The ultrafast limit of the response of arrayed waveguide gratings is studied both theoretically and experimentally. We present new experimental results that show that interference occurs inside of an arrayed waveguide pulse shaper even when pulses that travel through different paths do not overlap. A comprehensive discussion of this extreme case is presented.
- Optical planar waveguide components
- Optical pulse shaping
- Ultrafast optics
- Waveguide arrays
- Wavelength-division multiplexing (WDM)