Phase Noise Measurement of Optical Heterodyning Two-Tone Signal Generated by Two Free-Running Lasers
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概要
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We evaluated the single side-band phase noise of a 40GHz beat signal generated by two free-running lasers. This allowed us to verify the utility of the two free-running lasers is verified as a light source for a next-generation radio-over-fiber system using frequency such as those in the millimeter-wave and terahertz bands. We also measured the phase noise of a frequency quadrupler using a Mach-Zehnder modulator for comparison. The phase noise of the two free-running lasers and the frequency quadrupler are -63.85 and -95.22dBc/Hz at a 10kHz offset frequency, respectively.
著者
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Kanno Atsushi
National Institute Of Information And Communications Technology
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Kawanishi Tetsuya
National Inst. Of Information And Technol. (nict) Tokyo Jpn
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SOTOBAYASHI Hideyuki
Aoyama Gakuin University
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YAMANAKA Ryuta
Aoyama Gakuin University
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FUJITA Taka
Aoyama Gakuin University
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