Low-loss fiber optic rotary joint using C-lens collimators

A low-loss fiber optic rotary joint (FORJ) has been designed by using two kinds of C-lens collimators. Its insertion loss and insertion loss variation due to rotation with single-mode fiber collimator is less than 1.76 dB and 0.43 dB respectively. The maximum insertion loss and coupling variation du...

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Bibliographic Details
Published in:Optoelectronics letters 2005-11, Vol.1 (3), p.221-223
Main Authors: Jia, Da-gong, Jing, Wen-cai, Zhang, Yi-mo, Zhou, Ge, Zhang, Jin, Tang, Feng
Format: Article
Language:English
Subjects:
Collimators
Coupling
Fiber optics
Insertion loss
Lenses
Rotation
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Summary:A low-loss fiber optic rotary joint (FORJ) has been designed by using two kinds of C-lens collimators. Its insertion loss and insertion loss variation due to rotation with single-mode fiber collimator is less than 1.76 dB and 0.43 dB respectively. The maximum insertion loss and coupling variation due to rotation with multi-mode fiber collimator is 1.71 dB and 0.29 dB, respectively. This kind of FORJ features low insertion loss, small coupling variation due to rotation and low cost.
ISSN:1673-1905
1993-5013
DOI:10.1007/BF03033848