Femtosecond fiber lasers reach the mid-infrared

Duval, Simon; Bernier, Martin; Fortin, Vincent; Genest, Jérôme; Piché, Michel; Vallée, Réal

doi:10.1364/optica.2.000623

Cited by 206 publications

(89 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…ZBLAN) fiber doped with erbium (Er) and holmium (Ho) ions to generate pulses in the 2.7-2.9 µm range [2]. In terms of mode-locking mechanisms, real saturable absorbers (SAs) such as semiconductor films [3][4][5] and nanomaterials [6] have been employed to generate self-starting picosecond pulses, while pulse durations as short as 180 fs (with energies exceeding 7 nJ) have been achieved using nonlinear polarization evolution (NPE-an artificial SA) in ring cavity designs [7,8]. Mode-locked mid-IR fiber lasers to date, however, have only scratched the surface of the mid-IR region, failing to satisfy the need for flexible short-pulse sources beyond 3 µm.…”

Section: Introductionmentioning

confidence: 99%

Mode-locked dysprosium fiber laser: Picosecond pulse generation from 2.97 to 3.30 μm

2018

View full text Add to dashboard Cite

Mode-locked fiber laser technology to date has been limited to sub-3 µm wavelengths, despite significant application-driven demand for compact picosecond and femtosecond pulse sources at longer wavelengths. Erbium-and holmium-doped fluoride fiber lasers incorporating a saturable absorber are emerging as promising pulse sources for 2.7-2.9 µm, yet it remains a major challenge to extend this coverage. Here, we propose a new approach using dysprosium-doped fiber with frequency shifted feedback (FSF). Using a simple linear cavity with an acousto-optic tunable filter, we generate ∼33 ps pulses with up to 2.7 nJ energy and 330 nm tunability from 2.97 to 3.30 µm (∼3000-3400 cm −1 )-the first mode-locked fiber laser to cover this spectral region and the most broadly tunable pulsed fiber laser to date. Numerical simulations show excellent agreement with experiments and also offer new insights into the underlying dynamics of FSF pulse generation. This highlights the remarkable potential of both dysprosium as a gain material and FSF for versatile pulse generation, opening new opportunities for mid-IR laser development and practical applications outside the laboratory.

show abstract

Section: Introductionmentioning

confidence: 99%

Mode-locked dysprosium fiber laser: Picosecond pulse generation from 2.97 to 3.30 μm

2018

View full text Add to dashboard Cite

show abstract

“…The interplay between intra-and intercycle structures is present in the JES for all wavelengths considered, but is especially clear using wavelength close to the midinfrared. Intense, midinfrared pulses are currently developed [13][14][15][16] stimulated by the λ 2 scaling of the HHG and ATI cutoffs of importance for sub-attosecond pulse generation [17,18], strong-field holography [19,20] and laser-induced electron diffraction [15,21].…”

mentioning

confidence: 99%

Inter- and intracycle interference effects in strong-field dissociative ionization

Yue

Madsen

2016

Phys. Rev. A

View full text Add to dashboard Cite

We theoretically study dissociative ionization of H + 2 exposed to strong linearly polarized few-cycle visible, near-infrared and near-midinfrared laser pulses. We find rich energy-sharing structures in the combined electron and nuclear kinetic energy spectra with features that are a priori at odds with simple energy conservation arguments. We explain the structures as interferences between wave packets released during different optical cycles, and during the same optical cycle, respectively. Both inter-and intracycle interference structures are clearly visible in the joint energy spectra. The shapes of the interference structures depend on the dynamics leading to the double continuum, and carry sub-femtosecond information.

show abstract

“…Nonlinear polarization rotation (NPR), one of the artificial SAs, has been usually employed in 3.0-m mode-locked fluoride fiber lasers for femtosecond pulse generation [36,37]. However, due to the small gain of fluoride fiber at 3.5 m and large loss of optical elements in this spectral region, it is challenging to achieve mode-locking operation based on NPR at 3.5 m.…”

Section: Cw Mode-locking Operation Of Er:zblan Fiber Laser With Bp Sammentioning

confidence: 99%

Black phosphorus Q-switched and mode-locked mid-infrared Er:ZBLAN fiber laser at 35 μm wavelength

et al. 2018

View full text Add to dashboard Cite

With the proposal of dual-wavelength pumping (DWP) scheme, DWP Er:ZBLAN fiber lasers at 3.5 μm have become a fascinating area of research. However, limited by the absence of suitable saturable absorber, passively Q-switched and mode-locked fiber lasers have not been realized in this spectral region. Based on the layer-dependent bandgap and excellent photoelectric characteristics of black phosphorus (BP), BP is a promising candidate for saturable absorber near 3.5 μm. Here, we fabricated a 3.5-μm saturable absorber mirror (SAM) by transferring BP flakes onto a Au-coated mirror. With the as-prepared BP SAM, we realized Q-switching and mode-locking operations in the DWP Er:ZBLAN fiber lasers at 3.5 μm. To the best of our knowledge, it is the first time to achieve passively Q-switched and mode-locked pulses in 3.5 μm spectral region. The research results will not only promote the development of 3.5-μm pulsed fiber lasers but also open the photonics application of two-dimensional materials in this spectral region.

show abstract

Femtosecond fiber lasers reach the mid-infrared

Cited by 206 publications

References 23 publications

Mode-locked dysprosium fiber laser: Picosecond pulse generation from 2.97 to 3.30 μm

Mode-locked dysprosium fiber laser: Picosecond pulse generation from 2.97 to 3.30 μm

Inter- and intracycle interference effects in strong-field dissociative ionization

Black phosphorus Q-switched and mode-locked mid-infrared Er:ZBLAN fiber laser at 35 μm wavelength

Contact Info

Product

Resources

About