Rare earth ion doped optical element

Details Rare earth ion doped optical element Rare earth ion doped optical element

1992-01-31

1994-08-23

Lobo, Ian J.

Optical: systems and elements

Optical amplifier

Optical fiber

372 68, H01S 314

Patent

active

053412370

ABSTRACT:
The effective rate of deactivation from the terminal state to the ground state of a rare earth ion doped optical material in a four-level amplifying or lasing scheme may be increased greatly by doping the optical material with two rare earth ions, an activator and a deactivator. Energy transfer occurs between the terminal state in the activator ion and the deactivator ion. The transition from the deactivator to the ground state occurs via phonon emission. By increasing the deactivation rate, the efficiency of the laser and the amplifier is increased.

REFERENCES:
patent: 3591517 (1971-07-01), Van Der Ziel et al.
patent: 3599109 (1971-08-01), Guggenheim et al.
patent: 4347485 (1982-08-01), Esterowitz et al.
patent: 4701928 (1987-10-01), Fan et al.
patent: 4809293 (1989-02-01), DeBell et al.
patent: 5088103 (1992-02-01), Esterowitz et al.
patent: 5119230 (1992-06-01), Pfeiffer
R. Stoneman et al., Continuous-Wave 1.5 .mu.m Thulium Cascade Laser, Optics Letters, vol. 16, p. 232 (1991).
Y. Durteste et al., Amplification and Lasing at 1.3 .mu.m in Praseodymium-Doped Fluorozirconate Fibres, Electronics Letters, vol. 27, p. 626 (1991).
Rosenblatt et al., "Laser Emission at 1.47 .mu.m from Fluorozirconate Glass Doped with Tm.sup.3+ and Tb.sup.3+ ", OSA Proc. Ser. Tunable Solid State Laser, 1989, pp. 373-376.
Huber et al., "Laser Pumping of Ho-, Tm-, Er-Doped Garnet Lasers at Room Temperature", IEEE Journal of Quantum Electronics, vol. 24, No. 6 Jun. 1988, pp. 920-923.
Fan et al., "Diode Laser-Pumped Solid-State Lasers", IEEE Journal of Quantum Electronics, vol. 24, No. 6, Jun. 1988, pp. 895-912.
Chen et al., "Concentration-Dependent Energy-Transfer Processes In Er.sup.3+ - and Tm.sup.3+ -doped Heavy-Metal Fluoride Glass", Optics Letters, vol. 14, No. 9, May 1989, pp. 432-434.
Smart et al., "Continuous-wave Oscillation of Tm.sup.3+ -doped Fluorozirconate Fibre Laser At Around 1.47 .mu.m, 1.9 .mu.m and 2.3 .mu.m When Pumped At 790 nm", Optics Communications, vol. 82, No. 5/6, May 1991, pp. 563-570.
Hanna et al., "A 1.54 .mu.m Er Glass Laser Pumped By A 1.064 .mu.m Nd: YAG Laser", Optics Communications, vol. 63, No. 6, Sep. 1987, pp. 417-420.
Berthou et al., "Optical-fiber temperature sensor base on up-conversion fluorescence", Optics Letters, vol. 15, #19, Oct. 1990.

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