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Carrier-envelope phase control using linear electro-optic effect.

O Gobert¹, P M Paul, J F Hergott

¹CEA-Saclay, IRAMIS, Service des Photons, Atomes et Molécules, 91191 Gif-sur-Yvette, France.

|March 30, 2011

Summary

This summary is machine-generated.

We developed a new method to control the carrier-envelope phase (CEP) of ultra-short laser pulses using the electro-optic effect. This technique allows for precise phase control in high-repetition-rate laser systems.

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Area of Science:

Physics
Optics
Laser Technology

Background:

Controlling the carrier-envelope phase (CEP) is crucial for applications requiring precise control over ultra-short laser pulses.
Existing methods for CEP control can be complex or limited in their applicability to high-repetition-rate systems.

Purpose of the Study:

To introduce and experimentally validate a novel method for controlling the CEP of ultra-short laser pulses.
To demonstrate the effectiveness of the linear electro-optic effect for CEP stabilization in Chirped Pulse Amplification (CPA) laser systems.

Main Methods:

Utilizing the linear electro-optic effect in a Lithium Niobate (LiNbO3) crystal to induce phase shifts.
Applying moderate voltages to the crystal to achieve phase shifts greater than π radians.
Experimental validation using a CPA-based laser system.

Main Results:

Achieved phase shifts exceeding π radians with minimal impact on other pulse parameters, except for group delay.
Demonstrated the feasibility of controlling CEP using moderate voltages.
Confirmed that the time response of the electro-optic effect is suitable for high-repetition-rate applications.

Conclusions:

The electro-optic effect provides an effective and practical method for controlling the CEP of ultra-short laser pulses.
This technique enables high-repetition-rate CEP shaping and stabilization for CPA laser systems.
The method offers precise phase control with minimal alteration of other critical pulse characteristics.