Publications
Publication Information
| Title | A high-finesse Fabry-Perot cavity with a frequency-doubled green laser for precision Compton polarimetry at Jefferson Lab |
| Authors | A. Rakhman, Mohamed Hafez, Sirish Nanda, Fatiha Benmokhtar, Alexandre Camsonne, Gordon Cates, Mark Dalton, Gregg Franklin, Megan Friend, Robert Michaels, Vladimir Nelyubin, Diana Parno, Kent Paschke, Brian Quinn, Paul Souder, William Tobias |
| JLAB number | JLAB-PHY-16-2236 |
| LANL number | arXiv:1601.00251 |
| Other number | DOE/OR/23177-3783 |
| Document Type(s) | (Journal Article) |
| Associated with EIC: | No |
| Supported by Jefferson Lab LDRD Funding: | No |
| Funding Source: | Nuclear Physics (NP) |
|
Journal Compiled for Nuclear Instruments & Methods in Physics Research, Section A Volume 811 Page(s) 82-96 Refereed | |
| Publication 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:LiNbO$_{3}$ crystal. The maximum achieved green power at 5 W IR 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 1.0~GeV and 50~$\mu$A. |
| Experiment Numbers: | other |
| Group: | Hall A |
| Document: | |
| DOI: | http://dx.doi.org/10.1016/j.nima.2016.03.085 |
| Accepted Manuscript: | |
| Supporting Documents: | |
| Supporting Datasets: | |