An Optical Fibre Pulse Rate Multiplier for Ultra-low Phase-noise Signal Generation

Abstract

In this letter we report on an all optical-fibre approach to the synthesis of ultra-low noise microwave signals by photodetection of femtosecond laser pulses. We use a cascade of Mach-Zehnder fibre interferometers to realize stable and efficient repetition rate multiplication. This technique increases the signal level of the photodetected microwave signal by close to 18 dB, that in turn, allows us to demonstrate a phase noise level of 118 dBc/Hz at 1 Hz and -160 dBc/Hz at 10 MHz from 12 GHz signal. The noise floor of the fiber multiplier and photodetection system alone is around -164 dBc/Hz at the same offset frequency, which is very close to the fundamental shot noise floor

arXiv comment3 pages, 4 figures, in press Optics Letters

References in corpus (7)

• Generation of Ultrastable Microwaves via Optical Frequency Division
• Ultrastable lasers based on vibration insensitive cavities
• Ultra-low noise microwave generation with fiber-based optical frequency comb and application to atomic fountain clock
• Characterization of Power-to-Phase Conversion in High-Speed P-I-N Photodiodes
• Ultralow phase noise microwave generation with an Er:fiber-based optical frequency divider
• Interrogation of caesium atoms in a fountain clock by a femtosecond laser microwave oscillator
• Sub-100 attoseconds optics-to-microwave synchronization

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