Hole-assisted fiber design for small bending and splice losses

Nakajima, Kazuhide; Hogari, K.; Zhou, Jian; Tajima, Kazuo; Sankawa, L.

doi:10.1109/lpt.2003.819723

Cited by 78 publications

(29 citation statements)

References 6 publications

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“…The above experimental results show that the fuse propagation threshold in HAF can be much higher than that in conventional SMF with the same MFD. This indicates that HAF is attractive not only as a bending-loss insensitive fiber [23], [24] but also as a fiber for suppressing fiber fuse propagation or for use as a fiber fuse terminator. Figure 5 consists of six successive images taken at intervals of 50 µs that show the dynamics of fiber fuse termination at a splice point between SMF and HAF-B.…”

Section: Propagation Characteristics Of Fiber Fuse In Test Fibersmentioning

confidence: 99%

Fiber Fuse Propagation and Its Suppression in Hole-Assisted Fibers

Kurokawa

Hanzawa

2011

IEICE Trans. Commun.

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SUMMARYWe examined the characteristics of fiber fuse propagation in hole-assisted fibers (HAF). The fiber fuse propagated in the same way as in conventional single-mode fiber (SMF) when the diameter of an inscribed circle linking the air holes (c) was much larger than the diameter of the melted area (D melted ). The melted area is caused by fiber fuse propagation and D melted is assumed to be almost the same size as the plasma. However, when c was much smaller than D melted , the fiber fuse did not propagate in HAF with input powers above 15 W at 1480 and 1550 nm. This result indicates that the threshold power of fiber fuse propagation in HAF can be at least 10 times larger than that in conventional SMF in the optical communication band. We also observed the dynamics of fiber fuse termination at a splice point between HAF and a conventional fiber by using a high-speed camera, when c was much smaller than D melted . We consider that the reduction in gas density caused by the air holes results in fiber fuse termination. When c was almost the same as D melted , we observed a new propagation mode and its dynamics for a fiber fuse with a damage track whose period was approximately 30 times longer than that in conventional SMF. We also made the first observation of a new threshold power (upper threshold) for a fiber fuse. key words: hole-assisted fiber (HAF), fiber fuse, high power

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Section: Propagation Characteristics Of Fiber Fuse In Test Fibersmentioning

confidence: 99%

Fiber Fuse Propagation and Its Suppression in Hole-Assisted Fibers

Kurokawa

Hanzawa

2011

IEICE Trans. Commun.

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“…The bending loss of this fiber is < 0.01 dB/turn at 5 mm bend radius and < 0.001 dB/turn at 10 mm bend radius, which are similar to the bend losses of the hole-assisted bend resistant fibers reported in Refs. [16] and [17]. However, the manufacturing process for making quasi single-mode fibers using nano-engineered voids is much simpler compared to processes used for making hole-assisted fibers.…”

Section: Ultra-low Bending Loss Single Mode Fibermentioning

confidence: 99%

Nano-engineered optical fibers and applications

Tandon

Bookbinder

et al. 2013

Nanophotonics

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Abstract:The paper reviews optical fibers with nanoengineered features and methods to fabricate them. These optical fibers have nano-engineered regions comprising of randomly distributed voids which provide unique properties for designing next generation of fibers. Discussion of impact of void morphology on fiber optical properties is presented, along with the methods to control the void characteristics. Use of nano-engineered fibers for different applications (ultra-low bend loss single mode fiber, quasi-single mode bend loss fiber, endless single-mode fiber, light diffusing fibers) is discussed and the unique optical attributes of the fibers in these applications is highlighted.

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“…We have reported many applications of low loss PCF as a transmission medium [26]. HAFs are attractive as a bend-insensitive fiber [27] and are used in indoor optical cable.…”

Section: Open Accessmentioning

confidence: 99%

“…Several kinds of optical fibers with low bending losses have already been developed, namely, PCFs [25,40], HAFs [27], trench-index-profile fibers [41], and nano-engineered fibers [42]. Recent progress on fiber to the home (FTTH) has accelerated the development and standardization of bend-insensitive fibers.…”

Section: Color Change By Oxidization Lightmentioning

confidence: 99%

Optical Fiber for High-Power Optical Communication

Kurokawa

2012

Crystals

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Abstract:We examined optical fibers suitable for avoiding such problems as the fiber fuse phenomenon and failures at bends with a high power input. We found that the threshold power for fiber fuse propagation in photonic crystal fiber (PCF) and hole-assisted fiber (HAF) can exceed 18 W, which is more than 10 times that in conventional single-mode fiber (SMF). We considered this high threshold power in PCF and HAF to be caused by a jet of high temperature fluid penetrating the air holes. We showed examples of two kinds of failures at bends in conventional SMF when the input power was 9 W. We also observed the generation of a fiber fuse under a condition that caused a bend-loss induced failure. We showed that one solution for the failures at bends is to use optical fibers with a low bending loss such as PCF and HAF. Therefore, we consider PCF and HAF to be attractive solutions to the problems of the fiber fuse phenomenon and failures at bends with a high power input.

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Hole-assisted fiber design for small bending and splice losses

Cited by 78 publications

References 6 publications

Fiber Fuse Propagation and Its Suppression in Hole-Assisted Fibers

Fiber Fuse Propagation and Its Suppression in Hole-Assisted Fibers

Nano-engineered optical fibers and applications

Optical Fiber for High-Power Optical Communication

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