality, consistent output parameters and timing. Our system focuses on maximizing these parameters sometimes at the expense of efficient operation or average power. Our prototype system consists of a mode-locked fiber laser, a compressed pulse fiber amplifier, a ''pulse cleaner'', a chirped fiber Bragg grating, pulse selectors, a transport fiber system and a large flattened mode fiber amplifier. In our talk we will review the system in detail and present theoretical and experimental studies of critical components. We will also present experimental results from the integrated system.

Published
2010

14. High gain, high power Nd3+ fiber laser at 1427 nm

Author

Dawson, Jay W., primary, Pax, Paul H., additional, Allen, Graham S., additional, Drachenberg, Derrek R., additional, Khitrov, Victor V., additional, Kiani, Leily S., additional, Schenkel, Nick, additional, and Messerly, Michael J., additional

Published
2016
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16. Single and multiple frequency fiber lasers

Author

Dawson, Jay W., Dawson, Jay W., Dawson, Jay W., and Dawson, Jay W.

Abstract

NOTE: Text or symbols not renderable in plain ASCII are indicated by [...]. Abstract is included in .pdf document. Single frequency, low intensity noise, widely tunable lasers operating in the 1.5 [...]m region have potential applications in future wavelength division multiplexed optical communications systems, fiber sensor arrays and high resolution spectroscopic measurements. A single frequency fiber laser having these characteristics will be described in detail. The laser cavity contains an erbium doped fiber gain module, fiber isolators to ensure unidirectional travelling wave operation and two fiber Fabry-Perot filters acting in tandem, which provide broadband tunability (1530 nm -1560 nm) combined with stable single frequency operation. Shot noise limited operation of this laser has been observed at frequencies greater than 300 MHz. At lower frequencies (1-300 MHz) the intensity noise has been characterized in terms of sidemode suppression (> 60 dB of minimum sidemode suppression has been realized). Lower still (10 kHz - 1 MHz) the intensity noise is dominated by the laser's relaxation resonance (30 kHz @ 1 mW output, -105 dBc/Hz). The linewidth of this laser has been measured to be less than 4 kHz using a loss compensated recirculating delayed self-heterodyne interferometer (RDSHI). The RDSHI is an improvement over the standard delayed self-heterodyne interferometer in that the effective delay line can be increased by a factor of 30 over the standard method, increasing the resolution by a corresponding amount. The RDSHI also allows measurement of the short term frequency jitter of a laser. In order to reduce laser frequency jitter, the Pound-Drever technique was employed to lock the laser frequency to an external fiber Fabry-Perot. The same technique also permitted the internal mode selection filter to track the laser frequency, completely eliminating residual mode hopping due to thermal length changes of the laser cavity. Finally, fiber laser configurations

Published
1993

19. 10W single-mode Nd3fiber laser at 1428 nm

Author

Hartl, Ingmar, Carter, Adrian L., Khitrov, Victor V., Kiani, Leily S., Pax, Paul H., Drachenberg, Derrek R., Messerly, Michael J., Crist, Robert P., Schenkel, Nick, Cook, Matt, and Dawson, Jay W.

Published
2018
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20. Effect of Rayleigh-scattering distributed feedback on multiwavelength Raman fiber laser generation

Author

Dawson, Jay W., Honea, Eric C., El-Taher, A.E., Harper, P., Babin, S.A., Churkin, D.V., Podivilov, E.V., Ania-Castañón, J. D., Turitsyn, S.K., Dawson, Jay W., Honea, Eric C., El-Taher, A.E., Harper, P., Babin, S.A., Churkin, D.V., Podivilov, E.V., Ania-Castañón, J. D., and Turitsyn, S.K.

