TY - JOUR
T1 - Characterization of Polarization Pulling in Fiber Optical Parametric Amplifiers
AU - Wang, Shao Hao
AU - Wai, Alex
N1 - Funding Information:
Manuscript received September 3, 2018; revised November 8, 2018; accepted November 27, 2018. Date of publication December 3, 2018; date of current version December 13, 2018. This work was supported in part by the National Natural Science Foundation of China under Grant 61405198 and Grant 61205049 and in part by the Natural Science Foundation of Fujian Province under Grant 2017J01756. (Corresponding author: Shao Hao Wang.) S. H. Wang is with the Department of Microelectronics Science and Engineering, Fuzhou University, Fuzhou 350116, China (e-mail: [email protected]).
Publisher Copyright:
© 1965-2012 IEEE.
PY - 2019/2
Y1 - 2019/2
N2 - In fiber optical parametric amplifiers (FOPAs), the output states of polarization (SOPs) of both the signal and the idler are affected by the pump SOP through the polarization pulling effect. We proposed a normalized model to characterize the general dynamics of polarization pulling in degenerated pump FOPAs. By using this model, we determined the relationship between the output degree of polarization (DOP) and the gain of the FOPAs over three orders of magnitude changes in polarization-mode dispersion (PMD) coefficient. We demonstrated numerically that when fibers with typical PMD coefficients are used, the output signals of the FOPAs can achieve higher DOP than those of co-propagating fiber Raman amplifiers, which depends on whether the parametric gain is sufficiently large to compensate the PMD-induced phase mismatch. We also found that for FOPAs using different types of fibers with moderate PMD coefficients, this DOP-gain relationship exhibits highly similar behaviors. We thus adopted a set of modified empirical formulas to analyze this relationship. This formula can also describe the relationship between the output DOP and the conversion efficiency of the idler. The results indicate that in all cases studied, FOPAs achieve much stronger polarization pulling to the idlers than the signals.
AB - In fiber optical parametric amplifiers (FOPAs), the output states of polarization (SOPs) of both the signal and the idler are affected by the pump SOP through the polarization pulling effect. We proposed a normalized model to characterize the general dynamics of polarization pulling in degenerated pump FOPAs. By using this model, we determined the relationship between the output degree of polarization (DOP) and the gain of the FOPAs over three orders of magnitude changes in polarization-mode dispersion (PMD) coefficient. We demonstrated numerically that when fibers with typical PMD coefficients are used, the output signals of the FOPAs can achieve higher DOP than those of co-propagating fiber Raman amplifiers, which depends on whether the parametric gain is sufficiently large to compensate the PMD-induced phase mismatch. We also found that for FOPAs using different types of fibers with moderate PMD coefficients, this DOP-gain relationship exhibits highly similar behaviors. We thus adopted a set of modified empirical formulas to analyze this relationship. This formula can also describe the relationship between the output DOP and the conversion efficiency of the idler. The results indicate that in all cases studied, FOPAs achieve much stronger polarization pulling to the idlers than the signals.
KW - Nonlinear optics
KW - parametric oscillators and amplifiers
KW - polarization-selective devices
UR - http://www.scopus.com/inward/record.url?scp=85057856676&partnerID=8YFLogxK
U2 - 10.1109/JQE.2018.2884484
DO - 10.1109/JQE.2018.2884484
M3 - Journal article
AN - SCOPUS:85057856676
SN - 0018-9197
VL - 55
JO - IEEE Journal of Quantum Electronics
JF - IEEE Journal of Quantum Electronics
IS - 1
M1 - 6800111
ER -