First InP-based reconfigurable integrated add-drop multiplexer

S-matrix oriented CAD-tool for simulating complex integrated optical circuits

“…Furthermore, since the phased array acts as a passband filter, the width of the peaks at , and is reduced since they are filtered twice. The modulation of the signal at is due to the interference between the direct and the looped-back signal and has been observed in measurements of a similar add-drop circuit [6]. This interference phenomenon is strongly reduced for the other two channels, because the direct signal is greatly suppressed.…”

Low-loss, compact, and polarization independent PHASAR demultiplexer fabricated by using a double-etch process

“…P HASED-ARRAY demultiplexers [1] are important components in multiwavelength lasers (MWLs) [2], [3] and integrated wavelength-selective switches such as add-drop multiplexers (ADMs) [4] and optical crossconnects (OXCs) [5], [6]. The increasing amount of components integrated on a single chip results in severe demands on wafer uniformity and processing.…”

Arrayed‐Waveguide Gratings

“…4.2.8, and an early example of an InP based reconfigurable add-drop multiplexer can be found in [135]. This device integrates 4 Mach-Zehnder interferometer switches with a 5 5 AWG in a loop-back configuration (cf.…”