1 November 2017 Fused-fiber-based 3-dB mode insensitive power splitters for few-mode optical fiber networks
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Abstract
We propose a 3-dB mode insensitive power splitter (MIPS) capable of broadcasting and combining optical signals. It is fabricated with two identical few-mode fibers (FMFs) by a heating and pulling technique. The mode-dependent power transfer characteristic as a function of pulling length is investigated. For exploiting its application, we experimentally demonstrate both FMF-based transmissive and reflective star couplers consisting of multiple 3-dB mode insensitive power splitters, which perform broadcasting and routing signals in few-mode optical fiber networks such as mode-division multiplexing (MDM) local area networks using star topology. For experimental demonstration, optical on-off keying signals at 10    Gb / s carried on three spatial modes are successfully processed with open and clear eye diagrams. Measured bit error ratio results show reasonable power penalties. It is found that a reflective star coupler in MDM networks can reduce half of the total amount of required fibers comparing to that of a transmissive star coupler. This MIPS is more efficient, more reliable, more flexible, and more cost-effective for future expansion and application in few-mode optical fiber networks.
© 2017 Society of Photo-Optical Instrumentation Engineers (SPIE)
Fang Ren, Xiaoshan Huang, Jianping Wang, "Fused-fiber-based 3-dB mode insensitive power splitters for few-mode optical fiber networks," Optical Engineering 56(11), 116101 (1 November 2017). https://doi.org/10.1117/1.OE.56.11.116101 . Submission: Received: 17 May 2017; Accepted: 17 October 2017
Received: 17 May 2017; Accepted: 17 October 2017; Published: 1 November 2017
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