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Binary phase-shift keying (BPSK) modulator is the basic component for generating advanced modulation formats such as polarization-division-multiplexed quadrature phase-shift keying. In this letter, we demonstrate BPSK modulation using a silicon traveling-wave modulator at data rate up to 48 Gb/s, with 7.4-$\text{V}_{\rm pp}$ differential RF driving voltage and record 8.75-pJ/b dynamic energy efficiency...
We demonstrate a scheme to scale the bandwidth of a frequency comb generated by phase modulation of CW lasers using four-wave mixing in a silicon nano-waveguides, resulting in >100 comb lines spaced by 10-GHz within 5-dB bandwidth.
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