Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE

Two-photon interference measurement of laser pulse

Masaahiro Matsuoka, Y. Miyamoto, T. Kuga, Mitsuru Baba

Published Oct 28, 1992• 0 citations
Publisher

Abstract

A new two-photon interference method to measure coherence time and pulse width of ultrashort pulses is proposed. Experiments are performed on cw-modelocked dye-laser pulses.
DOI
10.1117/12.130473

Related papers

Measurement of ultrafast optical pulses with two-photon interference

Y. Miyamoto, T. Kuga, M. Baba +1 more

We introduce a new two-photon interference scheme for measurement of the coherence time and pulse width of ultrafast pulses. Experiments were performed with the output pulses of a cw mode-locked dye laser, with results in good agreement with the conventional second-harmonic autocorrelation measurement.

Optics Letters•Jun 1, 1993•34 citations

Two-Photon Interference Measurement of Ultrafast Laser Pulses

Masaya Matsuoka, Y. Miyamoto, T. Kuga +2 more

Recently some novel two-photon interference experiments have been performed, where quantities such as the field coherence time and the beat spacing between light beams with different frequencies were measured with high time resolution1. These experiments have overcome the traditional limits on time resolution by combining a Mach-Zehnder interferometer configuration with the two-photon correlation technique. All of these experiments, however, have been performed with cw light sources, and no attempt has yet been made to measure the temporal variation of the field intensity.

International Conference on Ultrafast Phenomena•Jan 1, 1992•0 citations

Intensity Interference of Ultrashort Pulsed Fluorescence

Motoyoshi Baba, Ying Li, Masahiro Matsuoka

We extend the intensity interference experiments to a pulse envelope measurement of ultrashort incoherent optical pulses. The interfering fields can be mutually incoherent light pulses from independent sources. We show that the pulse envelope or width of ultrashort incoherent light pulses can be measured independently from the coherence time by using a combination of interferometer and two-photon coincidence counter. With this method we have measured the envelope autocorrelation of mutually incoherent femtosecond fluorescence from a solution of Nile Blue in dimethylaniline.

Physical Review Letters•Jun 17, 1996•9 citations

Measurement of Ultra-Short Single-Photon Pulse Duration with Two-Photon Interference

Fan Lv, Fang‐Wen Sun, Chang‐Ling Zou +2 more

We proposed a protocol of measuring the duration of ultra-short single-photon pulse with two-photon interference. The pulse duration can be obtained from the width of the visibility of two-photon Hong-Ou-Mandel interference or the indistinguishability of the two photons. Moreover, the shape of a single-photon pulse can be measured with ultra-short single-photon pulses through the two-photon interference.

Chinese Physics Letters•Feb 1, 2011•1 citation

Femtosecond measurement of fluorescence by two-photon interference

Ying Li, M. Baba, Masaya Matsuoka

We show that the coherence time and the pulse envelope of ultrashort fluorescence can be measured with two-photon interference. We have performed these measurements in a solution of Nile Blue in N,N-dimethylaniline in the femtosecond regime. The coherence time and the envelope contribute two components to a dip in the coincidence count rate. We have verified that these components can be measured separately at will. This technique provides the means to measure the pulse envelope of ultrashort pulses over a wide range of wavelengths and intensities.

Physical Review A•Apr 1, 1997•7 citations

Temporal Coherent Control in Two-Photon Transitions: From Optical Interferences to Quantum Interferences

Valérie Blanchet, Céline Nicole, M. A. Bouchène +1 more

Temporal coherent control of an excited state wave packet is produced by a sequence of two identical ultrashort laser pulses. We show theoretically and experimentally in the case of the $(6s\ensuremath{-}7d)$ two-photon transition in Cs that optical and quantum interferences take place and are clearly distinguished.

Physical Review Letters•Apr 7, 1997•203 citations
Recently some novel two-photon interference experiments have been performed, where quantities such as the field coherence time and the beat spacing between light beams with different frequencies were measured with high time resolution1. These experiments have overcome the traditional limits on time resolution by combining a Mach-Zehnder interferometer configuration with the two-photon correlation technique. All of these experiments, however, have been performed with cw light sources, and no attempt has yet been made to measure the temporal variation of the field intensity.
We extend the intensity interference experiments to a pulse envelope measurement of ultrashort incoherent optical pulses. The interfering fields can be mutually incoherent light pulses from independent sources. We show that the pulse envelope or width of ultrashort incoherent light pulses can be measured independently from the coherence time by using a combination of interferometer and two-photon coincidence counter. With this method we have measured the envelope autocorrelation of mutually incoherent femtosecond fluorescence from a solution of Nile Blue in dimethylaniline.
We show that the coherence time and the pulse envelope of ultrashort fluorescence can be measured with two-photon interference. We have performed these measurements in a solution of Nile Blue in N,N-dimethylaniline in the femtosecond regime. The coherence time and the envelope contribute two components to a dip in the coincidence count rate. We have verified that these components can be measured separately at will. This technique provides the means to measure the pulse envelope of ultrashort pulses over a wide range of wavelengths and intensities.