Modulation instability initiated high power all-fiber supercontinuum lasers and their applications

Alexander, Vinay V.; Kulkarni, Ojas P.; Kumar, Madhav; Xia, Chenan; Islam, M. N.; Terry, Fred L.; Welsh, Michael J.; Ke, Kevin; Freeman, M. J.; Neelakandan, Manickam; Chan, Allan

doi:10.1016/j.yofte.2012.07.014

Cited by 65 publications

(30 citation statements)

References 83 publications

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“…Self-phase modulation (SPM) then induces spectral broadening which is further amplified by the available gain from the MI due to the increased peak power associated with the MI pulse train and the operation in the anomalous dispersion region. These effects are typically characterised by the appearance of sidebands in the spectrum spread symmetrically around the initial frequency of the pulse [52].…”

Section: Pulsed Holmium Sourcesmentioning

confidence: 99%

A review of recent progress in holmium-doped silica fibre sources

Hemming

Simakov

Haub

et al. 2014

Optical Fiber Technology

110

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Section: Pulsed Holmium Sourcesmentioning

confidence: 99%

A review of recent progress in holmium-doped silica fibre sources

Hemming

Simakov

Haub

et al. 2014

Optical Fiber Technology

110

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“…fluoride, tellurite, or chalcogenide) is a promising approach to meet the increasing demands for broadband, high-brightness mid-IR radiation in various application areas, e.g. molecular fingerprinting, chemical sensing or gas detection (see section IV.C) [54,55]. Of all possible materials, heavy metal fluoride glass (ZBLAN) is currently the most attractive choice for constructing practical SCG sources due to its high transparency up to ~ 4.5 µm wavelength, the maturity of the fiber fabrication technology and the commercial availability of highly nonlinear ZBLAN fibers with the required small core diameters.…”

Section: B Mid-ir Supercontinuum Generationmentioning

confidence: 99%

“…Pumping at wavelengths longer than the ZDW in the anomalous dispersion region is advantageous for efficient SCG, and 2 µm pumping in particular leads to an optimization of both bandwidth and conversion efficiency [67]. Prior to this work, however, diode-pumped mid-IR SCG sources had to be based on 1550 nm seed-diodes and therefore had to rely on either nonlinear methods or the use of intermediate pulse-pumped TDF laser cavities to convert to longer pumping wavelengths [55,56,68]. Using the MOPA systems presented here, it is now possible to implement the direct picosecond diode-pumping of ZBLAN fibers at 2 µm, which represents a significant improvement in terms of system simplicity, reliability, and stability compared to previous diode-pumped mid-IR sources [69].…”

Section: B Mid-ir Supercontinuum Generationmentioning

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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“…However, unlike conventional lasers, SCLs possess a broad spectral bandwidth. 7 Additionally, the spectral power density of the SCL can be engineered to produce sources with power over a predefined wavelength range, providing improved energy efficiency when compared to lamp sources. With the advent and continued development of high-powered SCLs, these sources provide a candidate for use in developing an "active HSI" system.…”

Section: Introductionmentioning

confidence: 99%

Tower testing of a 64W shortwave infrared supercontinuum laser for use as a hyperspectral imaging illuminator

et al. 2014

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Hyperspectral imaging systems are currently used for numerous activities related to spectral identification of materials. These passive imaging systems rely on naturally reflected/emitted radiation as the source of the signal. Thermal infrared systems measure radiation emitted from objects in the scene. As such, they can operate at both day and night. However, visible through shortwave infrared systems measure solar illumination reflected from objects. As a result, their use is limited to daytime applications. Omni Sciences has produced high powered broadband shortwave infrared super-continuum laser illuminators. A 64-watt breadboard system was recently packaged and tested at Wright-Patterson Air Force Base to gauge beam quality and to serve as a proof-of-concept for potential use as an illuminator for a hyperspectral receiver. The laser illuminator was placed in a tower and directed along a 1.4km slant path to various target materials with reflected radiation measured with both a broadband camera and a hyperspectral imaging system to gauge performance.

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Modulation instability initiated high power all-fiber supercontinuum lasers and their applications

Cited by 65 publications

References 83 publications

A review of recent progress in holmium-doped silica fibre sources

A review of recent progress in holmium-doped silica fibre sources

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

Tower testing of a 64W shortwave infrared supercontinuum laser for use as a hyperspectral imaging illuminator

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