Characterizing a fiber-based frequency comb with electro-optic modulator

Abstract

We report on the characterization of a commercial-core fiber-based frequency comb equipped with an intracavity electro-optic modulator (EOM). We investigate the relationship between the noise of the pump diode and the laser relative intensity noise (RIN) and demonstrate the use of a low noise current supply to substantially reduce the laser RIN. By measuring several transfer functions, we evaluate the potentiality of the EOM for comb repetition rate stabilization. We also evaluate the coupling to other relevant parameters of the comb. From these measureemnts, we infer the capabilities of the femtosecond laser comb to generate very low phase noise microwave signals when phase locked to a high spectral purity ultra-stable laser.

Submitted to IEEE UFFC Special issue

References in corpus (9)

• Sr lattice clock at 1x10^{-16} fractional uncertainty by remote optical evaluation with a Ca clock
• Compact, thermal-noise-limited optical cavity for diode laser stabilization at 1 x 10-15
• Absolute frequency measurement of the 40Ca+ S1/2 - D5/2 clock transition
• Long-distance frequency transfer over an urban fiber link using optical phase stabilization
• An Optical Fibre Pulse Rate Multiplier for Ultra-low Phase-noise Signal Generation
• Characterization of Power-to-Phase Conversion in High-Speed P-I-N Photodiodes
• Amplitude to phase conversion of InGaAs pin photo-diodes for femtosecond lasers microwave signal generation
• An Optical Lattice Clock with Spin-polarized 87Sr Atoms
• Ultralow phase noise microwave generation with an Er:fiber-based optical frequency divider

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