Optically pumped bistable laser

Details Optically pumped bistable laser Optically pumped bistable laser

1995-03-16

1996-08-06

Scott, Jr., Leon

Coherent light generators

Particular pumping means

372703, 372 6, 372 23, 372 94, H01S 309

Patent

active

055441920

ABSTRACT:
An optically pumped bistable laser (LAS) with an active laser condition and an excited inactive condition is presented. The bistable laser (LAS) comprises an erbium-doped fiber (ER), a resonator (RES), a pumping light source (PUMP), and optical isolator (ISO), a wavelength-dependent coupler (WDM) and an asymmetrical fiber coupler (FC). Excitation from the excited condition is created by pumping light from the pumping light source (PUMP) into the erbium-doped fiber (ER), to place the bistable laser into the excited inactive condition. Optical pulses, which are coupled in through input (IN), activate the bistable laser (LAS) and enable it to operate both as a pulse generator and a trigger circuit, as a function of pulse duration and/or pulse frequency.

REFERENCES:
patent: 5367587 (1994-11-01), Mizuochi et al.
patent: 5426656 (1995-06-01), Tohmon et al.
patent: 5430824 (1995-07-01), Chigusa et al.
"Dual Wavelength Pulse Generation Using Mode-Locked Erbium-Doped Fibre Ring Laser", J. Schlager et al, Electronics Letters, 24 Oct. 1991, vol. 27, No. 22, pp. 2072-2073.
"All Optical FM Mode-Locking of Fibre Laser", E. Greer et al, Electronics Letters, 27 Aug. 1992, vol. 28, No. 18, pp. 1741-1743.

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