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This work reports the performance of a wireless transmission link based on a radio access unit (RAU) implemented in photonic integrated circuit (PIC) form. The PIC contains a high speed photodiode for direct optical to RF conversion, monolithically integrated with a semiconductor laser, used as an optical local oscillator for up-conversion of the incoming 16-QAM-OFDM signal through heterodyning. Wireless...
We report a photonic chip comprising multiple colliding pulse mode-locked laser and delay line-assisted Mach-Zehnder interleaver to generate 350GHz wave signal. With this mode-locked laser fourth harmonics are obtained. The interleaver quadruples the repetition rate. An integrated phase modulator enables wavelength tuning up to 0.03nm.
Integrated optical signal processors have many applications in photonic processing of microwave signals. They provides wideband and stable signal processing operations on miniaturized chips with ultimate control precision. Creating general-purpose processors by introducing programmability is a key to enable system function flexibility and therewith offer great potential for a wide range of applications...
A photonic integrated circuit (PIC) to operate as a microwave waveform generator for linearly chirped microwave waveform (LCMW) generation is proposed. An LCMW with a temporal duration of 10 ps and a bandwidth of 12 GHz corresponding to a time-bandwidth product of 1.2×105 is generated.
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