title: Low-loss, flat-passband and athermal arrayed-waveguide grating multi/demultiplexer.
abstract: We successfully demonstrated a low-loss, flat-passband, and athermal arrayed-waveguide grating (AWG) multi/demultiplexer with a Mach-Zehnder interferometer (MZI) as an input router. Resin-filled trenches were formed in the longer arm of the MZI as well as the slab in the AWG to compensate for the temperature dependence. A 32-channel athermal multi/demultiplexer was fabricated using silica-based planar lightwave circuit (PLC) technology. A small temperature-dependent wavelength shift of 0.02 nm was obtained over the temperature range of -5 to 65 degrees C with low-loss (3.3-3.7 dB) and flat-passband spectra.
authors: Information System Products Division, Hitachi Cable, Ltd., 880 Isagozawa-cho, Hitachi-shi, Ibaraki, Japan. maru.koichi@hitachi-cable.co.jp
authors: Koichi
authors: K
authors: Maru
authors: Yukio
authors: Y
authors: Abe
mesh_terms: D005374:Filtration / Q000295:instrumentation*; D007368:Interferometry / Q000295:instrumentation*; D012031:Refractometry / Q000295:instrumentation*; D012815:Signal Processing, Computer-Assisted / Q000295:instrumentation*; D018511:Systems Integration; D013685:Telecommunications / Q000295:instrumentation*; D013696:Temperature