Abstract

We experimentally demonstrate a Raman fiber laser based on multiple point-action fiber Bragg grating (FBG) reflectors and distributed feedback via Rayleigh scattering in a ∼22 km long optical fiber. Twenty two lasing lines with spacing of ∼100 GHz (close to ITU grid) in C-band are generated at Watts power level. In contrast to the normal cavity with competition between laser lines, the random distributed feedback cavity exhibits highly stable multiwavelength generation with a power-equalized uniform distribution which is almost independent on power. The current set up showing the capability of generating Raman gain of about 100-nm wide giving the possibility of multiwavelength generation at different bands.

Published
2011

21. On the theory of the modulation instability in optical fiber and laser amplifiers

Author

Dawson, Jay W., Honea, Eric C., Rubenchik, Alexander M., Turitsyn, Sergei K., Fedoruk, Michail P., Dawson, Jay W., Honea, Eric C., Rubenchik, Alexander M., Turitsyn, Sergei K., and Fedoruk, Michail P.

Abstract

The modulation instability (MI) in optical fiber amplifiers and lasers with anomalous dispersion leads to CW beam breakup and the growth of multiple pulses. This can be both a detrimental effect, limiting the performance of amplifiers, and also an underlying physical mechanism in the operation of MI-based devices. Here we revisit the analytical theory of MI in fiber optical amplifiers. The results of the exact theory are compared with the previously used adiabatic approximation model, and the range of applicability of the latter is determined. The same technique is applicable to the study of spatial MI in solid state laser amplifiers and MI in non-uniform media.

Published
2011

22. Comparative numerical study of efficiency of energy deposition in femtosecond microfabrication with fundamental and second harmonics of Yb-doped fiber laser

Author

Dawson, Jay W., Honea, Eric C., Dostovalov, Alexandr, Babin, Sergey, Baregheh, Mandana, Dubov, Mykhaylo, Mezentsev, Vladimir, Dawson, Jay W., Honea, Eric C., Dostovalov, Alexandr, Babin, Sergey, Baregheh, Mandana, Dubov, Mykhaylo, and Mezentsev, Vladimir

Abstract

We present the results of comparative numerical study of energy deposition in single shot femtosecond laser inscription for fundamental and second harmonic of Yb-doped fiber laser. We have found that second harmonic is more efficient in absorbing energy which leads to lower inscription threshold. Hence this regime is more attractive for applications in femtosecond laser microfabrication.

Published
2011

26. High average power lasers for future particle accelerators

Author

Dawson, Jay W., primary, Crane, John K., additional, Messerly, Michael J., additional, Prantil, Matthew A., additional, Pax, Paul H., additional, Sridharan, Arun K., additional, Allen, Graham S., additional, Drachenberg, Derrek R., additional, Phan, Henry H., additional, Heebner, John E., additional, Ebbers, Christopher A., additional, Beach, Raymond J., additional, Hartouni, Edward P., additional, Siders, Craig W., additional, Spinka, Thomas M., additional, Barty, C. P. J., additional, Bayramian, Andrew J., additional, Haefner, Leon C., additional, Albert, Felicie, additional, Lowdermilk, W. Howard, additional, Rubenchik, Alexander M., additional, and Bonanno, Regina E., additional

Published
2013
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30. Pulsed Fiber Laser Development at LLNL

Author

Dawson, Jay W., primary, Messerly, Michael, additional, Prantil, Matthew, additional, Pax, Paul, additional, Sridharan, Arun, additional, Allen, Graham, additional, Heebner, John, additional, Siders, Craig, additional, and Barty, C. P. J., additional

Published
2012
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34. Advances in Energetic Short-Pulse Fiber Lasers

Author

Messerly, Michael J., primary, Dawson, Jay W., additional, Crane, John K., additional, Gibson, David J., additional, Haefner, Constantin, additional, Shverdin, Miroslav Y., additional, Phan, Henry H., additional, Siders, Craig W., additional, Barty, Christopher P. J., additional, and Prantil, Matthew A., additional

Published
2010
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35. Ultimate Power Limits of Optical Fibers

