A passive optical add-drop multiplexer with 1 dB of insertion loss and 36 dB of isolation is fabricated by writing Bragg gratings in a waveguide Mach-Zehnder interferometer using ArF excimer laser light. The spectral properties and bit-error-rate performance of the device are fully characterized using polarized light.

Bragg gratings, Mach-Zehnder interferometer, Optical add-drop module, Optical waveguides, Polarized light, Wavelength division multiplexing
IEEE Photonics Technology Letters
Department of Electronics

Albert, J, Bilodeau, F. (F.), Johnson, D.C. (D. C.), Hill, K.O. (K. O.), Hattori, K. (K.), Kitagawa, T. (T.), … Abe, M. (M.). (1999). Low-Loss Planar Lightwave Circuit OADM with High Isolation and No Polarization Dependence. IEEE Photonics Technology Letters, 11(3), 346–348. doi:10.1109/68.748230