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4622114 | Glass et al. | Nov 1986 | |
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5300190 | Sugimoto et al. | Apr 1994 | |
5726805 | Kaushik et al. | Mar 1998 |
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0451047A1 | Oct 1991 | EPX |
Entry |
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C. Cremer et al, "Bragg Gratings on INGAASP/INP Waveguides as Polarization Independent Optical Filters" Journal of Lightwave Technology, vol. 7, No. 11, Nov. 1, 1989, pp. 1641-1645. |