Design and performance of 1762 nm Tm-doped fiber amplifiers for manipulation and control of optical qubits in 133Ba+ ions

Robert E. Tench; Adrian Zepeda; Wiktor Walasik; Alexandre Amavigan; Jean-Marc Delavaux

doi:10.1117/12.3001098

13 March 2024 Design and performance of 1762 nm Tm-doped fiber amplifiers for manipulation and control of optical qubits in ¹³³Ba+ ions

Robert E. Tench, Adrian Zepeda, Wiktor Walasik, Alexandre Amavigan, Jean-Marc Delavaux

Author Affiliations +

Proceedings Volume 12911, Quantum Computing, Communication, and Simulation IV; 1291111 (2024) https://doi.org/10.1117/12.3001098
Event: SPIE Quantum West, 2024, San Francisco, California, United States

Abstract

We report the optical architecture, experimental performance, and simulated performance of polarization- maintaining CW and pulsed single clad Tm-doped fiber amplifiers designed to operate over a wavelength span of 1760—1960 nm. We highlight the potential applications of these amplifiers to quantum computing and quantum qubit experiments using 1762 nm light. Our amplifier exhibits 3 W CW output power and 20 W peak pulsed output power (2 MHz rep. rate, 10% duty cycle) at 1762 nm. Measurements of the wavelength response of the TDFA yield an experimental operating bandwidth extending from < 1750 nm to > 1920 nm. Simulations of the amplifier bandwidth indicate a 3 dB (50% FWHM) wavelength span of 1745 nm to 1980 nm (135 nm). Experimental output power and bandwidth results agree well with the simulations. The external noise figure for this amplifier ranges from 7.5 dB to 9.5 dB. No linewidth broadening was observed in a typical TDFA output when using a single frequency input laser source with a linewidth of 10 kHz. We discuss suitability and applications of the TDFA to 1762 nm enabled manipulation of optical qubits in trapped ¹³³Ba⁺ ions.

Conference Presentation

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Robert E. Tench, Adrian Zepeda, Wiktor Walasik, Alexandre Amavigan, and Jean-Marc Delavaux "Design and performance of 1762 nm Tm-doped fiber amplifiers for manipulation and control of optical qubits in ¹³³Ba+ ions", Proc. SPIE 12911, Quantum Computing, Communication, and Simulation IV, 1291111 (13 March 2024); https://doi.org/10.1117/12.3001098

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