Abstract: Beam quality is a measure of how tightly a beam can be focused. The higher the beam quality, the smaller the spot size and the higher the laser intensity. According to the ISO-standard [] this property can be characterized by the beam-parameter product (Q or BPP), multiplying the waist radius (w 0) and the far-field divergence (θ 0) of the beam. In the best case, i.e., without any aberrations, this beam-parameter product remains constant, if the beam is transformed by passive optical components such as lenses or mirrors (Eq. 4.1).
Publication Year: 2007
Publication Date: 2007-01-01
Language: en
Type: book-chapter
Indexed In: ['crossref']
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Cited By Count: 7
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