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4967416 | Esterowtiz et al. | Oct 1990 | A |
5042039 | Edagawa et al. | Aug 1991 | A |
5084880 | Esterowtiz et al. | Jan 1992 | A |
5247529 | Heidemann | Sep 1993 | A |
5299210 | Snitzer et al. | Mar 1994 | A |
5309452 | Ohishi et al. | May 1994 | A |
5366937 | Schneider et al. | Nov 1994 | A |
5388110 | Snitzer | Feb 1995 | A |
5453873 | Millar et al. | Sep 1995 | A |
5488624 | Thrash et al. | Jan 1996 | A |
5727007 | Smart et al. | Mar 1998 | A |
6205164 | Ohishi et al. | Mar 2001 | B1 |
Number | Date | Country |
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3-289186 | Dec 1991 | JP |
6-120598 | Apr 1994 | JP |
8-95097 | Apr 1996 | JP |
8-250790 | Sep 1996 | JP |
9-120090 | May 1997 | JP |
2688303 | Aug 1997 | JP |
10-56224 | Feb 1998 | JP |
10-163554 | Jun 1998 | JP |
10-229238 | Aug 1998 | JP |
11-501770 | Feb 1999 | JP |
Entry |
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Ono et al., “Gain-Flattened Er3−-Doped Fiber Amplifier for a WIDM Signal in the 1.57-1.60-μm Wavelength Region,” IEEE Photonics Technology Letters, vol. 9, No. 5, May, 1997, pp. 596-598. (See also discussion on p. 2 of the present specification.). |