Coherent light generators – Particular active media – Plural active media or active media having plural dopants
Patent
1990-04-30
1992-02-11
Epps, Georgia
Coherent light generators
Particular active media
Plural active media or active media having plural dopants
372 39, 372 41, 372 32, 372 70, 372 69, H01S 314, H01S 313
Patent
active
050881035
ABSTRACT:
A room temperature solid state laser for producing a laser emission at a wavelength of substantially 2.09 microns is disclosed. In a preferred embodiment, the laser includes: a laser cavity defined by first and second reflective elements opposing each other on a common axis to form a path therebetween; a laser crystal disposed in the laser cavity, the laser crystal having a host material capable of accepting Cr.sup.3+ sensitizer ions, Tm.sup.3+ sensitizer ions and Ho.sup.3+ activator ions; an amount of Cr.sup.3+ sensitizer ions between about 0.3% and about 2% dispersed within the host material; an amount of Tm.sup.3+ sensitzer ions between about 3% and about 12% dispersed within the host material; and an amount of Ho.sup.3+ activator ions between about 0.1% and about 0.7% dispersed within the host material; and flashlamp and means for exciting the laser crystal to produce a laser emission at substantially 2.09 microns with a slope efficiency of at least 4%, and preferably of at least 5%.
REFERENCES:
patent: 4701928 (1987-10-01), Fan et al.
"A New Spectroscopic Scheme of an Active Medium for the . . . ", Antipenko t al., Opt. Spectrosc. (USSR), 60(1), Jan. 1986, pp. 95-97.
"Active Medium of Lasers Operating in the 2.mu. Spectra Range . . . ", Antipenko et al., Sov. J. Quantum Electron., 16(7) Jul. 1986, pp. 955-957.
"Lasing of Holmium Ions as a Result of the 5/7.fwdarw.5/8 Transition . . . ", Allet'ev et al., Sov. J. Quantum Electron., 16(7), Oct. 1986, pp. 1404-1405.
"High-Efficiency 2.09 .mu.m Flashlamp-Pumped Laser", Quarles et al., Appl. Phys. Lett., 55(11) Sep. 11, 1989, pp. 1062-1064.
Fan et al., IEEE J. Quant. Electron., 24(6), Jun. 1988, pp. 924-933, "Spectroscopy and Diode Laser-Pumped Operation of . . . ".
Duczynski et al., Appl. Phys. Lett., 48(23), Jun. 88, "CW Double Cross Pumping of the 5/7-5/8 Transition . . . ", p. 1562.
Fan et al., Opt. Lett., 12(9), Sep. 1987, pp. 678-680, "Continuous-Wave Operation at 2.1 .mu.m of a . . . ".
Lotem et al., IEEE J. Quant. Electron., 24(6) Jun. 1988, pp. 1193-1200, "A 2 .mu.m Holium Laser".
Esterowitz Leon
Quarles Gregory J.
Epps Georgia
Jameson George
McDonnell Thomas E.
The United States of America as represented by the Secretary of
LandOfFree
Room-temperature, flashpumped, 2.09 micron solid state laser does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Room-temperature, flashpumped, 2.09 micron solid state laser, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Room-temperature, flashpumped, 2.09 micron solid state laser will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-786461