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Related Experiment Video

Updated: May 24, 2026

Implementation of a Reference Interferometer for Nanodetection

Implementation of a Reference Interferometer for Nanodetection

Published on: April 26, 2014

Agile linear interferometric method for carrier-envelope phase drift measurement.

P Jójárt¹, Á Börzsönyi, B Borchers

¹Department of Optics and Quantum Electronics, University of Szeged, P.O. Box 406, H-6701 Szeged, Hungary.

|March 2, 2012

Summary

This summary is machine-generated.

This study presents a new linear interferometric method for measuring ultrashort laser pulse carrier-envelope phase drift. It offers faster data acquisition and reduced noise compared to prior linear techniques.

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The Generation of Higher-order Laguerre-Gauss Optical Beams for High-precision Interferometry

The Generation of Higher-order Laguerre-Gauss Optical Beams for High-precision Interferometry

Published on: August 12, 2013

Area of Science:

Ultrafast optics
Laser physics
Optical metrology

Background:

Carrier-envelope phase (CEP) drift is a critical parameter in ultrashort pulse applications.
Accurate measurement of CEP drift is essential for controlling femtosecond laser systems.
Existing linear methods often face limitations in bandwidth or data acquisition speed.

Purpose of the Study:

To demonstrate a bandwidth-independent and linear interferometric method for measuring CEP drift.
To achieve high data acquisition rates for real-time monitoring of CEP drift.
To improve upon the noise performance of existing linear CEP drift measurement techniques.

Main Methods:

Utilizing a resonant multiple-beam interferometer for temporal overlap of ultrashort pulses.
Analyzing the spectral interference pattern to determine relative CEP between pulses.
Implementing active stabilization of the interferometer's optical length.
Cross-calibrating the method with f-to-2f interferometry.

Main Results:

Successful demonstration of a bandwidth-independent linear interferometric method.
Achieved data acquisition rates up to 200 Hz for CEP drift measurement.
Reported a phase jitter of 117 mrad (rms) due to active optical length stabilization.
Demonstrated reduced noise and quicker data acquisition compared to previous linear methods.

Conclusions:

The developed method provides a robust and efficient approach for measuring CEP drift.
The high data acquisition rate enables real-time monitoring and control of ultrashort pulse characteristics.
This technique offers significant advantages for applications requiring precise control of laser pulse properties.