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Novel Single Clad Ho-doped Fiber with High Slope Efficiency and Low Ion Pairing

arXiv eess.SPby Robert E. Tench, Wiktor Walasik, Alexandre Amavigan, Jean-Marc Delavaux, Colin C. Baker, Daniel RhonehouseApril 2, 20261 min read0 views
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arXiv:2604.00823v1 Announce Type: new Abstract: We report the design and experimental and simulated performance for a 2050 nm band fiber amplifier with high optical-optical slope efficiency and low ion pairing, using a novel high performance single clad Ho-doped fiber from the Naval Research Laboratory (NRL). We measure an optical-optical slope efficiency of 57% using 1 mW input signal power and 1860 nm pumping which we believe is the highest slope efficiency obtained to date for a single clad single stage copumped HDFA. A new method for non-destructive measurement of the ion pairing coefficient in Ho-doped fibers is introduced and validated. Using this method, we link our 57% slope efficiency to a low ion pairing coefficient of 4% in the NRL Ho-doped fiber as derived from our experimental

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Abstract:We report the design and experimental and simulated performance for a 2050 nm band fiber amplifier with high optical-optical slope efficiency and low ion pairing, using a novel high performance single clad Ho-doped fiber from the Naval Research Laboratory (NRL). We measure an optical-optical slope efficiency of 57% using 1 mW input signal power and 1860 nm pumping which we believe is the highest slope efficiency obtained to date for a single clad single stage copumped HDFA. A new method for non-destructive measurement of the ion pairing coefficient in Ho-doped fibers is introduced and validated. Using this method, we link our 57% slope efficiency to a low ion pairing coefficient of 4% in the NRL Ho-doped fiber as derived from our experimental data. We present an overview and survey of the ion pairing results for Ho-doped fiber amplifiers and lasers reported so far in the literature.

Comments: 6 pages, 7 figures, 1 table

Subjects:

Signal Processing (eess.SP); Optics (physics.optics)

Cite as: arXiv:2604.00823 [eess.SP]

(or arXiv:2604.00823v1 [eess.SP] for this version)

https://doi.org/10.48550/arXiv.2604.00823

arXiv-issued DOI via DataCite (pending registration)

Submission history

From: Robert Tench [view email] [v1] Wed, 1 Apr 2026 12:32:19 UTC (536 KB)

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AI 규제 시계 늦춘 유럽의회…CIO, 대응 속도 놓고 딜레마
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