Super-Gaussian output from a CO_2 laser by using a graded-phase mirror resonator

Bélanger, Pierre-André; Lachance, Richard L.; Paré, Claude

doi:10.1364/ol.17.000739

Cited by 104 publications

(34 citation statements)

References 2 publications

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“…They are also able to compensate directly for shaping-induced losses, vital in applications where photons are precious (e.g., remote laser operation). Many decades ago amplitude masking was used to produce Laguerre-Gaussian and Hermite-Gaussian modes from gas and solid state lasers; later phase-only elements were used to create arbitrary beam profiles from such lasers [234], while more modern approaches combine these tools in the form of intra-cavity SLMs [235] for on-demand mode control. Many exciting advances have been made, notably the controlled generation of OAM modes and vector vortex beams directly from solid state laser cavities [236].…”

Section: University Of the Witwatersrandmentioning

confidence: 99%

Roadmap on structured light

Rubinsztein‐Dunlop

Forbes

Berry

et al. 2016

J. Opt.

1,131

630

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Structured light refers to the generation and application of custom light fields. As the tools and technology to create and detect structured light have evolved, steadily the applications have begun to emerge. This roadmap touches on the key fields within structured light from the perspective of experts in those areas, providing insight into the current state and the challenges their respective fields face. Collectively the roadmap outlines the venerable nature of structured light research and the exciting prospects for the future that are yet to be realized.

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Section: University Of the Witwatersrandmentioning

confidence: 99%

Roadmap on structured light

Rubinsztein‐Dunlop

Forbes

Berry

et al. 2016

J. Opt.

1,131

630

View full text Add to dashboard Cite

show abstract

“…1), which could be realized with a super-Gaussian laser field with a high order [30][31][32]. The Λ-type three-level scheme can be realized, for example, by two 6S 1/2 hyperfine ground states F = 3 and F = 4 (hypefine splitting = 9.19 GHz) of 133 …”

Section: Modelmentioning

confidence: 99%

“…When we project the coupled equation (8) (31) where p ±,0 = 2mV ±,0 /h 2 − k 2 0 . With the continuation condition of wave function ψ and its derivative at the boundary of the potential, we obtain following equations …”

Section: Appendixmentioning

confidence: 99%

Goos-Hänchen-like shift of three-level matter wave incident on Raman beams

Duan¹,

Hu²,

Xu³

et al. 2014

Opt. Express

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When a three-level atomic wavepacket is obliquely incident on a "medium slab" consisting of two far-detuned laser beams, there exists lateral shift between reflection and incident points at the surface of a "medium slab", analogous to optical Goos-Hänchen effect. We evaluate lateral shifts for reflected and transmitted waves via expansion of reflection and transmission coefficients, in contrast to the stationary phase method. Results show that lateral shifts can be either positive or negative dependent on the incident angle and the atomic internal state. Interestingly, a giant lateral shift of transmitted wave with high transmission probability is observed, which is helpful to observe such lateral shifts experimentally. Different from the two-level atomic wave case, we find that quantum interference between different atomic states plays crucial role on the transmission intensity and corresponding lateral shifts.

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“…Optical pumping leads to a radial temperature gradient in the laser rod. As a result, in cw and high average power systems, the rod is acting like a positive thick lens of an effective focal length f, which is inversely proportional to the pump power [10].…”

Section: Active Resonatormentioning

confidence: 99%

Study of Various Designs of Solid State Laser Oscillator

Semwal¹

2013

IOSRJEN

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-This study concerns with the laser oscillator, threshold conditions, circulating power, and the Gaussian beam profile. Laser oscillator is a crucial device, which provides the feedback necessary to make a laser work. The regenerative laser oscillator is essentially a combination of two basic components: an optical amplifier, and an optical resonator, which serves to provide highly selective feedback. The optical resonator, comprised of two opposing plane-parallel or curved mirrors at right angles to the axis of active material, performs function of the feedback element, by coupling back in phase a portion of the signal emerging from the amplifing medium. The photons are reflected back and forth for many passes through the rod (amplifying medium), stimulating more and more emission on each pass. The mirrors can be gently curved so they tend to keep the light concentration inside the rod. One of the mirrors is 100 % reflective, but the other mirror transmits part of the light hitting it. This transmitted light is the output beam from the laser

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Super-Gaussian output from a CO_2 laser by using a graded-phase mirror resonator

Cited by 104 publications

References 2 publications

Roadmap on structured light

Roadmap on structured light

Goos-Hänchen-like shift of three-level matter wave incident on Raman beams

Study of Various Designs of Solid State Laser Oscillator

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