Phase Modulation With Interferometric Detection as an Alternative to Intensity Modulation With Direct Detection for Analog-Photonic Links |
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| Authors: | Urick V.J. Bucholtz F. Devgan P.S. McKinney J.D. Williams K.J. |
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| Affiliation: | U.S. Naval Res. Lab., Washington; |
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| Abstract: | We analyze the performance of analog-photonic links employing phase modulation with interferometric demodulation and compare it to intensity-modulation direct-detection links. We derive expressions for RF gain, RF noise figure, compression dynamic range, and spurious-free dynamic range for both architectures. We demonstrate theoretically and experimentally that phase-modulated links can outperform intensity-modulated links over substantial frequency ranges. |
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