1.9 µm Tm-doped silica fibre laser pumped at 1.57 µm

Yamamoto, Takashi; Miyajima, Y.; Komukai, T.

doi:10.1049/el:19940135

Cited by 55 publications

(25 citation statements)

References 6 publications

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“…Very little work has been reported in the area of tellurite fiber lasers at wavelengths beyond 1560 nm, where there is a high demand for new compact laser systems with medium power for applications, such as chemical and remote sensing, medicine, atmospheric monitoring, and eye-safe lidar. A 1.57 mE r 3+ -doped silica fiber laser was previously been used to pump Tm 3+ ions in a silica fiber to produce lasing at 1.9 m. In this case the 1.57 m pump was very close to the absorption peak of the Tm 3+ : 3 H 6 → 3 F 4 transition, and a slope efficiency of 71% was achieved [6]. The low phonon energy of tellurite glass compared to silicate hosts is manifested by prolonged lifetimes of the 3 F 4 level in tellurite, which is 2.4 ms compared with 630 si n silicates, and suggests that a laser device based on a tellurite fiber should have a lower laser threshold and higher slope efficiency for a ϳ2 m laser.…”

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confidence: 99%

Efficient ~2 μm Tm^3+-doped tellurite fiber laser

et al. 2008

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confidence: 99%

Efficient ~2 μm Tm^3+-doped tellurite fiber laser

et al. 2008

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“…Tm-doped fibers with low output power (<20mW). pumped near 1.6 µm, with slope efficiency as high as 71 % (for silica fibers [15]) and 84 % (for fluoride fibers [16]) have been reported previously. As far as we are aware, this approach for power scaling of Tm-doped fiber lasers has not attracted much interest, perhaps, because it requires a high power Er,Yb fiber source.…”

Section: Introductionmentioning

confidence: 90%

Tm Doped Fiber Laser Pumped by a Cladding-Pumped Er, Yb Fiber Laser

Clarkson¹

2006

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Public reporting burden for this collection of information is estimated to average 1 hour per response, including the time for reviewing instructions, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing the collection of information. Send comments regarding this burden estimate or any other aspect of this collection of information, including suggestions for reducing the burden, to Department of Defense, Washington Headquarters Services, Directorate for Information PERFORMING ORGANIZATION NAME(S) AND ADDRESS(ES)University of Southampton Southampton SO17 1BJ United Kingdom PERFORMING ORGANIZATION REPORT NUMBERN/A SPONSOR/MONITOR'S ACRONYM(S) 9. SPONSORING/MONITORING AGENCY NAME(S) AND ADDRESS(ES)EOARD PSC 821 BOX 14 FPO 09421-0014 SPONSOR/MONITOR'S REPORT NUMBER(S)Grant 03-3057 DISTRIBUTION/AVAILABILITY STATEMENTApproved for public release; distribution is unlimited. SUPPLEMENTARY NOTES ABSTRACTThis report results from a contract tasking University of Southampton as follows: The Grantee will investigate a) optimization of the claddingpumped Er-Yb doped fiber laser (EYDFL) for efficient pumping of Tm-doped fibers. b) Investigation of core-pumping of Tm-doped fibers using the EYDFL developed in task a, c) design, fabrication and demonstration of a high-power, core-pumped, multimode Tm-doped fiber laser, and d) demonstration of high-power, single-mode output from the core-pumped Tm-doped fiber laser. SUBJECT TERMS

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“…They can efficiently pumped at ∼ 790, ∼ 1200, or ∼ 1600 nm [14][15][16][17] , similar to the case of ytterbium erbium doped fiber [19][20]. In this paper, a thulium ytterbium co-doped fiber laser (TYDFL) is demonstrated by using a newly developed double-clad Tm 3+ /Yb 3+ co-doped alumino-silicate fiber (TYDF) as a gain medium.…”

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confidence: 88%