High-peak-power, high-energy, high-average-power pulsed fiber laser system with versatile pulse duration and shape

Malinowski, A.; Gorman, Philip M.; Codemard, Christophe A.; Ghiringhelli, F.; Boyland, A.J.; Marshall, A.; Zervas, M.N.; Durkin, M.

doi:10.1364/ol.38.004686

Cited by 52 publications

(22 citation statements)

References 16 publications

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“…As shown in Fig. 22,23 As expected from the large-core, single-mode PCF used as the final amplifier, the output beam exhibits excellent spectral and spatial quality [Figs. Figure 8 provides an example of the pulse formatting agility afforded by the MOPA architectures described in this article.…”

Section: High-power Results and Discussionmentioning

confidence: 93%

Development of pulsed fiber lasers for long-range remote sensing

et al. 2014

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Pulsed fiber lasers bear great promise as optical transmitters for remote sensors, having tight size, power consumption, and ruggedness constraints. We discuss recently introduced laser architectures and components supporting power scaling of efficient fiber-based laser sources for long-range operation consistent with imaging and/or spectroscopic sensing from high-altitude and space-based platforms.

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Section: High-power Results and Discussionmentioning

confidence: 93%

Development of pulsed fiber lasers for long-range remote sensing

et al. 2014

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“…The pulse duration reduced to 6 ns at maximum output average power. The pulse distortion due to the high gain and modest saturation energies of fiber amplifiers which causes the leading edge of the long nanosecond pulse experiences a higher gain than the trailing edge [9][10][11]. This deformation of the pulse shape results in the reduced FWHM pulse durations and increased pulse peak power, which corresponds to 6 ns pulse duration and 6.7 kW pulse peak power at 4 MHz repetition rate.…”

Section: Experimental Setup and Resultsmentioning

confidence: 99%

160 W average power single-polarization, nanosecond pulses generation from diode-seeded thulium-doped all fiber MOPA system

Shi

Liu

et al. 2015

SPIE Proceedings

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We demonstrate high average power all-fiber single-polarization thulium(Tm)-doped nanosecond laser based on all-fiber master-oscillator power-amplifier (MOPA).The seed source employed is a directly modulated discrete-mode (DM) diode at 2 μm with pulse width of 15.8 ns and tunable repetition rate range of 400 kHz to 4 MHz. The pulse duration reduced to 6 ns as the gain reshaping during amplification. The MOPA yields 160 W maximum average powers at 4 MHz repetition with 6 ns pulse width, with respect to pulse energy of 40 μJ and peak-power of 6.7 kW. The slope efficiency for the last stage of PM LMA Tm-doped fiber amplifier was 48.8% with respect to launched pump power. The polarization extinction ratio (PER) of system measured at maximum output power is beyond 15 dB. The beam quality factor M 2 was measured to be 1.5 at average output power of 160 W. To the best of our knowledge, this is the highest average power 2 μm nanosecond pulses laser from laser diode seeded all-fiber MOPA systems to date.

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“…Alexander M. Heidt, Zhihong Li, and David J. Richardson S such diode-seeded laser systems have enabled pulse-shaping in the pico-and nanosecond regime for the compensation of gain saturation effects or the generation of user-defined pulse shapes in material processing [19,20]. In the 2 µm wavelength region, however, these concepts have yet to be properly exploited.…”

Section: High Power Diode-seeded Fiber Amplifiers At 2 µM -From Archimentioning

confidence: 99%

High Power Diode-Seeded Fiber Amplifiers at 2 μm—From Architectures to Applications

Heidt

Richardson

2014

IEEE J. Select. Topics Quantum Electron.

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Abstract-We review recent advances in the development of high power short-and ultrashort pulsed Thulium-doped fiber amplifier (TDFA) systems seeded by semiconductor laser diodes at wavelengths around 2 µm. The diode-seeding and the master oscillator power amplifier (MOPA) design allow for the construction of extremely versatile laser systems that can operate over wide ranges of peak power, pulse energy and repetition rate in the ultrashort picosecond to the long nanosecond pulsed regimes. We present a record peak power of 130 kW and pulse energy of 5 µJ in picosecond mode, while demonstrating user-defined pulse-shaping capabilities at millijoule pulse energy levels in the nanosecond regime from essentially the same amplifier system. The system architecture as well as important design and power scaling considerations are discussed in detail. Additionally, we highlight recent results in the application of these MOPA systems and their high performance TDFA stages in such diverse application areas as next generation telecommunication networks, mid-infrared supercontinuum generation and mid-infrared gas detection in hollow-core photonic bandgap fibers.

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High-peak-power, high-energy, high-average-power pulsed fiber laser system with versatile pulse duration and shape

Cited by 52 publications

References 16 publications

Development of pulsed fiber lasers for long-range remote sensing

Development of pulsed fiber lasers for long-range remote sensing

160 W average power single-polarization, nanosecond pulses generation from diode-seeded thulium-doped all fiber MOPA system

High Power Diode-Seeded Fiber Amplifiers at 2 μm—From Architectures to Applications

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