Fig. 5: Characterization of Frequency Doubling Responses. | Nature Communications

Fig. 5: Characterization of Frequency Doubling Responses.

From: Single-chip silicon photonic engine for analog optical and microwave signals processing

Fig. 5: Characterization of Frequency Doubling Responses.The alternative text for this image may have been generated using AI.

a The engine configuration for RF frequency doubling. b Measurement setup for the nonlinear RF responses. c Configuration of the modulator block for high extinction ratio; d Frequency doubling results with off-chip PD; e Frequency doubling results with on-chip PD. EA Electronic Amplifier, EDFA Erbium-Doped Fiber Amplifier, ESA Electrical Spectrum Analyzer.

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