Optical: systems and elements – Optical amplifier – Particular resonator cavity
Patent
1999-07-06
2000-07-25
Moskowitz, Nelson
Optical: systems and elements
Optical amplifier
Particular resonator cavity
359176, 359341, 372 6, 372 94, H01S 330
Patent
active
060942983
ABSTRACT:
An Erbium doped fiber amplifier (EDFA) is placed in a laser cavity to clamp the gain of the amplifier. The laser cavity is preferably formed to minimize the effects of relaxation oscillations and of spectral hole burning. In a preferred embodiment, the laser cavity supports a lasing wavelength which makes the saturation energy at the laser wavelength less than that at the signal wavelengths. In an erbium doped fiber implementation, the laser wavelength is shorter than that of the signal wavelengths and is separated from them by no more than approximately 75% of the width of the spectral hole. The compounding of relaxation oscillations may be substantially eliminated by varying the length of the fiber within each laser cavity within a system to change the photon round-trip time within each cavity.
REFERENCES:
patent: 5239607 (1993-08-01), da Silva et al.
patent: 5633964 (1997-05-01), Di Giovanni et al.
Srivastava et al, Opt. Fiber Commun. Conf., vol. 2, OSA Tech Dig. Series, (OSA), pp 33-34, 1996.
Winch, R.G., Tellocommunications Transmission Systems, McGraw Hill, pp. 335-337, 1993.
Luo Gengxian
Srivastava Atul K.
Sulhoff James W.
Sun Yan
Zyskind John L.
Lucent Technologies - Inc.
Moskowitz Nelson
LandOfFree
Erbium-doped fiber amplifier with automatic gain control does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Erbium-doped fiber amplifier with automatic gain control, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Erbium-doped fiber amplifier with automatic gain control will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1340749