Beam quality of photonic-crystal fibers |
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| Authors: | Mafi A Moloney JV |
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| Affiliation: | Arizona Center for Math. Sci., Univ. of Arizona, Tucson, AZ, USA; |
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| Abstract: | In this paper, we investigate the beam quality of photonic-crystal fibers (PCFs) with one, three, and seven missing airholes. The beam quality factor M/sup 2/ of a PCF is generally larger than unity, even if it is single mode. The results are especially important for the design and measurements of single-mode PCF lasers. A comparison between an M/sup 2/ measurement of the laser beam and the reported numbers can establish whether a PCF laser is operating as single mode or is contaminated by higher order modes. |
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