Nonlinear phase changes at 1310 nm and 1545 nm observed far from resonance in diode pumped ytterbium doped fiber

Arkwright, John W.; Elango, P.; Whitbread, T.; Atkins, G.R.

doi:10.1109/68.481133

Cited by 33 publications

(9 citation statements)

References 8 publications

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“…Yb 3 -doped, channel, waveguide lasers have also been reported in gadolinium gallium garnet [24] and lithium niobate [25]. In addition, low-power, all-optical, switching devices have been demonstrated in Yb 3 -doped optical fibers [26] and planar waveguides [27] based on pump-induced resonant nonlinearities at 1301 and 1545 nm. This paper reports (to the best of our knowledge) the first demonstration of a Yb 3 -doped channel waveguide laser in a glass host.…”

Section: Introductionmentioning

confidence: 99%

Ytterbium-doped glass waveguide laser fabricated by ion exchange

Florea

Winick

1999

J. Lightwave Technol.

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Abstract-A ytterbium-doped, glass, channel waveguide laser, fabricated by ion exchange, is reported. The 2.2-cm long device, using broad-band 4% output couplers, lased in the vicinity from 1020 to 1030 nm when pumped by a Ti : sapphire laser operating at 910 nm. A lasing threshold of 50 mW (launched pump) and a slope efficiency of 5% were measured. Device parameters, including fluorescence lifetimes, emission and absorption cross sections, propagation losses, and mode profiles were experimentally determined and laser performance was analytically modeled using this data.

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Section: Introductionmentioning

confidence: 99%

Ytterbium-doped glass waveguide laser fabricated by ion exchange

Florea

Winick

1999

J. Lightwave Technol.

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“…The pump pulse widths in Fig. 4a are (1-6) 31.5, (7-11) 9.4, (12) 4.63, and (13,14) 0.94 ms. Here, we observe a nonmonotonic dependence of the threshold phase difference on the pump power.…”

Section: Resultsmentioning

confidence: 99%

“…This RIC mechanism will be referred to as electronic. The dependence of the refractive index on the pop ulation of active medium levels affects the spatial las ing characteristics in bulk solid laser media [9] and leads to the occurrence of resonant dispersion in erbium doped fiber amplifiers [4,[12][13][14].…”

Section: Mechanisms Of Refractive Index Change In Active Optical Fibementioning

confidence: 99%

Kinetics of the refractive index change in the core of active fibers, doped with Yb3+ and Er3+ ions, under pulsed optical pumping

Gainov

Ryabushkin

2012

Opt. Spectrosc.

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The kinetics of refractive index change (RIC) in the core of Yb 3+ /Er 3+ fibers at a radiation wave length lying beyond the range of resonant absorption of active ions under pulsed pumping of fiber laser has been analyzed. The measurement of RIC kinetics with a Mach-Zehnder interferometer makes it possible to separate the contributions of the electronic and thermal RIC mechanisms and determine quantitatively the temperature profile inhomogeneity in the fiber. The measured values are compared with the numerical esti mates derived from the spectral properties of the active medium in order to check the modern models of RIC in active fibers.

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“…In this case, the Kramers-Krönig relations provide that any change in absorption or gain at any wavelength induces a refractive index shift (albeit minutely small) at all wavelengths. (See references [9][10][11] for information regarding the contribution of vacuum-ultraviolet transitions to the measured refractive index shift in the near infrared). In the aforementioned FBGtuning experiments, the technique was applied for switching a passive signal, and the tuning range and tuning speeds were limited, which was determined to be due to the relative strength and time-scales of the thermal and populationinversion contributions to the refractive index shift.…”

Section: Introductionmentioning

confidence: 99%

Optically switched erbium fiber laser using a tunable fiber-Bragg grating

et al. 2010

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The ability to tune the Bragg wavelength of a fibre-Bragg grating (FBG) in an all-fibre laser can offer added functionality such as laser wavelength tunability, polarization selectivity, 1 and Q-switching. 2 Compared to current techniques which rely on mechanically straining the FBG to achieve Bragg-wavelength tunability, an all-optical technique for tuning an FBG offers potentially faster switching speeds and a more robust and simple cavity. All-optical tuning of the Bragg wavelength of an FBG has been demonstrated previously by resonant optical pumping; however this technique has only been applied to passive systems for switching applications. 3 In this work, we have further investigated this optical-tuning process, experimentally identifying three time-scale regimes, and optimised it for application to active systems. Furthermore, we constructed an erbium all-fibre laser cavity consisting of an outputcoupler FBG and an optically-tunable, high-reflector FBG. The cavity pumping and the optical tuning of the FBG were kept independent. By repetitively tuning the high-reflector FBG on-and off-resonance with the output-coupler FBG, we actively Q-switched the erbium fibre laser at repetition rates up to 35 kHz, limited only by our diode driver. We show that grating tuning at >300 kHz is possible with the existing embodiment, and discuss further potential to operate at MHz rates.

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Nonlinear phase changes at 1310 nm and 1545 nm observed far from resonance in diode pumped ytterbium doped fiber

Cited by 33 publications

References 8 publications

Ytterbium-doped glass waveguide laser fabricated by ion exchange

Ytterbium-doped glass waveguide laser fabricated by ion exchange

Kinetics of the refractive index change in the core of active fibers, doped with Yb3+ and Er3+ ions, under pulsed optical pumping

Optically switched erbium fiber laser using a tunable fiber-Bragg grating

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