Related Experiment Video
Updated: Jul 9, 2026

06:42
Generation and Coherent Control of Pulsed Quantum Frequency Combs
Published on: June 8, 2018
Phase-locked white-light continuum pulses: toward a universal optical frequency-comb synthesizer
Optics Letters
|December 8, 2007
Summary
Two phase-locked ultrashort laser pulses generate synchronized white-light continuum pulses. These pulses exhibit stable interference, enabling broad frequency comb applications for precise measurements.
Area of Science:
- Quantum Optics
- Laser Physics
- Nonlinear Optics
Background:
- Ultrashort laser pulses are crucial for generating broadband light.
- Controlling the phase of generated light is essential for advanced applications.
Purpose of the Study:
- To demonstrate phase-locking between independently generated white-light continuum pulses.
- To explore the potential of these phase-locked pulses for frequency metrology.
Main Methods:
- Generation of two white-light continuum pulses using phase-locked ultrashort laser pulses.
- Observation and analysis of Young interference fringes between the two continua.
Main Results:
- Demonstrated clear and stable Young interference fringes between the two white-light continuum pulses.
- Confirmed that the generated continua emit essentially in phase with negligible random phase jitter.
Conclusions:
- Phase-locked ultrashort laser pulses can generate synchronized white-light continua.
- These synchronized continua are suitable for creating broad frequency combs for absolute frequency measurements across the IR to UV spectrum.
Related Concept Videos
Oscillations In An LC Circuit
An idealized LC circuit of zero resistance can oscillate without any source of emf by shifting the energy stored in the circuit between the electric and magnetic fields. In such an LC circuit, if the capacitor contains a charge q before the switch is closed, then all the energy of the circuit is initially stored in the electric field of the capacitor. This energy is given by
Generating Electromagnetic Radiations
The German physicist Heinrich Hertz (1857–1894) was the first to generate and detect certain types of electromagnetic waves in the laboratory. Starting in 1887, he performed a series of experiments that confirmed the existence of electromagnetic waves and verified that they travel at the speed of light. Hertz used an alternating-current RLC (resistor-inductor-capacitor) circuit that resonated at a known frequency and connected it to a loop of wire. High voltages induced across the gap in the...
Atomic Nuclei: Larmor Precession Frequency
The earth's gravitational field produces a 'twisting force' perpendicular to the angular momentum of a spinning mass (such as a spinning top) that causes the mass to 'wobble' around the gravitational field axis in a phenomenon called precession. Similarly, the magnetic moment (μ) of a spinning nucleus precesses due to an external magnetic field directed along the z-axis. The precession of the magnetic moment vector about the magnetic field is called Larmor precession, and the angular frequency...

