Watt-level high-OSNR continuous wave tunable figure-8 holmium-doped fiber laser for OWC systems
Ammar Armghan, Ahmad Atieh, Khaled Aliqab, Meshari Alsharari, Jawad Mirza, Slim Chaoui, Muhammad Ijaz
TL;DR
This paper presents a watt-level, high-performance holmium-doped fiber laser for optical wireless communication in the 2000 nm wavelength range.
Contribution
A novel figure-8 cavity design for a tunable, high-OSNR holmium-doped fiber laser with watt-level output power is proposed.
Findings
Maximum output powers of 0.842 W, 1.5 W, and 2 W were achieved for different coupling ratios.
A high slope efficiency of 51.8% was obtained at 2046.7 nm with optimized parameters.
The laser demonstrated stable power fluctuation and minimal output penalty due to pair-induced quenching.
Abstract
The 2000 nm optical transmission window is gaining significant interest for terrestrial and deep-space optical wireless communication (OWC) due to its exceptionally low atmospheric absorption. Therefore, high-power Holmium-doped fiber lasers (HDFLs) with high optical signal-to-noise ratio (OSNR) are attractive solutions for OWC systems because they can enhance transmission efficiency, improve signal quality over longer transmission distances, and ensure reliable communication in challenging atmospheric conditions by operating in the eye-safe 2000 nm wavelength range. In this work, we propose the design of a watt-level, high-OSNR continuous wave (CW) HDFL tunable in 2022-2140 nm wavelength range based on figure-8 (F8) cavity and a single in-band backward pump source. The performance of F8 HDFL is evaluated considering optimized pumping configuration, length of Holmium-doped fiber (HDF),…
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Taxonomy
TopicsOptical Wireless Communication Technologies · Advanced Fiber Optic Sensors · Photonic Crystal and Fiber Optics