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Updated: Jun 2, 2025
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Generation and Coherent Control of Pulsed Quantum Frequency Combs
Published on: June 8, 2018
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Fully phase-stabilized 1 GHz turnkey frequency comb at 1.56 μm
Daniel M B Lesko1,2,3, Alexander J Lind1,4,3, Nazanin Hoghooghi5,3
1Time and Frequency Division, NIST, 325 Broadway, Boulder, Colorado 80305, USA.
OSA Continuum
|January 15, 2025
Summary
We stabilized a commercial 1 GHz optical frequency comb for high-speed spectroscopy. This low-noise system achieves precise measurements, benefiting applications needing fast data acquisition and high resolution.
Area of Science:
- Quantum Optics
- Spectroscopy
- Laser Physics
Background:
- Optical frequency combs (OFCs) are crucial for precision measurements.
- Gigahertz repetition rates enhance spectral acquisition speed in dual-comb spectroscopy.
- High repetition rate, low noise OFCs are needed for advanced applications.
Purpose of the Study:
- To stabilize and characterize a commercial 1 GHz mode-locked laser for OFC applications.
- To demonstrate a robust, self-referenced comb system using off-the-shelf components.
- To enable faster, high-resolution spectroscopic measurements.
Main Methods:
- Stabilization of the opticalCông, the CEO frequency (fCEO) using fiber amplification and spectral broadening.
- Characterization of residual phase noise for fCEO and beatnote stabilization.
- Utilized a commercial 1 GHz mode-locked laser operating at telecom wavelengths.
Main Results:
- Achieved stabilization of fCEO with 438 mrad residual phase noise.
- Stabilized the beatnote between comb modes and a CW laser with 41 mrad residual phase noise.
- Demonstrated a high signal-to-noise ratio detection.
Conclusions:
- A turnkey, self-referenced 1 GHz optical frequency comb system was successfully stabilized and characterized.
- The system utilizes polarization-maintaining fiber components for robustness.
- This robust system is suitable for low-noise frequency comb applications requiring high repetition rates.
