Raman phase conjugate resonator for intracavity aero-optic turbulence aberration correction

V. S. Sudarshanam; M. Cronin-Golomb; P. R. Hemmer; M. S. Shahriar

doi:10.1016/S0030-4018(98)00679-8

Raman phase conjugate resonator for intracavity aero-optic turbulence aberration correction

V. S. Sudarshanam^*, M. Cronin-Golomb, P. R. Hemmer, M. S. Shahriar

^*Corresponding author for this work

Electrical and Computer Engineering

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

A cw degenerate phase conjugate resonator (PCR) with intracavity aero-optic turbulent flow is demonstrated using sodium vapor pumped with a low intensity cw laser. A turbulent helium jet at a high flow velocity of 250 m/s and forcing frequency of 18 kHz generated the spatio-temporal aberrations. The intracavity normalized peak-to-peak intensity fluctuations at 18 kHz measured with a pinhole-detector are ten times smaller in the corrected beam than in the aberrated beam. The threshold pump intensity for the resonator is ~4.5 W/cm² in the absence of the turbulent flow. The pump frequency is tuned well within the Doppler width of the Na D₁ transition. Evidence of a degenerate (laboratory frame) double-Λ mechanism involving Zeeman sublevels is also shown.

Original language	English (US)
Pages (from-to)	283-288
Number of pages	6
Journal	Optics Communications
Volume	160
Issue number	4-6
DOIs	https://doi.org/10.1016/S0030-4018(98)00679-8
State	Published - Feb 15 1999

Keywords

42.50.Gy
42.55.Ye
42.60.Da
42.65.-k
42.65.Hw
Coherent population trapping
Degenerate four-wave mixing
Optical phase conjugation
Phase conjugate resonator
Turbulence aberration correction

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Physical and Theoretical Chemistry
Electrical and Electronic Engineering

Access to Document

10.1016/S0030-4018(98)00679-8

Cite this

@article{fea48f5f7deb45e1ab91f0334d5c58ca,

title = "Raman phase conjugate resonator for intracavity aero-optic turbulence aberration correction",

abstract = "A cw degenerate phase conjugate resonator (PCR) with intracavity aero-optic turbulent flow is demonstrated using sodium vapor pumped with a low intensity cw laser. A turbulent helium jet at a high flow velocity of 250 m/s and forcing frequency of 18 kHz generated the spatio-temporal aberrations. The intracavity normalized peak-to-peak intensity fluctuations at 18 kHz measured with a pinhole-detector are ten times smaller in the corrected beam than in the aberrated beam. The threshold pump intensity for the resonator is ~4.5 W/cm2 in the absence of the turbulent flow. The pump frequency is tuned well within the Doppler width of the Na D1 transition. Evidence of a degenerate (laboratory frame) double-Λ mechanism involving Zeeman sublevels is also shown.",

keywords = "42.50.Gy, 42.55.Ye, 42.60.Da, 42.65.-k, 42.65.Hw, Coherent population trapping, Degenerate four-wave mixing, Optical phase conjugation, Phase conjugate resonator, Turbulence aberration correction",

author = "Sudarshanam, {V. S.} and M. Cronin-Golomb and Hemmer, {P. R.} and Shahriar, {M. S.}",

note = "Funding Information: The authors thank S. Ezekiel of the Massachusetts Institute of Technology. This research work was sponsored by the U.S. Air Force Research Laboratory through grant numbers F30602-96-2-0101 and F30602-96-2-0100. ",

year = "1999",

month = feb,

day = "15",

doi = "10.1016/S0030-4018(98)00679-8",

language = "English (US)",

volume = "160",

pages = "283--288",

journal = "Optics Communications",

issn = "0030-4018",

publisher = "Elsevier",

number = "4-6",

}

TY - JOUR

T1 - Raman phase conjugate resonator for intracavity aero-optic turbulence aberration correction

AU - Sudarshanam, V. S.

AU - Cronin-Golomb, M.

AU - Hemmer, P. R.

AU - Shahriar, M. S.

N1 - Funding Information: The authors thank S. Ezekiel of the Massachusetts Institute of Technology. This research work was sponsored by the U.S. Air Force Research Laboratory through grant numbers F30602-96-2-0101 and F30602-96-2-0100.

PY - 1999/2/15

Y1 - 1999/2/15

N2 - A cw degenerate phase conjugate resonator (PCR) with intracavity aero-optic turbulent flow is demonstrated using sodium vapor pumped with a low intensity cw laser. A turbulent helium jet at a high flow velocity of 250 m/s and forcing frequency of 18 kHz generated the spatio-temporal aberrations. The intracavity normalized peak-to-peak intensity fluctuations at 18 kHz measured with a pinhole-detector are ten times smaller in the corrected beam than in the aberrated beam. The threshold pump intensity for the resonator is ~4.5 W/cm2 in the absence of the turbulent flow. The pump frequency is tuned well within the Doppler width of the Na D1 transition. Evidence of a degenerate (laboratory frame) double-Λ mechanism involving Zeeman sublevels is also shown.

AB - A cw degenerate phase conjugate resonator (PCR) with intracavity aero-optic turbulent flow is demonstrated using sodium vapor pumped with a low intensity cw laser. A turbulent helium jet at a high flow velocity of 250 m/s and forcing frequency of 18 kHz generated the spatio-temporal aberrations. The intracavity normalized peak-to-peak intensity fluctuations at 18 kHz measured with a pinhole-detector are ten times smaller in the corrected beam than in the aberrated beam. The threshold pump intensity for the resonator is ~4.5 W/cm2 in the absence of the turbulent flow. The pump frequency is tuned well within the Doppler width of the Na D1 transition. Evidence of a degenerate (laboratory frame) double-Λ mechanism involving Zeeman sublevels is also shown.

KW - 42.50.Gy

KW - 42.55.Ye

KW - 42.60.Da

KW - 42.65.-k

KW - 42.65.Hw

KW - Coherent population trapping

KW - Degenerate four-wave mixing

KW - Optical phase conjugation

KW - Phase conjugate resonator

KW - Turbulence aberration correction

UR - http://www.scopus.com/inward/record.url?scp=0033076775&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0033076775&partnerID=8YFLogxK

U2 - 10.1016/S0030-4018(98)00679-8

DO - 10.1016/S0030-4018(98)00679-8

M3 - Article

AN - SCOPUS:0033076775

SN - 0030-4018

VL - 160

SP - 283

EP - 288

JO - Optics Communications

JF - Optics Communications

IS - 4-6

ER -

Raman phase conjugate resonator for intracavity aero-optic turbulence aberration correction

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this