| 摘要 |
<p>The invention relates to an optical component comprising at least one input guide element (1-4), at least one output guide element (5) and a spectral separation element (7) which is disposed between the input guide element(s) (1-4) and the output guide element(s) (5). The inventive component is characterised in that at least one of the input or output guide elements (1-5) comprises a fibre (1-5) containing a portion (21-25) which is designed to increase the mode range of a beam that it guides. According to the invention, the portion which is designed to increase the beam mode range can comprise a portion with a graded index, a portion having a core or gain size which varies radially and/or longitudinally, or a portion having a core or gain index which varies transversely and/or longitudinally.</p> |
