Numerical investigation on the cavity ring-down signal produced by a pulsed laser excitation of a Fabry-Perot cavity

Jae Yong Lee, Hai Woon Lee, Jae Won Hahn

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In the presence of pulsed laser excitations, a Fabry-Perot cavity produces an optical signal transmission which decays out exponentially with a time rate proportional to the cavity loss. The signal is thus referred to as a ring-down signal and its feature provides a simple physical background for cavity ring-down spectroscopy (CRDS) to measure the ultralow absorption of a sample contained in the cavity. Numerical calculations are performed on temporal profile, intensity modulation behavior, and output coupling efficiency of the ring-down signal. The assumption made for the investigation is that a Fourier-transform-limited Gaussian laser pulse be injected to a stable empty cavity with complete mode-match to the lowest cavity transverse mode. It is found that the ring-down signal is generally superimposed by an inherent intensity modulation and a transient peak. The behavior dramatically changes depending on the excitation pulse duration and the cavity parameters such as the cavity free-spectral-range and the frequency detuning. Intuitive and straight forward time domain pictures are provided to allow understanding of the features in the context of time domain interference characterized by the amount of temporal overlap and the phase shift between the interfering fields. Also predicted is the superluminal transmission in a Fabry-Perot cavity which is confirmed by both the numerical calculation of the transmitted pulse profile in time domain and theoretical analysis based on the frequency domain description.

Original languageEnglish
Title of host publicationCLEO/Pacific Rim 1999 - Pacific Rim Conference on Lasers and Electro-Optics
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages348-349
Number of pages2
Volume2
ISBN (Electronic)0780356616, 9780780356610
DOIs
Publication statusPublished - 1999 Jan 1
Event1999 Pacific Rim Conference on Lasers and Electro-Optics, CLEO/Pacific Rim 1999 - Seoul, Korea, Republic of
Duration: 1999 Aug 301999 Sep 3

Other

Other1999 Pacific Rim Conference on Lasers and Electro-Optics, CLEO/Pacific Rim 1999
CountryKorea, Republic of
CitySeoul
Period99/8/3099/9/3

Fingerprint

Laser excitation
Pulsed lasers
pulsed lasers
Modulation
cavities
rings
Phase shift
excitation
Laser pulses
Fourier transforms
Spectroscopy
modulation
signal transmission
profiles
pulses
optical communication
pulse duration
phase shift
interference
output

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Computer Networks and Communications
  • Physics and Astronomy(all)

Cite this

Lee, J. Y., Lee, H. W., & Hahn, J. W. (1999). Numerical investigation on the cavity ring-down signal produced by a pulsed laser excitation of a Fabry-Perot cavity. In CLEO/Pacific Rim 1999 - Pacific Rim Conference on Lasers and Electro-Optics (Vol. 2, pp. 348-349). [811462] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/CLEOPR.1999.811462
Lee, Jae Yong ; Lee, Hai Woon ; Hahn, Jae Won. / Numerical investigation on the cavity ring-down signal produced by a pulsed laser excitation of a Fabry-Perot cavity. CLEO/Pacific Rim 1999 - Pacific Rim Conference on Lasers and Electro-Optics. Vol. 2 Institute of Electrical and Electronics Engineers Inc., 1999. pp. 348-349
@inproceedings{0b5729a0724644d697d4652d226458c1,
title = "Numerical investigation on the cavity ring-down signal produced by a pulsed laser excitation of a Fabry-Perot cavity",
abstract = "In the presence of pulsed laser excitations, a Fabry-Perot cavity produces an optical signal transmission which decays out exponentially with a time rate proportional to the cavity loss. The signal is thus referred to as a ring-down signal and its feature provides a simple physical background for cavity ring-down spectroscopy (CRDS) to measure the ultralow absorption of a sample contained in the cavity. Numerical calculations are performed on temporal profile, intensity modulation behavior, and output coupling efficiency of the ring-down signal. The assumption made for the investigation is that a Fourier-transform-limited Gaussian laser pulse be injected to a stable empty cavity with complete mode-match to the lowest cavity transverse mode. It is found that the ring-down signal is generally superimposed by an inherent intensity modulation and a transient peak. The behavior dramatically changes depending on the excitation pulse duration and the cavity parameters such as the cavity free-spectral-range and the frequency detuning. Intuitive and straight forward time domain pictures are provided to allow understanding of the features in the context of time domain interference characterized by the amount of temporal overlap and the phase shift between the interfering fields. Also predicted is the superluminal transmission in a Fabry-Perot cavity which is confirmed by both the numerical calculation of the transmitted pulse profile in time domain and theoretical analysis based on the frequency domain description.",
author = "Lee, {Jae Yong} and Lee, {Hai Woon} and Hahn, {Jae Won}",
year = "1999",
month = "1",
day = "1",
doi = "10.1109/CLEOPR.1999.811462",
language = "English",
volume = "2",
pages = "348--349",
booktitle = "CLEO/Pacific Rim 1999 - Pacific Rim Conference on Lasers and Electro-Optics",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
address = "United States",

