Three-dimensional diffraction calculations of laser resonator modes

Applied Optics
A N Chester

Abstract

The numerical technique of Fox and Li for computing laser resonator modes is applied to the case of three-dimensional laser resonators without circular or rectangular symmetries. The computation techniques are explained, and results are presented for several specific resonators, both stable and unstable. The effect of laser medium shock waves on the refractive index of the optical cavity is approximated by a thin sheet near one resonator mirror. The near-field burn pattern of the laser output beam exactly follows the phase pattern of the shock fronts, in good qualitative agreement with experimental results reported for gas dynamic lasers. The far-field output beam demonstrates pronounced astigmatism, being considerably broadened at right angles to the flow direction, and it suggests a breakup of the far-field pattern into several separate intensity spots. The optical phase of the resonator mode is quite smooth, even in the worst cases studied, suggesting the possibility of phase compensation by suitable optics.

References

Mar 1, 1966·Applied Optics·W K Kahn
Oct 1, 1966·Applied Optics·H Kogelnik, T Li
May 1, 1967·Applied Optics·S R Barone
Mar 1, 1968·Applied Optics·L Bergstein
Jan 1, 1969·Applied Optics·R L Sanderson, W Streifer
Oct 1, 1969·Applied Optics·R L Sanderson, W Streifer
Nov 1, 1969·Applied Optics·R L Sanderson, W Streifer
Dec 1, 1970·Applied Optics·A E Siegman, H Y Miller

❮ Previous
Next ❯

Citations

Apr 1, 1977·Applied Optics·C Santana, L B Felsen
Feb 1, 1974·Applied Optics·A E Siegman

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.