Аннотация

We develop a comprehensive theory for describing the experimental beam profiles from multimode fiber Raman lasers. We take into account the presence of random linear mode coupling, Kerr beam self-cleaning and intra-cavity spatial filtering. All of these factors play a decisive role in shaping the Stokes beam, which has a predominant fundamental mode content. Although the highly multimode pump beam is strongly depleted, it remains almost insensitive to the different physical effects. As a result, the intensity of the output Stokes beam is an order of magnitude higher than the pump intensity at its maximum, in quantitative agreement with the experimental results and in contrast with the simplified balance model.

Язык оригиналаанглийский
Страницы (с-по)8212-8221
Число страниц10
ЖурналOptics Express
Том30
Номер выпуска5
DOI
СостояниеОпубликовано - 28 февр. 2022

Предметные области OECD FOS+WOS

  • 1.03 ФИЗИЧЕСКИЕ НАУКИ И АСТРОНОМИЯ
  • 1.03.SY ОПТИКА

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Подробные сведения о темах исследования «Mechanism of brightness enhancement in multimode LD-pumped graded-index fiber Raman lasers: numerical modeling». Вместе они формируют уникальный семантический отпечаток (fingerprint).

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