Ytterbium-sensitized Thulium-doped fiber laser in the near-IR with 980 nm pumping

Pal, Anand; Dhar, Anirban; Das, Shyamal; Chen, Shu Ying; Sun, Tao; Sen, Ranjan; Grattan, K. T. V.

doi:10.1364/oe.18.005068

Cited by 30 publications

(17 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Such high aluminum codoping in the core enhanced the solubility of the high concentration of Tm 3 without clustering and reduced the silica glass phonon energy significantly by improving the excited level lifetime of Tm 3 (the measured lifetime of the 3 F 4 level, responsible for the 2 μm emission, is 830 μs). This phenomenon was presented in an earlier publication [10]. The pump absorption at 1.6 μm has a value of around 21 m −1 .…”

Section: Background and Experimentationsupporting

confidence: 61%

“…For the laser resonator operating at 1.875 μm, the reflectivities of the HR FBG and the LR FBG were ∼99.9% and ∼40%, respectively, while for the laser resonator at 1.997 μm, the reflectivities for the HR FBG and the LR FBG were ∼99.9% and ∼80%, respectively. This specific difference was aimed to achieve a lower threshold as the emission cross section of Tm in silica glass is lower at 1.997 μm than that at 1.875 μm [10]. The linewidth of both lasers that was achieved was 0.14 nm, measured by use of the OSA (with a resolution of 0.05 nm).…”

Section: Background and Experimentationmentioning

confidence: 99%

See 1 more Smart Citation

“All-fiber” tunable laser in the 2 μm region, designed for CO₂ detection

et al. 2012

Self Cite

View full text Add to dashboard Cite

A stable and tunable thulium-doped "all-fiber" laser offering a narrow linewidth has been created specifically to act as a compact and simple laser source for gaseous CO 2 detection. This has been done through a careful design to match the laser output wavelengths to the CO 2 absorption lines at 1.875 and 1.997 μm, respectively. A sustainable output power of 11 mW over a tuning range of 7 nm has been obtained by using a combination of a high-reflective fiber Bragg grating with a low-reflective broadband mirror, fabricated at the end of the fiber through silver film deposition. The tuning was achieved using the relaxation-compression mechanism of the fiber Bragg grating, which formed an integral part of the laser resonant cavity. A fiber Bragg grating at 1.548 μm was utilized as a wavelength reference to monitor the tuning of the laser output over the 2 μm wavelength range with a simple and inexpensive interrogator, to avoid the use of an expensive optical spectrum analyzer and to facilitate "in-the-field" operation. This "all-fiber" laser resonator has been shown to be superior in terms of laser tuning range, output power, and linewidth compared to that created with a fiber Bragg grating pair, which was limited by the nonuniform strain transfer to both fiber Bragg gratings.

show abstract

Section: Background and Experimentationsupporting

confidence: 61%

Section: Background and Experimentationmentioning

confidence: 99%

“All-fiber” tunable laser in the 2 μm region, designed for CO₂ detection

et al. 2012

Self Cite

View full text Add to dashboard Cite

show abstract

“…TDFL also known as 'eye-safe' laser because of the laser characteristic that is highly absorbable by water before it reaching the retina [8]- [11]. Thulium has an excellent performance in 2 micron region.…”

Section: Introductionmentioning

confidence: 99%

Q-Switched Ultrafast TDFL Using MWCNTs-SA at 2 µm Region

Ahmad¹,

Latiff²,

Zakaria³

et al. 2014

IJCCE

View full text Add to dashboard Cite

Abstract-We demonstrate an ultrafast TDFL Q-switched pulse in 2 µm wavelength using multi-walled carbon nanotubes (MWCNTs) as passive saturable absorber (SA). MWCNTs film is sandwiched between two fibre connectors or patch cords after deposited with index matching gel on the fibre ferrules. Thulium-doped fibre was pumped using 1552 nm source in the ring cavity. The repetition rate for the pulses can be tuned from 13.33 kHz to 21.07 kHz by varying the pump power from 307.5 mW to 371.4 mW. At the maximum power, the pulse generated energy of 87.34 nJ with full-width at half maximum (FHWM) of 8.21 µs.Index Terms-Multi-walled carbon nanotubes, passive saturabe absorber, Q-switching.

show abstract

“…The laser radiation at wavelengths near 2 fim has an important application such as in medical and military applications and several remote sensing applications [8]. In line with that, the Yb3+ co-doped silica fiber become more important in the area of 2 micron laser application in which Yb3+ ions act as a sensitizer.…”

Section: Introductionmentioning

confidence: 93%

Comparison between the single and dual-pumping method of large mode area Yb³⁺/Tm³⁺ co-doped air-clad fiber laser

Saidin

Damanhuri

Ali

et al. 2013

2013 International Conference on Technology, Informatics, Management, Engineering and Environment

View full text Add to dashboard Cite

The large mode area Yb 3 +/Tm 3 + co-doped air-clad photonic crystal fiber laser (YTD-PCF) is demonstrated using a fiber Bragg grating (FBG) in a linear cavity resonator. The effect on the performance of the lasing efficiency between the two different doping concentrations of the Yb 3 +/Tm 3 + ions is investigated. The newly developed fiber used in this experiment has Yb 3 +/Tm 3 + ion concentration ratio of 4:1 and 2. 5:1. The threshold is obtained at 10 00 mW with a slope efficiency of 0. 96% for higher Yb 3 +/Tm 3 + ion concentration. Result shows that higher Yb 3 + ion concentration gives better performance in terms of lasing's threshold and efficiency. The different types of pumping scheme which is single and dual-pumped have been compared. In the dual-pumping scheme, pump wavelength of 927 nm and 905 nm are used as a main and an auxiliary pump alternately. The high efficiency is attributed to the use of additional 927 nm pump to complement 905 nm pumping. The maximum output power of 11. 7 mW is achieved at the pump power of2500 mW with the optimum length of2 m.Keywords -Yb 3+ /Tm 3+ co-doped air-clad pllOtonic crystal fiber; 2 micron fiber laser; cladding pumping; dual-pumping method.

show abstract

Ytterbium-sensitized Thulium-doped fiber laser in the near-IR with 980 nm pumping

Cited by 30 publications

References 9 publications

“All-fiber” tunable laser in the 2 μm region, designed for CO₂ detection

“All-fiber” tunable laser in the 2 μm region, designed for CO₂ detection

Q-Switched Ultrafast TDFL Using MWCNTs-SA at 2 µm Region

Comparison between the single and dual-pumping method of large mode area Yb³⁺/Tm³⁺ co-doped air-clad fiber laser

Contact Info

Product

Resources

About

Ytterbium-sensitized Thulium-doped fiber laser in the near-IR with 980 nm pumping

Cited by 30 publications

References 9 publications

“All-fiber” tunable laser in the 2 μm region, designed for CO2 detection

“All-fiber” tunable laser in the 2 μm region, designed for CO2 detection

Q-Switched Ultrafast TDFL Using MWCNTs-SA at 2 µm Region

Comparison between the single and dual-pumping method of large mode area Yb3+/Tm3+ co-doped air-clad fiber laser

Contact Info

Product

Resources

About

“All-fiber” tunable laser in the 2 μm region, designed for CO₂ detection

“All-fiber” tunable laser in the 2 μm region, designed for CO₂ detection

Comparison between the single and dual-pumping method of large mode area Yb³⁺/Tm³⁺ co-doped air-clad fiber laser