}

Lee, JY, Lee, HW & Hahn, JW 1999, Numerical investigation on the cavity ring-down signal produced by a pulsed laser excitation of a Fabry-Perot cavity. in CLEO/Pacific Rim 1999 - Pacific Rim Conference on Lasers and Electro-Optics. vol. 2, 811462, Institute of Electrical and Electronics Engineers Inc., pp. 348-349, 1999 Pacific Rim Conference on Lasers and Electro-Optics, CLEO/Pacific Rim 1999, Seoul, Korea, Republic of, 99/8/30. https://doi.org/10.1109/CLEOPR.1999.811462

Numerical investigation on the cavity ring-down signal produced by a pulsed laser excitation of a Fabry-Perot cavity. / Lee, Jae Yong; Lee, Hai Woon; Hahn, Jae Won.

CLEO/Pacific Rim 1999 - Pacific Rim Conference on Lasers and Electro-Optics. Vol. 2 Institute of Electrical and Electronics Engineers Inc., 1999. p. 348-349 811462.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

TY - GEN

T1 - Numerical investigation on the cavity ring-down signal produced by a pulsed laser excitation of a Fabry-Perot cavity

AU - Lee, Jae Yong

AU - Lee, Hai Woon

AU - Hahn, Jae Won

PY - 1999/1/1

Y1 - 1999/1/1

N2 - In the presence of pulsed laser excitations, a Fabry-Perot cavity produces an optical signal transmission which decays out exponentially with a time rate proportional to the cavity loss. The signal is thus referred to as a ring-down signal and its feature provides a simple physical background for cavity ring-down spectroscopy (CRDS) to measure the ultralow absorption of a sample contained in the cavity. Numerical calculations are performed on temporal profile, intensity modulation behavior, and output coupling efficiency of the ring-down signal. The assumption made for the investigation is that a Fourier-transform-limited Gaussian laser pulse be injected to a stable empty cavity with complete mode-match to the lowest cavity transverse mode. It is found that the ring-down signal is generally superimposed by an inherent intensity modulation and a transient peak. The behavior dramatically changes depending on the excitation pulse duration and the cavity parameters such as the cavity free-spectral-range and the frequency detuning. Intuitive and straight forward time domain pictures are provided to allow understanding of the features in the context of time domain interference characterized by the amount of temporal overlap and the phase shift between the interfering fields. Also predicted is the superluminal transmission in a Fabry-Perot cavity which is confirmed by both the numerical calculation of the transmitted pulse profile in time domain and theoretical analysis based on the frequency domain description.

AB - In the presence of pulsed laser excitations, a Fabry-Perot cavity produces an optical signal transmission which decays out exponentially with a time rate proportional to the cavity loss. The signal is thus referred to as a ring-down signal and its feature provides a simple physical background for cavity ring-down spectroscopy (CRDS) to measure the ultralow absorption of a sample contained in the cavity. Numerical calculations are performed on temporal profile, intensity modulation behavior, and output coupling efficiency of the ring-down signal. The assumption made for the investigation is that a Fourier-transform-limited Gaussian laser pulse be injected to a stable empty cavity with complete mode-match to the lowest cavity transverse mode. It is found that the ring-down signal is generally superimposed by an inherent intensity modulation and a transient peak. The behavior dramatically changes depending on the excitation pulse duration and the cavity parameters such as the cavity free-spectral-range and the frequency detuning. Intuitive and straight forward time domain pictures are provided to allow understanding of the features in the context of time domain interference characterized by the amount of temporal overlap and the phase shift between the interfering fields. Also predicted is the superluminal transmission in a Fabry-Perot cavity which is confirmed by both the numerical calculation of the transmitted pulse profile in time domain and theoretical analysis based on the frequency domain description.

UR - http://www.scopus.com/inward/record.url?scp=0033309150&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0033309150&partnerID=8YFLogxK

U2 - 10.1109/CLEOPR.1999.811462

DO - 10.1109/CLEOPR.1999.811462

M3 - Conference contribution

VL - 2

SP - 348

EP - 349

BT - CLEO/Pacific Rim 1999 - Pacific Rim Conference on Lasers and Electro-Optics

PB - Institute of Electrical and Electronics Engineers Inc.

ER -

Lee JY, Lee HW, Hahn JW. Numerical investigation on the cavity ring-down signal produced by a pulsed laser excitation of a Fabry-Perot cavity. In CLEO/Pacific Rim 1999 - Pacific Rim Conference on Lasers and Electro-Optics. Vol. 2. Institute of Electrical and Electronics Engineers Inc. 1999. p. 348-349. 811462 https://doi.org/10.1109/CLEOPR.1999.811462