Microwave Photonics Programs at DARPA

作者：Ridgway Richard W^*; Dohrman Carl L; Conway Joshua A

来源：Journal of Lightwave Technology, 2014, 32(20): 3428-3439.

DOI：10.1109/JLT.2014.2326395

• Electrooptic modulator
• high power photodiode
• microwave photonics
• noise figure
• optical fiber links
• optical phased-locked loops
• photonic downconversion
• spurious free dynamic range (SFDR)

Over the past ten years, DARPA has made significant investments toward advancing the field of microwave photonics. This paper reviews DARPA-funded progress in this subject over the past decade. DARPA-funded research has advanced the state-of-the-art for microwave-photonic components, including lownoise laser diodes, electrooptic modulators and high power photodiodes, as well as microwave photonic link configurations, including photonic downconversion, reconfigurable optical filters and optical phase-locked loops. These investments have yielded dramatic improvements in spurious-free dynamic range (SFDR). Measured performance includes SFDRs exceeding 115 dB . Hz(2/3) at 16 GHz using broadband externally modulated links; exceeding 120 dB . Hz(2/3) at 10 GHz using sub-octave electrooptic modulators; near 135 dB . Hz(2/3) at 100 MHz using optical phased-locked loops as linear phase demodulators; and exceeding 125 dB . Hz(2/3) at 5 GHz using optical filtering, downconversion and predistortion compensation.

• 出版日期2014-10-15