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[ThA1-5] Real-time Verification of Transmitter-side Frequency Shift for Doppler-Shift Compensation in Free Space Optical Coherent Communication

○Yuta Yokomura¹, Hayato Sano¹, Hikari Mochizuki¹, Keisuke Matsuda¹, Keita Mochizuki¹ (1.MitsubishiElectric Corp.)

Keywords:

Digital signal processing algorithms for optical communications,Free-space optical communications

It was demonstrated that a digital coherent signal processing circuit with a transmitter-side frequency shift function can compensate for 2 GHz Doppler-shift, and that the nonlinearity of the output amplitude of DAC.