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Ultrashort pulse

About: Ultrashort pulse is a(n) research topic. Over the lifetime, 23140 publication(s) have been published within this topic receiving 476598 citation(s).

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Papers
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Journal ArticleDOI: 10.1016/0030-4018(85)90120-8
Donna Strickland1, Gerard Mourou1Institutions (1)
Abstract: We have demonstrated the amplification and subsequent recompression of optical chirped pulses. A system which produces 1.06 μm laser pulses with pulse widths of 2 ps and energies at the millijoule level is presented.

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Topics: Ultrashort pulse (64%), Chirped pulse amplification (61%), Regenerative amplification (58%) ...read more

3,637 Citations


Journal ArticleDOI: 10.1038/416233A
14 Mar 2002-Nature
Abstract: Extremely narrow optical resonances in cold atoms or single trapped ions can be measured with high resolution. A laser locked to such a narrow optical resonance could serve as a highly stable oscillator for an all-optical atomic clock. However, until recently there was no reliable clockwork mechanism that could count optical frequencies of hundreds of terahertz. Techniques using femtosecond-laser frequency combs, developed within the past few years, have solved this problem. The ability to count optical oscillations of more than 1015 cycles per second facilitates high-precision optical spectroscopy, and has led to the construction of an all-optical atomic clock that is expected eventually to outperform today's state-of-the-art caesium clocks.

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Topics: Atomic clock (62%), Frequency comb (55%), Laser (52%) ...read more

2,395 Citations


Journal ArticleDOI: 10.1063/1.1150614
Abstract: We review the field of femtosecond pulse shaping, in which Fourier synthesis methods are used to generate nearly arbitrarily shaped ultrafast optical wave forms according to user specification. An emphasis is placed on programmable pulse shaping methods based on the use of spatial light modulators. After outlining the fundamental principles of pulse shaping, we then present a detailed discussion of pulse shaping using several different types of spatial light modulators. Finally, new research directions in pulse shaping, and applications of pulse shaping to optical communications, biomedical optical imaging, high power laser amplifiers, quantum control, and laser-electron beam interactions are reviewed.

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Topics: Femtosecond pulse shaping (79%), Pulse shaping (64%), Ultrashort pulse (63%) ...read more

2,011 Citations


Journal ArticleDOI: 10.1002/ADFM.200901007
Qiaoliang Bao1, Han Zhang2, Yu Wang1, Zhenhua Ni2  +4 moreInstitutions (2)
Abstract: The optical conductance of monolayer graphene is defined solely by the fine structure constant, α = (where e is the electron charge, is Dirac's constant and c is the speed of light). The absorbance has been predicted to be independent of frequency. In principle, the interband optical absorption in zero-gap graphene could be saturated readily under strong excitation due to Pauli blocking. Here, use of atomic layer graphene as saturable absorber in a mode-locked fiber laser for the generation of ultrashort soliton pulses (756 fs) at the telecommunication band is demonstrated. The modulation depth can be tuned in a wide range from 66.5% to 6.2% by varying the graphene thickness. These results suggest that ultrathin graphene films are potentially useful as optical elements in fiber lasers. Graphene as a laser mode locker can have many merits such as lower saturation intensity, ultrafast recovery time, tunable modulation depth, and wideband tunability.

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Topics: Saturable absorption (66%), Graphene nanoribbons (63%), Graphene (61%) ...read more

1,968 Citations


Open accessPosted Content
30 Oct 2009-arXiv: Optics
Abstract: The optical conductance of monolayer graphene is defined solely by the fine structure constant. The absorbance has been predicted to be independent of frequency. In principle, the interband optical absorption in zero-gap graphene could be saturated readily under strong excitation due to Pauli blocking. Here, we demonstrate the use of atomic layer graphene as saturable absorber in a mode-locked fiber laser for the generation of ultrashort soliton pulses (756 fs) at the telecommunication band. The modulation depth can be tuned in a wide range from 66.5% to 6.2% by varying the thickness of graphene. Our results suggest that ultrathin graphene films are potentially useful as optical elements in fiber lasers. Graphene as a laser mode locker can have many merits such as lower saturation intensity, ultrafast recovery time, tunable modulation depth and wideband tuneability.

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Topics: Saturable absorption (65%), Graphene (60%), Fiber laser (60%) ...read more

1,860 Citations


Performance
Metrics
No. of papers in the topic in previous years
YearPapers
202219
2021710
2020877
2019895
2018781
2017966

Top Attributes

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Topic's top 5 most impactful authors

Andreas Tünnermann

192 papers, 4.4K citations

Jens Limpert

189 papers, 3.9K citations

Andrew M. Weiner

163 papers, 9.1K citations

Ursula Keller

135 papers, 10.1K citations

Rick Trebino

130 papers, 6.9K citations

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