Continuously tunable terahertz signal generation with an integrated 1.55-μm dual-wavelength DFB photonic chip

Abstract

We present widely tunable continuous-wave terahertz (THz) mode-beating signal generation based on an InP photonic integrated circuit (PIC) including a pair of 1.55-pm DFB lasers with integrated semiconductor optical amplifiers (SOA). Continuous THz signal from 40 GHz to 1.0 THz has been demonstrated. 

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