A high-finesse Fabry-Perot cavity with a frequency-doubled green laser for precision Compton polarimetry at Jefferson Lab

A. Rakhman; M. Hafez; S. Nanda; F. Benmokhtar; A. Camsonne; G. D. Cates; M. M. Dalton; G. B. Franklin; M. Friend; R. W. Michaels; V. Nelyubin; D. S. Parno; K. D. Paschke; B. P. Quinn; P. A. Souder; W. A. Tobias

doi:10.1016/j.nima.2016.03.085

A high-finesse Fabry-Perot cavity with a frequency-doubled green laser for precision Compton polarimetry at Jefferson Lab

A. Rakhman, M. Hafez, S. Nanda, F. Benmokhtar, A. Camsonne, G. D. Cates, M. M. Dalton, G. B. Franklin, M. Friend, R. W. Michaels, V. Nelyubin, D. S. Parno, K. D. Paschke, B. P. Quinn, P. A. Souder, W. A. Tobias

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

4 Scopus citations

Abstract

A high-finesse Fabry-Perot cavity with a frequency-doubled continuous wave green laser (532 nm) has been built and installed in Hall A of Jefferson Lab for high precision Compton polarimetry. The infrared (1064 nm) beam from a ytterbium-doped fiber amplifier seeded by a Nd:YAG nonplanar ring oscillator laser is frequency doubled in a single-pass periodically poled MgO:LiNbO₃ crystal. The maximum achieved green power at 5 W infrared pump power is 1.74 W with a total conversion efficiency of 34.8%. The green beam is injected into the optical resonant cavity and enhanced up to 3.7 kW with a corresponding enhancement of 3800. The polarization transfer function has been measured in order to determine the intra-cavity circular laser polarization within a measurement uncertainty of 0.7%. The PREx experiment at Jefferson Lab used this system for the first time and achieved 1.0% precision in polarization measurements of an electron beam with energy and current of 1.06 GeV and 50 μA.

Original language	English
Pages (from-to)	82-96
Number of pages	15
Journal	Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume	822
DOIs	https://doi.org/10.1016/j.nima.2016.03.085
State	Published - Jun 21 2016
Externally published	Yes

Funding

The authors wish to thank the Hall A technical staff for their assistance in installing the upgraded system and the JLab Accelerator Division for their efforts to achieve and maintain the high electron beam quality necessary for running the Compton polarimeter. This work is supported by DOE Grants DE-AC05-06OR23177 , under which Jefferson Science Associates, LLC, operate Jefferson Lab, and DE-FG02-84ER40146 .

Funders	Funder number
U.S. Department of Energy	DE-FG02-84ER40146, DE-AC05-06OR23177

Keywords

Compton polarimetry
Fabry-Perot cavity
Laser polarization
Polarized electron beam

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10.1016/j.nima.2016.03.085

Cite this

Rakhman, A., Hafez, M., Nanda, S., Benmokhtar, F., Camsonne, A., Cates, G. D., Dalton, M. M., Franklin, G. B., Friend, M., Michaels, R. W., Nelyubin, V., Parno, D. S., Paschke, K. D., Quinn, B. P., Souder, P. A., & Tobias, W. A. (2016). A high-finesse Fabry-Perot cavity with a frequency-doubled green laser for precision Compton polarimetry at Jefferson Lab. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 822, 82-96. https://doi.org/10.1016/j.nima.2016.03.085

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title = "A high-finesse Fabry-Perot cavity with a frequency-doubled green laser for precision Compton polarimetry at Jefferson Lab",

abstract = "A high-finesse Fabry-Perot cavity with a frequency-doubled continuous wave green laser (532 nm) has been built and installed in Hall A of Jefferson Lab for high precision Compton polarimetry. The infrared (1064 nm) beam from a ytterbium-doped fiber amplifier seeded by a Nd:YAG nonplanar ring oscillator laser is frequency doubled in a single-pass periodically poled MgO:LiNbO3 crystal. The maximum achieved green power at 5 W infrared pump power is 1.74 W with a total conversion efficiency of 34.8%. The green beam is injected into the optical resonant cavity and enhanced up to 3.7 kW with a corresponding enhancement of 3800. The polarization transfer function has been measured in order to determine the intra-cavity circular laser polarization within a measurement uncertainty of 0.7%. The PREx experiment at Jefferson Lab used this system for the first time and achieved 1.0% precision in polarization measurements of an electron beam with energy and current of 1.06 GeV and 50 μA.",

keywords = "Compton polarimetry, Fabry-Perot cavity, Laser polarization, Polarized electron beam",

author = "A. Rakhman and M. Hafez and S. Nanda and F. Benmokhtar and A. Camsonne and Cates, {G. D.} and Dalton, {M. M.} and Franklin, {G. B.} and M. Friend and Michaels, {R. W.} and V. Nelyubin and Parno, {D. S.} and Paschke, {K. D.} and Quinn, {B. P.} and Souder, {P. A.} and Tobias, {W. A.}",

