Mode Locking Behavior of Gas Lasers in Long Cavities

McClure, R.

doi:10.1063/1.1754350

Cited by 32 publications

(4 citation statements)

References 2 publications

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“…Early experiments on this 'spontaneous' mode-locking phenomenon were conducted on He-Ne (Crowell 1965, McClure 1965, Nash 1967, Uchida and Ueki 1967, ruby (Statz and Tang 1965, Michon et a1 1966, Mack 1968) and Ar+ laser systems (Gaddy and Schaefer 1966). Many of the results are somewhat confusing, partly because spontaneous mode-locking (SML) is a weak and unreliable process, but also because in the mid-l960s, mode-locking phenomena in general were poorly understood.…”

Section: General Remarksmentioning

confidence: 99%

The generation of ultrashort laser pulses

New

1983

Rep. Prog. Phys.

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Ultrashort laser pulses are finding increasing application in numerous branches of science and technology. This article is an attempt to provide a comprehensive review of the whole field of ultrashort pulse generation, covering both the experimental and the theoretical aspects of the subject. By far the commonest method of generating pulses in the picosecond and subpicosecond regime is the technique known as 'modelocking' and it is with this that the review is therefore largely concerned. After introductory remarks and a simple treatment of some of the general principles, the central sections of the review deal with the main generic techniques, namely spontaneous mode-locking, active mode-locking (including mode-locking by synchronous pumping) and passive mode-locking. Within each section the material is organised into three main categories, namely ( a ) general background, ( b ) historical survey (mainly relating to experimental work and densely packed with references to published work) and (c) theoretical methods (presented with a strongly pedagogical flavour). A major section at the end deals with a mass of important (and mostly recent) work that does not fit naturally into the main framework of the review. This includes USP generation in semiconductor lasers, a number of special methods such as injection mode-locking (and others where two or more mode-locking techniques are combined), as well as chopping and switching techniques.

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Section: General Remarksmentioning

confidence: 99%

The generation of ultrashort laser pulses

New

1983

Rep. Prog. Phys.

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“…

IntroductionUltrafast lasers, which can generate optical pulses with duration from picosecond to femtosecond range, have been long proposed and studied since the time not far from the first laser demonstration by Maiman [1,2]. Compared with their continuous-wave (CW) counterparts, ultrafast lasers have advantages in many aspects including short pulse duration, high peak power, and broad spectral width.

…”

mentioning

confidence: 99%

Ultrafast Raman fiber laser: a review and prospect

Zhou

Pan

et al. 2022

PhotoniX

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Ultrafast Raman fiber laser has been proved to be an effective method to obtain ultrafast optical pulses at special wavelength. Yet, compared with conventional rare-earth doped counterparts, it is challenging for Raman fiber lasers to generate pulses with high pulse energy and short pulse duration. Here, we review three categories of ultrafast Raman fiber laser technologies and give detailed discussions on the advantages and challenges of each. In regards to mode-locking, different saturable-absorbers-based fiber lasers are compared and their common problem resulting from long cavity length are discussed. In terms of synchronously-pumping, several approaches to match the repetition rate of pulsed pump with the length of Raman fiber cavity are discussed, while the technical complexity of each method is analyzed. Moreover, the recently developed technology termed as nonlinear optical gain modulation (NOGM) is introduced, which turns out to be a simple and quality solution to generate high-energy femtosecond pulses with wavelength agility. Compared with the others, NOGM gathers various advantages including simple structure, long-term stability, high pulse energy and short pulse duration, which may effectively promote application expansion of ultrafast Raman fiber laser in the near future.

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“…The cavity length of a laser resonator plays an important role in determining the temporal intensity profile of the laser output pulse(s) in both passively Q-switched and passively Q-switch mode locked (QSML) solid state lasers [1][2][3][4][5][6][7]. Cavity length can influence pulse width and or repetition rate and determine whether a single, modulated, or burst of pulses underneath an envelope is generated.…”

Section: Introductionmentioning

confidence: 99%

Cavity length dependence of mode beating in passively Q-switched Nd-solid state lasers.

Zameroski¹,

Wanke²,

Bossert³

2012

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The beat frequencies, temporal intensity profile, and modulation depth of a flash lamp pumped passively Q-switched, Nd:Cr:GSGG monoblock laser with a Cr +4 :YAG Qswitch are investigated as a function of cavity length. The measured temporal widths are linearly correlated with cavity length and the modulation depths of the temporal waveforms are periodic in nature with cavity length, peaking at integer multiples of c/2nL. Simulations support measured trends in the pulse widths and beat frequencies as a function of cavity length.4

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Mode Locking Behavior of Gas Lasers in Long Cavities

Cited by 32 publications

References 2 publications

The generation of ultrashort laser pulses

The generation of ultrashort laser pulses

Ultrafast Raman fiber laser: a review and prospect

Cavity length dependence of mode beating in passively Q-switched Nd-solid state lasers.

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