Statistical Analysis on Connection Characteristics of Optical Fiber Connectors

Yasuhiro ANDO  Shin'ichi IWANO  Kazunori KANAYAMA  Ryo NAGASE  

IEICE TRANSACTIONS on Electronics   Vol.E77-C   No.12   pp.1970-1982
Publication Date: 1994/12/25
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: PAPER
Category: Opto-Electronics
probability theory,  statistics,  optical,  connector,  insertion loss,  return loss,  simulation,  

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The statistical properties of insertion losses and return losses for optical connectors are investigated theoretically using the probability theory and the Monte Carlo simulation. Our investigation is focused on an orientation method for reducing insertion loss by which a fiber-core center is adjusted in a region of within a certain angle to the positioning key direction. It is demonstrated that the method can significantly improve insertion losses, and that an adjusting operation angle of 90 degrees is sufficient to realize an insertion loss of less than 0.5 dB with 99% cumulative probability. Good agreement was obtained between the theoretical distribution and the experimental results for single-mode fiber connection. Consequently, it is indicated that the statistical distributions of insertion losses and return losses of optical connectors in the field can be predicted theoretically from the values measured in the factory by connection to a master connector.