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Oscillations In An LC Circuit

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

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Updated: Feb 25, 2026

20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier

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Published on: July 12, 2017

Harmonically mode-locked Yb:CALGO laser oscillator.

Hauke M Bensch, Georg Herink, Felix Kurtz

|August 10, 2017

Summary

This summary is machine-generated.

We demonstrate stable, third-order harmonic mode-locking in a Ytterbium-doped Calcium Lithium Gallium Orthosilicate (Yb:CALGO) laser oscillator. This research explores harmonic operation regions and presents a model for pulse dynamics.

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Last Updated: Feb 25, 2026

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Automation of Mode Locking in a Nonlinear Polarization Rotation Fiber Laser through Output Polarization Measurements

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Published on: February 28, 2016

Area of Science:

Optics and Photonics
Laser Physics
Materials Science

Background:

Passively mode-locked lasers are crucial for generating ultrashort optical pulses.
Harmonic mode-locking offers higher repetition rates but can be challenging to stabilize.
Ytterbium-doped lasers (Yb:CALGO) are known for their broad emission and efficiency.

Purpose of the Study:

To achieve and analyze stable, high-order harmonic mode-locking in a Yb:CALGO laser.
To investigate the influence of intra-cavity dispersion on harmonic mode-locking stability.
To develop a theoretical model for the transient dynamics of harmonic mode-locking.

Main Methods:

Utilizing a passively mode-locked Yb:CALGO laser oscillator.
Operating the laser in the solitary regime with a fundamental repetition rate of 94 MHz.
Analyzing harmonic mode-locking regions by varying intra-cavity dispersion.
Tracking transient pulsing dynamics and comparing with a theoretical model.

Main Results:

Stable third-order harmonic mode-locking was achieved and maintained for several days.
Pulse durations ranged from 200 fs to 600 fs.
The study identified specific intra-cavity dispersion conditions favorable for stable harmonic operation.
A theoretical model was developed to explain the observed pulse dynamics.

Conclusions:

Passively mode-locked Yb:CALGO lasers can achieve stable high-order harmonic repetition rates.
Intra-cavity dispersion is a critical parameter for controlling harmonic mode-locking stability.
The presented theoretical model provides insight into the underlying pulse dynamics of harmonic mode-locking.