Optical: systems and elements – Optical amplifier – Optical fiber
Patent
1995-08-16
1997-01-28
Hellner, Mark
Optical: systems and elements
Optical amplifier
Optical fiber
359337, 359176, H01S 300
Patent
active
055982948
ABSTRACT:
The optical fiber amplifier of the invention includes: a rare earth element doped optical fiber, and a pump light generator for optically pumping the rare earth element doped optical fiber. The optical fiber amplifier further includes a reflector for selectively reflecting an optical signal input from an input end of the rare earth element doped optical fiber to the input end, so as to give a gain to the optical signal.
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patent: 5404413 (1995-04-01), Delavaux et al.
patent: 5434702 (1995-07-01), Byron
M. Kobayashi et al., "Low Noise Configuration of a Reflective Erbium Doped Fiber Amplifier", Proceedings of the 1993 IEICE Fall Conference, B-883 p. 4-124 (1993).
M. Mitsuda et al., "Analog Transmission Characteristics in Bidirectional Optical Fiber Amplifier", Proceedings of the 1994 IEICE Spring Conference, C-398, p. 4-395 (1994).
H. Jidai, "Trial-Manufacture of Reflective EDFA - Verification of the Possibility of Improving Noise Characteristic", No. 49, pp. 23-25 (1993).
E. L. Goldstein et al., "Multiwavelength Fiber-Amplifier Cascades in Undirectional Interoffice Ring Networks", OFC/IOOC '93, vol. 4, pp. 44-46 (1993).
M. Wilkinson et al., "D-Fibre Filter for Erbium Gain Spectrum Flattening", Electronics Letters, vol. 28, No. 2, pp. 131-132 (1992).
S. F. Su et al., "Use of Acoustooptic Tunable Filters as Equalizers in WDM Lightwave Systems", OFC '92, vol. 5, pp. 203-204 (1992).
Mitsuda Masahiro
Ohya Jun
Uno Tomoaki
Hellner Mark
Matsushita Electric - Industrial Co., Ltd.
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