{"title":"A New Approach Defining Angular DMD Using Near Field Aperturing","authors":"S. Al-Sowayan, K. L. Lear","volume":79,"journal":"International Journal of Electrical and Computer Engineering","pagesStart":925,"pagesEnd":928,"ISSN":"1307-6892","URL":"https:\/\/publications.waset.org\/pdf\/16477","abstract":"
A new technique to quantify the differential mode
\r\ndelay (DMD) in multimode fiber (MMF) is been presented. The
\r\ntechnique measures DMD based on angular launch and
\r\nmeasurements of the difference in modal delay using variable
\r\napertures at the fiber face. The result of the angular spatial filtering
\r\nrevealed less excitation of higher order modes when the laser beam is
\r\nfiltered at higher angles. This result would indicate that DMD
\r\nprofiles would experience a data pattern dependency.<\/p>\r\n","references":"
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