Advanced components for multi-kW fiber lasers

Sipes, Donald L.; Tafoya, Jason D.; Schulz, D.; Ward, Benjamin G.; Carlson, C. W.

doi:10.1117/12.909337

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Slope Efficiency1

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Cited by 5 publications

(2 citation statements)

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“…PCFs have been shown to support high peak power up to megawatt level, but are difficult to splice to both other PCFs and standard fibers due to their microstructure and are often used with free-space optics. This has hampered to some extent their insertion in rugged field-deployed devices, although specialty pump couplers designed for use with PCF have recently been demonstrated [42]. The longitudinally tapered fiber discussed in this article is, instead, easily spliced to standard fiber and can tightly coiled (15 cm diameter).…”

Section: Discussionmentioning

confidence: 98%

High-power ns-pulse fiber laser sources for remote sensors

Teodoro¹,

Belden²,

Ionov³

et al. 2014

Optical Fiber Technology

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Section: Discussionmentioning

confidence: 98%

High-power ns-pulse fiber laser sources for remote sensors

Teodoro¹,

Belden²,

Ionov³

et al. 2014

Optical Fiber Technology

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“…A similarly produced combiner in [8] had 92 % pump coupling, thus this pump combiner should allow equivalent efficiencies. To examine this, we used an InSb camera (FLIR SC7000) to view the pump combiner thermally, as seen in Fig.…”

Section: Slope Efficiencymentioning

confidence: 98%

Photonic crystal fiber pump combiner for high-peak power all-fiber thulium lasers

et al. 2014

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We report on the performance of a prototype pump combiner for use with thulium-doped photonic crystal fiber (PCF). This platform is attractive for "all-fiber" high energy and high peak power laser sources at 2 µm. We will report on the performance of this integrated amplifier in comparison to free space amplification in Tm:PCF. In particular, we carefully look for spectral/temporal modulation resulting from multimode interference between fundamental and higher order transverse modes in the amplifier to evaluate this for ultrashort chirped pulse amplification. The slope efficiency for the all-fiber amplifier is 22.1 %, indicating the need for further improvement. However, an M 2 < 1.07 demonstrates excellent beam quality, as well as amplified polarization extinction ratios of ~25 dB.

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