Y. Inoue, M. Oguma, T. Kitoh, M. Ishii, T. Shibata, Y. Hibino, H. Kawata and T. Sugie, "Low-crosstalk 4-channel coarse WDM filter using silica-based planar-lightwave-circuit", in Optical Fiber Communication Conf. (OFC) Dig., 2003, Paper TuK6,. pp. 75 -76.
M. K. Smit, "New focusing and dispersive planar component based on an optical phased array", Electron. Lett., vol. 24, pp. 385-386, 1988.
H. Takahashi, S. Suzuki, K. Kato, I. Nishi, "Arrayed waveguide grating for wavelength division multi/demulitplexer with nanometer resolution", Electron. Lett., vol. 26, pp. 87-88, 1990.
C. Dragone, "An Nx N optical multiplexer using a planar arrangement of two star couplers", IEEE Photon. Technol. Lett., vol. 3, pp. 812-815, 1991.
T. Nakazawa, S. Kittaka, K. Tsunetomo, K. Kintaka, J. Nishii and H. Hirao, "Compact CWDM demultiplexer with a transmission grating buried in silica waveguide", presented at the Eur. Conf. Optical Communication (ECOC) , Paper Tu 1.2.2, 2003.
Y. Doi, M. Ishii, S. Kamei, I. Ogawa, S. Mino, T. Shibata, Y. Hida, T. Kitagawa and K. Kato, "Flat-top high responsivity 8-channel CWDM photoreceiver using silica-based AWG with multimode output waveguides", presented at the Eur. Conf. Optical Communication (ECOC), Paper Th3.4.4, 2003.
S. Kamei, Y. Doi, Y. Hida, Y. Inoue, S. Suzuki and K. Okamoto, "Low-loss and flat/wide-passband CWDM demultiplexer using silica-based AWG with multi-mode output waveguides", presented at the Optical Fiber Communication (OFC) Conf., Paper TuI2, 2004.
C. R. Doerr, R. Pafchek and L. W. Stulz, "Integrated band demultiplexer using waveguide grating routers", IEEE Photon. Technol. Lett., vol. 15, no. 8, pp. 1088-1090, Aug. 2003.
C. R. Doerr, M. Cappuzzo, L. Gomez, E. Chen, A. Wong-Foy and E. Laskowski, "Planar lightwave circuit eight-channel CWDM multiplexer", presented at the Optical Fiber Communication (OFC) Conf., Postdeadline Paper PD11, 2004.
C. R. Doerr, M. Cappuzzo, E. Laskowski, A. Paunescu, L. Gomez, L. W. Stulz and J. Gates, "Dynamic wavelength equalizer in silica using the single-filtered-arm interferometer", IEEE Photon. Technol. Lett., vol. 11, no. 5, pp. 581-583, May 1999.
Y. P. Li, "Optical device having low insertion loss", U.S. Patent 5 745 618, Apr. <day>28</day>, 1998.
C. Dragone, "Planar 1x N optical multiplexer with nearly ideal response", IEEE Photon. Technol. Lett., vol. 14, no. 11, pp. 1545-1547, Nov. 2002.