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  • 1
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    Flashlamp Pumped, Room Temperature, Nd:YAG Laser Operating at 0.946 Micrometers (1998)
    In:  CASI
    Details
    Publication Date: 2018-06-05
    Description: Room temperature operation of flashlamp pumped Nd:YAG at 0.946 micrometers was achieved with a laser rod having undoped ends. Performance was characterized and compared with 1.064 micrometer operation and other quasi four level lasers.
    Keywords: Lasers and Masers
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  • 2
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    Nd: LuLF: A New Nd Laser Material (1998)
    In:  CASI
    Details
    Publication Date: 2018-06-05
    Description: Nd:LuLF, a novel laser material isomorphic to YLF, has been grown and evaluated on both polarizations in a simple, wavelength selective resonator.
    Keywords: Lasers and Masers
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  • 3
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    Ho:Tm:Er:LuAG and Two Wavelength Oscillation (1997)
    In:  CASI
    Details
    Publication Date: 2018-06-02
    Description: Ho:Tm:Er:LuAG demonstrated simultaneous laser oscillation associated with two different transitions and different atoms. Two wavelength oscillation, or TWO, can be achieved in a single laser and single resonator. Moreover, the wavelength can be electronically controlled by varying the pump pulse length, Either the short wavelength, the Ho (5)1(sub 7) to (5)1(sub 8) transition at 2.1 microns, or the long wavelength, the Er (4)1(sub 11/2) to (4)1(sub 13/2) transition at 2.7 microns, or both wavelengths simultaneously can be produced without resorting to mechanical intervention. Consequently, a single laser system can easily switch between producing either of these useful wavelengths. Laser operation of both transitions has been characterized and is presented.
    Keywords: Lasers and Masers
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  • 4
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    Up Conversion Measurements in Er:YAG; Comparison with 1.6 Micrometer Laser Performance (2011)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: Up conversion significantly affects Er:YAG lasers. Measurements performed here for low Er concentration are significantly different than reported high Er concentration. The results obtained here are used to predict laser performance and are compared with experimental results.
    Keywords: Lasers and Masers
    Type: AIThB09 , NF1676L-12509 , Advances in Optical Materials (AIOM) Topical Meeting; Feb 16, 2011 - Feb 18, 2011; Istanbul; Turkey
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  • 5
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    Dual Wavelength Lasers (2010)
    In:  Other Sources
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    Publication Date: 2019-07-13
    Description: Dual wavelength lasers are discussed, covering fundamental aspects on the spectroscopy and laser dynamics of these systems. Results on Tm:Ho:Er:YAG dual wavelength laser action (Ho at 2.1 m and Er at 2.9 m) as well as Nd:YAG (1.06 and 1.3 m) are presented as examples of such dual wavelength systems. Dual wavelength lasers are not common, but there are criteria that govern their behavior. Based on experimental studies demonstrating simultaneous dual wavelength lasing, some general conclusions regarding the successful operation of multi-wavelength lasers can be made.
    Keywords: Lasers and Masers
    Type: LF99-9694 , Laser Physics (ISSN 1054-660X); 20; 3; 622-634
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  • 6
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    Controlling Second Harmonic Efficiency of Laser Beam Interactions (2011)
    In:  CASI
    Details
    Publication Date: 2019-08-28
    Description: A method is provided for controlling second harmonic efficiency of laser beam interactions. A laser system generates two laser beams (e.g., a laser beam with two polarizations) for incidence on a nonlinear crystal having a preferred direction of propagation. Prior to incidence on the crystal, the beams are optically processed based on the crystal's beam separation characteristics to thereby control a position in the crystal along the preferred direction of propagation at which the beams interact.
    Keywords: Lasers and Masers
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  • 7
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    Multiple-wavelength tunable laser (2010)
    In:  CASI
    Details
    Publication Date: 2019-08-28
    Description: A tunable laser includes dispersion optics for separating generated laser pulses into first and second wavelength pulses directed along first and second optical paths. First and second reflective mirrors are disposed in the first and second optical paths, respectively. The laser's output mirror is partially reflective and partially transmissive with respect to the first wavelength and the second wavelength in accordance with provided criteria. A first resonator length is defined between the output mirror and the first mirror, while a second resonator length is defined between the output mirror and the second mirror. The second resonator length is a function of the first resonator length.
    Keywords: Lasers and Masers
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  • 8
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    Review of Tm and Ho Materials; Spectroscopy and Lasers (2008)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: A review of Tm and Ho materials is presented, covering some fundamental aspects on the spectroscopy and laser dynamics in both single and co-doped systems. Following an introduction to 2- m lasers, applications and historical development, the physics of quasi-four level lasers, energy transfer and modeling are discussed in some detail. Recent developments in using Tm lasers to pump Ho lasers are discussed, and seen to offer some advantages over conventional Tm:Ho lasers. This article is not intended as a complete review, but as a primer for introducing concepts and a resource for further study.
    Keywords: Lasers and Masers
    Type: International Laser Physics Workshop; Jun 30, 2008 - Jul 04, 2008; Trondheim; Norway
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  • 9
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    Nonstoichiometric Laser Materials: Designer Wavelengths in Neodymium Doped Garnets (2008)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: The tunable nature of lasers provides for a wide range of applications. Most applications rely on finding available laser wavelengths to meet the needs of the research. This article presents the concept of compositional tuning, whereby the laser wavelength is designed by exploiting nonstoichiometry. For research where precise wavelengths are required, such as remote sensing, this is highly advantageous. A theoretical basis for the concept is presented and experimental results in spectroscopic measurements support the theoretical basis. Laser operation nicely demonstrates the validity of the concept of designer lasers.
    Keywords: Lasers and Masers
    Type: 15th International Conference on Luminescence and Optical Spectroscopy of Condensed Matter; Jul 07, 2008 - Jul 11, 2008; Lyon; France
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  • 10
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    Tm:germanate Fiber Laser: Tuning And Q-switching (2007)
    In:  CASI
    Details
    Publication Date: 2019-07-12
    Description: A Tm:germanate fiber laser produced 〉0.25 mJ/pulse in a 45 ns pulse. It is capable of producing multiple Q-switched pulses from a single p ump pulse. With the addition of a diffraction grating, Tm:germanate f iber lasers produced a wide, but length dependent, tuning range. By s electing the fiber length, the tuning range extends from 1.88 to 2.04 ?m. These traits make Tm:germanate lasers suitable for remote sensin g of water vapor.
    Keywords: Lasers and Masers
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