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Rakhman, A, Hafez, M, Nanda, S, Benmokhtar, F, Camsonne, A, Cates, GD, Dalton, MM, Franklin, GB, Friend, M, Michaels, RW, Nelyubin, V, Parno, DS, Paschke, KD, Quinn, BP, Souder, PA & Tobias, WA 2016, 'A high-finesse Fabry-Perot cavity with a frequency-doubled green laser for precision Compton polarimetry at Jefferson Lab', Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 822, pp. 82-96. https://doi.org/10.1016/j.nima.2016.03.085

A high-finesse Fabry-Perot cavity with a frequency-doubled green laser for precision Compton polarimetry at Jefferson Lab. / Rakhman, A.; Hafez, M.; Nanda, S. et al.
In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 822, 21.06.2016, p. 82-96.

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

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T1 - A high-finesse Fabry-Perot cavity with a frequency-doubled green laser for precision Compton polarimetry at Jefferson Lab

AU - Rakhman, A.

AU - Hafez, M.

AU - Nanda, S.

AU - Benmokhtar, F.

AU - Camsonne, A.

AU - Cates, G. D.

AU - Dalton, M. M.

AU - Franklin, G. B.

AU - Friend, M.

AU - Michaels, R. W.

AU - Nelyubin, V.

AU - Parno, D. S.

AU - Paschke, K. D.

AU - Quinn, B. P.

AU - Souder, P. A.

AU - Tobias, W. A.

PY - 2016/6/21

Y1 - 2016/6/21

N2 - A high-finesse Fabry-Perot cavity with a frequency-doubled continuous wave green laser (532 nm) has been built and installed in Hall A of Jefferson Lab for high precision Compton polarimetry. The infrared (1064 nm) beam from a ytterbium-doped fiber amplifier seeded by a Nd:YAG nonplanar ring oscillator laser is frequency doubled in a single-pass periodically poled MgO:LiNbO3 crystal. The maximum achieved green power at 5 W infrared pump power is 1.74 W with a total conversion efficiency of 34.8%. The green beam is injected into the optical resonant cavity and enhanced up to 3.7 kW with a corresponding enhancement of 3800. The polarization transfer function has been measured in order to determine the intra-cavity circular laser polarization within a measurement uncertainty of 0.7%. The PREx experiment at Jefferson Lab used this system for the first time and achieved 1.0% precision in polarization measurements of an electron beam with energy and current of 1.06 GeV and 50 μA.

AB - A high-finesse Fabry-Perot cavity with a frequency-doubled continuous wave green laser (532 nm) has been built and installed in Hall A of Jefferson Lab for high precision Compton polarimetry. The infrared (1064 nm) beam from a ytterbium-doped fiber amplifier seeded by a Nd:YAG nonplanar ring oscillator laser is frequency doubled in a single-pass periodically poled MgO:LiNbO3 crystal. The maximum achieved green power at 5 W infrared pump power is 1.74 W with a total conversion efficiency of 34.8%. The green beam is injected into the optical resonant cavity and enhanced up to 3.7 kW with a corresponding enhancement of 3800. The polarization transfer function has been measured in order to determine the intra-cavity circular laser polarization within a measurement uncertainty of 0.7%. The PREx experiment at Jefferson Lab used this system for the first time and achieved 1.0% precision in polarization measurements of an electron beam with energy and current of 1.06 GeV and 50 μA.

KW - Compton polarimetry

KW - Fabry-Perot cavity

KW - Laser polarization

KW - Polarized electron beam

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U2 - 10.1016/j.nima.2016.03.085

DO - 10.1016/j.nima.2016.03.085

M3 - Article

AN - SCOPUS:84962456147

SN - 0168-9002

VL - 822

SP - 82

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JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

ER -

Rakhman A, Hafez M, Nanda S, Benmokhtar F, Camsonne A, Cates GD et al. A high-finesse Fabry-Perot cavity with a frequency-doubled green laser for precision Compton polarimetry at Jefferson Lab. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 2016 Jun 21;822:82-96. doi: 10.1016/j.nima.2016.03.085

A high-finesse Fabry-Perot cavity with a frequency-doubled green laser for precision Compton polarimetry at Jefferson Lab

Abstract

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