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Related Experiment Video

Updated: Jun 4, 2026

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Published on: June 8, 2018

Optical frequency comb assisted laser system for multiplex precision spectroscopy.

L Consolino¹, G Giusfredi, P De Natale

¹European Laboratory for Non-Linear Spectroscopy (LENS) and Dipartimento di Fisica,Universitá degli Studi di Firenze, Via N. Carrara 1, 50019-Sesto Fiorentino (FI), Italy. consolino@lens.unifi.it

|March 4, 2011

Summary

This summary is machine-generated.

A new laser system phase-locked to an Optical Frequency Comb Synthesizer (OFCS) achieves high frequency precision for spectroscopy. This development enables precise measurements of Helium transitions and offers potential for broader applications.

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Area of Science:

Atomic, Molecular, and Optical Physics
Laser Spectroscopy
Frequency Metrology

Background:

Precise laser frequency control is crucial for advanced spectroscopic applications.
Optical Frequency Combs (OFCs) provide a stable frequency reference for laser stabilization.

Purpose of the Study:

To develop a laser system phase-locked to an Optical Frequency Comb Synthesizer (OFCS) for high-precision spectroscopy.
To demonstrate multiplex spectroscopy on Helium transitions using the developed system.

Main Methods:

Phase-locking two lasers to an OFCS operating at 1083 nm.
Measuring absolute frequency precision and residual root-mean-square (rms) phase noise.
Performing multiplex spectroscopy on Helium transitions.

Main Results:

Achieved an absolute frequency precision of 6x10⁻¹³ at 1 second, limited by the OFCS.
Measured residual rms phase noise of 71 mrad and 87 mrad for the two phase-locked lasers.
Successfully demonstrated multiplex spectroscopy on 1083 nm Helium transitions.

Conclusions:

The developed OFCS-assisted laser system provides high frequency stability and precision.
The system is suitable for precise spectroscopic measurements of atomic transitions.
The approach can be generalized to multiple lasers for wider frequency applications in various spectral regions.