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Watt-Level High-Efficiency Deep-Red Ho3+:ZBLAN Fiber Laser

To date, Ho 3+ -doped fluoride fibers have been investigated as a viable route for deep-red fiber lasers. However, high output performance deep-red fiber lasers around 750 nm have been proven challenging to achieve due to limitations in both the excitation source and pumping mechanism. In this study, we use a home-made 640 nm pump source to develop a deep-red laser with a high pumping rate, and obtain a compact watt-level high efficiency deep-red laser output. Population inversion is achieved by strong excited state absorption in a Ho 3+ -doped ZBLAN fiber. We realize a maximum 1.46 W deep-red fiber laser operating at 752.6 nm, and its slope efficiency is as high as 53%. The improved rate equations are used to describe the quasi-four-level system, and the experimental results agree well with the simulations. Moreover, with the development of blazed grating, we demonstrate a tunable deep-red fiber laser with a tuning range of 13.7 nm, from 746.5 to 760.2 nm, which is the widest tuning range of Ho 3+ -doped fiber laser at deep-red wavelengths.

Ketersediaan

Informasi Detail

Judul Seri

JOURNAL OF LIGHTWAVE TECHNOLOGY; Vol.41 No.1 January 1 2023

No. Panggil

-

Penerbit

: .,

Deskripsi Fisik

p. 301-306

Bahasa

English

ISBN/ISSN

-

Klasifikasi

NONE

Tipe Isi

-

Tipe Media

-

Tipe Pembawa

-

Edisi

-

Subjek

WAVELENGTH TUNABLE
HIGH PERFORMANCES
HO {3+} -DOPED FIBER
VISIBLE LASERS

Info Detail Spesifik

DOI: 10.1109/JLT.2022.3211182

Pernyataan Tanggungjawab

Shuaihao Ji, Shuhua Huang, Zhongyu Wang, Xiuji Lin, Bo Xiao, Huiying Xu, Zhiping Cai

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