Author

Dawson, Jay W., primary, Messerly, Michael J., additional, Beach, Raymond J., additional, Shverdin, Miroslav Y., additional, Sridharan, Arun K., additional, Pax, Paul H., additional, Heebner, John E., additional, Siders, Craig W., additional, and Barty, C. P. J., additional

Published
2010
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39. Scaling limits of high average power fiber lasers

Author

Dawson, Jay W., primary, Messerly, Michael J., additional, Beach, Raymond J., additional, Shverdin, Miroslav Y., additional, Stappaerts, Eddy A., additional, Sridharan, Arun K., additional, Pax, Paul H., additional, Heebner, John E., additional, Siders, Craig W., additional, and Barty, C.P.J., additional

Published
2008
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43. Multi-watt 589nm fiber laser source

Author

Dawson, Jay W., primary, Drobshoff, Alex D., additional, Beach, Raymond J., additional, Messerly, Michael J., additional, Payne, Stephen A., additional, Brown, Aaron, additional, Pennington, Deanna M., additional, Bamford, Douglas J., additional, Sharpe, Scott J., additional, and Cook, David J., additional

Published
2006
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45. 469-nm fiber laser source

Author

Drobshoff, Alex, primary, Dawson, Jay W., additional, Pennington, Deanna M., additional, Payne, Stephen A., additional, Beach, Raymond, additional, and Taylor, Luke, additional

Published
2005
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48. Scalable 11W 938nm Nd3+ doped fiber laser

Author

Dawson, Jay W., primary, Beach, Raymond, additional, Drobshoff, Alex, additional, Liao, Zhi, additional, Pennington, Deanna M., additional, Payne, Stephen A., additional, Taylor, Luke, additional, Hackenberg, Wolfgang, additional, and Bonaccini, Domenico, additional

Published
2004
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49. High average power lasers for future particle accelerators.

Author

Dawson, Jay W., Crane, John K., Messerly, Michael J., Prantil, Matthew A., Pax, Paul H., Sridharan, Arun K., Allen, Graham S., Drachenberg, Derrek R., Phan, Henry H., Heebner, John E., Ebbers, Christopher A., Beach, Raymond J., Hartouni, Edward P., Siders, Craig W., Spinka, Thomas M., Barty, C. P. J., Bayramian, Andrew J., Haefner, Leon C., Albert, Felicie, and Lowdermilk, W. Howard

Subjects
*PARTICLE accelerators, *ELECTRON beams, *ATOMS, *PERFORMANCE evaluation, *ENERGY consumption, *ELECTRON scattering, *POTENTIAL theory (Physics)
Abstract

Lasers are of increasing interest to the accelerator community and include applications as diverse as stripping electrons from hydrogen atoms, sources for Compton scattering, efficient high repetition rate lasers for dielectric laser acceleration, peta-watt peak power lasers for laser wake field and high energy, short pulse lasers for proton and ion beam therapy. The laser requirements for these applications are briefly surveyed. State of the art of laser technologies with the potential to eventually meet those requirements are reviewed. These technologies include diode pumped solid state lasers (including cryogenic), fiber lasers, OPCPA based lasers and Ti:Sapphire lasers. Strengths and weakness of the various technologies are discussed along with the most important issues to address to get from the current state of the art to the performance needed for the accelerator applications. Efficiency issues are considered in detail as in most cases the system efficiency is a valuable indicator of the actual ability of a given technology to deliver the application requirements. [ABSTRACT FROM AUTHOR]

Published
2012
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50. Ribbon fiber with multiple antiguided phase-locked gain cores

Author

Beach, Raymond J., primary, Feit, Michael D., additional, Mitchell, Scott C., additional, Cutter, Kurt P., additional, Dawson, Jay W., additional, Payne, Stephen A., additional, Mead, Richard W., additional, Hayden, Joseph S., additional, Krashkevich, David, additional, and Alunni, David A., additional

Published
2003
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