%B Proceedings of the Optical Fiber Communication Conference (OFC) 2024 %X We demonstrate a Mach-Zehnder architecture for polarization-insensitive fiber optical parametric amplifiers to obtain a noise figure of ∼4.5dB and reduction of nonlinear crosstalk as compared to previously demonstrated PI-FOPAs while demonstrating net gain up to 24dB. %A F Bessin %A V Gordienko %A FM Ferreira %A NJ Doran %J 2024 Optical Fiber Communications Conference and Exhibition, OFC 2024 - Proceedings %D 2024 %L discovery10193433 %I Optica Publishing Group %P 1-3 %T Demonstration of a stable, high-performance Mach-Zehnder Polarization-Insensitive Fiber Optical Parametric Amplifier %O This version is the author accepted manuscript. For information on re-use, please refer to the publisher's terms and conditions.