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We demonstrate a tunable planar lightwave circuit for arbitrary 4-bit binary code generation at 40 GHz. The device is a 6-stage lattice-form Mach-Zehnder interferometer fabricated in silica-on-silicon technology.
Using the direct time domain approach and thermo-optic properties of silica, we show that a single spectrally periodic filter can generate any 4-bit binary amplitude and phase code pattern. We design and analyze a tunable 6-stage lattice-form Mach-Zehnder interferometer using silica-on- silicon planar lightwave circuit technology for generating 40 GHz pulse trains with arbitrary binary amplitude and...
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