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Titolo: Semiclassical approach in the analysis of ring laser: II. Mode coupling due to backscattering and interference
Autore: Shimosako, Y; Numai, T;
 Indirizzi:
 Canon Res Ctr, Atsugi, Kanagawa 2430193, Japan Canon Res Ctr Atsugi Kanagawa Japan 2430193 sugi, Kanagawa 2430193, Japan
 Titolo Testata:
 JAPANESE JOURNAL OF APPLIED PHYSICS PART 1REGULAR PAPERS SHORT NOTES & REVIEW PAPERS
fascicolo: 7A,
volume: 39,
anno: 2000,
pagine: 3991  3996
 SICI:
 00214922(200007)39:7A<3991:SAITAO>2.0.ZU;2U
 Fonte:
 ISI
 Lingua:
 ENG
 Soggetto:
 GYRO;
 Keywords:
 rate equation; ring laser; semiclassical theory; backscattering; Doppler effect; linear mode pulling; interference; coupling constant;
 Tipo documento:
 Article
 Natura:
 Periodico
 Settore Disciplinare:
 Physical, Chemical & Earth Sciences
 discip_EC
 Citazioni:
 9
 Recensione:
 Indirizzi per estratti:
 Indirizzo: Shimosako, Y Canon Res Ctr, 51 Morinosato Wakamiya, Atsugi, Kanagawa 2430193, Japan Canon Res Ctr 51 Morinosato Wakamiya Atsugi Kanagawa Japan 2430193



 Citazione:
 Y. Shimosako e T. Numai, "Semiclassical approach in the analysis of ring laser: II. Mode coupling due to backscattering and interference", JPN J A P 1, 39(7A), 2000, pp. 39913996
Abstract
In the research on ring lasers, the relationship between the lockin phenomenon and backscattering was usually analyzed by treating the backscatteredwaves as phenomenological coupling terms. However, with these approaches, it is difficult to quantitatively estimate the relationship between lockinphenomena and reflection due to backscattering. Also, the dependence of the coupling constant for a twomode operation on backscattering reflection has nut been described. To overcome these problems, rate equations, in whichspatial distributions of the fields are expressed as superpositions of traveling wave and its backscattered wave, have been derived in our previous paper [Jpn. J. Appl. Phys. 39 (2000) 3983]. Based on these newly derived rate equations, this paper introduces a modified coupling constant, which includes backscattering reflectivity, the Doppler effect, linear mode pulling, and the interference between two modes. As a result, it is found that the Doppler effect plays an important role in the modified coupling constant which is related to lockin phenomena. It is also shown that a weak coupling for all relative phase angles which leads to stable twomode operations can be observed when the Doppler effect is significant. Moreover, an upper limit of reflectivity of backscattered waves to achieve stable twomode operations is revealed quantitatively.
ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 28/09/20 alle ore 17:47:47