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Birefringence Free Planar Optical Waveguide Made by Flame Hydrolysis Deposition (FHD) Through Tailoring of the Overcladding, A. Kilian, et al., Journal of Lightwave Technology, vol. 18, No. 2, Feb. 2000, pp. 193-198. |
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Christoph K. Nadler et al., “Polarization Insensitive, Low-Loss, Low-Crosstalk Wavelength Multiplexer Modules”, IEEE Journal of Selected Topics in Quantum Electronics, vol. 5, No. 5, Sep./Oct. 1999, pp. 1407-1412. |
A Kilian et al., “Birefringence Free Planar Optical Waveguide Made by Flame Hydrolysis Deposition (FDH) Through Tailoring of the Overcladding”, Journal of Lightwave Technology, vol. 18, No. 2, Feb. 2000, pp. 193-198. |
S.M. Ojha, “Simple Method of Fabricating Polarisation-Insensitive and Very Low Crosstalk AWG Grating Devices”, Electronics Letters, vol. 34, No. 1, Jan. 8, 1998, pp. 78-79. |
Y. Hida, “400-channel 25-GHz spacing arrayed-waveguide grating covering a full range of C-and L-bands”, Optical Fiber Communication Conference and Exhibit, 2001, OFC 2001, vol. 3, pp. wb2-1—wb2-3. |
Jane Lam et al., “Design Trade-offs for Arrayed Waveguide Grating DWDM MUX/DEMUX”, Lightwave Microsystems White paper, at least as early as Jan., 2001, 9 pages. |
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Meint K. Smit et al., “PHASAR-Based WDM-Devices: Principles, Design and Applications”, IEEE Journal of Selected Topics in Quantum Electronics, vol. 2, No. 2, Jun. 1996, pp. 236-250. |
Akira Himeno et al., “Silica-Based Planar Lightwave Circuits”, IEEE Journal of Selected Topics in Quantum Eelctronics, vol. 4, No. 6, Nov./Dec. 1998, pp. 913-924. |
C. Dragone, An N x N Optical Multiplexer Using a Planar Arrangement of Two Star Couplers, IEEE Photonics Technology Letters, vol. 3, No. 9, Sep. 1991, pp. 812-815. |
Akimasa Kaneko et al., “Recent Progress on Arrayed Waveguide Gratings for DWDM Applications”, IEICE Trans Electron., vol. E83-C, No. 6, Jun. 2000, pp. 860-868. |