A cladding-pumped, tunable holmium doped fiber laser

Simakov, Nikita; Hemming, Alexander; Clarkson, W.A.; Haub, John; Carter, Adrian

doi:10.1364/oe.21.028415

Cited by 99 publications

(54 citation statements)

References 19 publications

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“…This is supported by other investigations of 1150 nm pumped holmium-doped fibres [29,30], by the estimate of the gain cross-sections [17] and by the presence of short wavelength ASE in Fig. 5 (b) and Fig.…”

Section: Short Wavelength (<2030 Nm) Operation Of Hdfassupporting

confidence: 85%

“…Holmium-doped fibers have been utilized in a tunable laser operating from 2040 -2171 nm [17], and in a high-Q cavity, a wavelength as long as 2210 nm has been reached [18]. A small-signal holmium-doped fiber amplifier (HDFA) has also recently been demonstrated operating at a specific wavelength of 2100 nm with a reported gain of 28 dB [19].…”

Section: Introductionmentioning

confidence: 99%

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High gain holmium-doped fibre amplifiers

Simakov¹,

Li²,

Jung³

et al. 2016

Opt. Express

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Abstract:We investigate the operation of holmium-doped fibre amplifiers (HDFAs) in the 2.1 µm spectral region. For the first time we demonstrate a diode-pumped HDFA. This amplifier provides a peak gain of 25 dB at 2040 nm with a 15 dB gain window spanning the wavelength range 2030 -2100 nm with an external noise figure (NF) of 4-6 dB. We also compare the operation of HDFAs when pumped at 1950 nm and 2008 nm. The 1950 nm pumped HDFA provides 41 dB peak gain at 2060 nm with 15 dB of gain spanning the wavelength range 2050 -2120 nm and an external NF of 7-10 dB. By pumping at the longer wavelength of 2008 nm the gain bandwidth of the amplifier is shifted to longer wavelengths and using this architecture a HDFA was demonstrated with a peak gain of 39 dB at 2090 nm and 15 dB of gain spanning the wavelength range 2050 -2150 nm. The external NF over this wavelength range was 8-14 dB. nm gain extension towards 1.7 μm for diode-pumped silica-based thulium-doped fiber 2016 Optical Society of America

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Section: Short Wavelength (<2030 Nm) Operation Of Hdfassupporting

confidence: 85%

Section: Introductionmentioning

confidence: 99%

High gain holmium-doped fibre amplifiers

Simakov¹,

Li²,

Jung³

et al. 2016

Opt. Express

Self Cite

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“…Various nonlinear MIR platforms for parametric processes at 2 μm have been proposed in recent years, taking advantage of diode-pumped thulium or holmium doped silica fiber laser [7,8]. To reference their efficiency as a guideline for platform selection, we show in Table 1 the figure of merit (FOM) defined as the ratio of nonlinear coefficient γ to attenuation coefficient α [18].…”

Section: Introductionmentioning

confidence: 99%

Mid-infrared continuous-wave parametric amplification in chalcogenide microstructured fibers

Xing¹,

Grassani²,

Kharitonov³

et al. 2017

Optica

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The persistent growth of interest in the middle infrared (MIR) is stimulating the development of sources and components. Novel waveguides and fibers for the efficient use of nonlinear effects in the MIR are being intensively studied. Highly nonlinear silica fibers have enabled record performances of highly versatile parametric processes in the telecommunication band. However, no waveguiding platforms (to our knowledge) have yet solved the trade-off among high nonlinearity, low propagation losses and dispersion in the MIR. As single waveguide designs have not yet hit this particular optimal point, only pulsed-pumped demonstrations have been carried out, hindering any application requiring narrow linewidth, continuous-wave (c.w.) operation, or signal modulation. Here, we show MIR c.w. parametric amplification in a Ge 10 As 22 Se 68 tapered fiber. Leveraging state-of-the-art fabrication techniques, we use a photonic crystal fiber (PCF) geometry combining high nonlinearity and low dispersion, while maintaining single mode and low losses in the short-wave IR and MIR. We experimentally demonstrate 5 dB signal amplification and 3 dB idler conversion efficiency using only 125 mW of pump in the 2 μm wavelength range. Our result is not only the first c.w. parametric amplification measured at 2 μm in any waveguide, but it also establishes GeAsSe PCF tapers as the most promising all-fibered, high-efficiency parametric converter for advanced applications in the MIR.

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“…Recently, the potential of hollow-core photonic bandgap fibers 8 combined with thulium-doped fiber (TDF) amplifiers 9 for fiber optical telecommunication in the 1910-2020 nm band was reported. Furthermore, the 2-mm spectral range is also widely used to pump holmium-doped fibers 10 or to drive nonlinear processes in the mid-infrared region 11,12 . For most of these applications, a broadly tunable narrow linewidth laser source at 2 mm is required.…”

Section: Introductionmentioning

confidence: 99%

“…All-fiber core-pumped ring cavity TDF lasers (TDFL) exploiting fiberized grating-based filter 13,14 or Fabry-Pérot etalon 15 as a wavelength selective element and high-power cladding pumped holmium-doped fiber lasers 10 have been reported. Tunable sources based on parametric conversion and subsequent amplification in TDFs delivering more than 100 mW of continuous wave power while modulation capable were also recently demonstrated 16 .…”

Section: Introductionmentioning

confidence: 99%

Isolator-free unidirectional thulium-doped fiber laser

Kharitonov

Brès

2015

Light Sci Appl

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We report the first demonstration of a unidirectional, isolator-free 2-mm thulium-doped fiber (TDF) laser, relying on the properties of the theta cavity (ring resonator with S-shaped feedback). The core pumped theta cavity TDF laser provides sub-Watt output power with a slope efficiency of 25%, a 2 dB flat tuning range of 1900-2050 nm, and a linewidth of 0.2 nm, and achieves the extinction ratio of 18-25 dB (depending on the feedback value) between the favored and suppressed lasing directions. It is shown that these characteristics are competitive with, if not superior to, those of conventional ring cavities. The simulation results of the linear and Kerr-nonlinear theta cavities are also presented, explaining certain unexpected features of the laser behavior and establishing the importance of the doped fiber nonlinearity on the spectral shaping of the emitted signal.

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A cladding-pumped, tunable holmium doped fiber laser

Cited by 99 publications

References 19 publications

High gain holmium-doped fibre amplifiers

High gain holmium-doped fibre amplifiers

Mid-infrared continuous-wave parametric amplification in chalcogenide microstructured fibers

Isolator-free unidirectional thulium-doped fiber laser

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