Hard polymer cladding fiber (HPCF) links for high-speed short reach 1/spl times/4 passive optical network (PON) based on all-HPCF compatible fused taper power splitter

Kim, D.U.; Bae, S.C.; Kim, J.; Kim, T.-Y.; Park, C.-S.; Oh, Kyunghwan

doi:10.1109/lpt.2005.857598

Cited by 12 publications

(8 citation statements)

References 11 publications

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“…4 that with the growth of the input power, the distribution ratio among the four output ports fluctuates within a narrow range with a maximum distribution ratio of 0.3 dB at lower power operation and a minimum distribution ratio of 0.2 dB at higher power operation. In comparison, the splitter reported in [9] show excellent uniform output power splitting of less than 0.1 dB, yet it suffered from a much higher insertion loss of 10.5 dB and excess loss of 4.5 dB.…”

Section: Measurement and Discussionmentioning

confidence: 95%

“…But the device needs to be improved since the transmission efficiency is only 15% and it presents a dominant output port along with 3 weakly coupled output ports. A 1 × 4 power splitter made of hard polymer clad fibers (200/230, NA core = 0.38) showed a transmission efficiency of 35% and a low deviation (less than 0.1 dB) in power splitting at the optimal taper length which is tested by a laser diode power of −14.65 dBm [9]. Kim et al [10] reported a 1 × 4 power splitter made of multimode air-clad holy fiber with a core diameter of 70 µm and a numerical aperture of 0.5.…”

Section: Introductionmentioning

confidence: 99%

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Taper Fused Fiber Bundle <inline-formula> <tex-math notation="LaTeX">$1\times 4$ </tex-math></inline-formula> Coupler for High Power Splitting

Han

Zou

et al. 2015

IEEE Photon. Technol. Lett.

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The first experimental demonstration of a 1 × 4 all-fiber power splitter capable of high-power operation is presented. The splitter, prepared by fused taper technique and fusion splicing technique, consists of one input fiber with a core diameter of 400 µm (NA CORE = 0.22) and four output fibers with a core diameter of 200 µm (NA CORE = 0.22). The device was tested at a laser power up to 166 W and it achieves a low excess loss of 0.56 dB and an excellent uniformity of less than 0.3 dB in port-to-port power splitting ratio. The results of theoretical simulation by the 3-D beam propagation method show that the performance of this splitter could be optimized further through modifying structure parameters. Index Terms-High power, taper fused bundle, all-fiber, power splitter.

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Section: Measurement and Discussionmentioning

confidence: 95%

Section: Introductionmentioning

confidence: 99%

Taper Fused Fiber Bundle <inline-formula> <tex-math notation="LaTeX">$1\times 4$ </tex-math></inline-formula> Coupler for High Power Splitting

Han

Zou

et al. 2015

IEEE Photon. Technol. Lett.

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“…7. The splitter was made by conventional fused tapering technique based on the micro-flame brushing technique [14]. The light source through the PZT-HPCF assembly was again focused into the input port of the splitter using a × 20 objective (NA 0.40).…”

Section: Resultsmentioning

confidence: 99%

Acousto-optic control of speckle contrast in multimode fibers with a cylindrical piezoelectric transducer oscillating in the radial direction

Ha¹,

Lee²,

Jung³

et al. 2009

Opt. Express

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Abstract:We report efficient acousto-optic control of speckle contrast at the output of multimode fibers (MMFs) using a cylindrical piezoelectric transducer (PZT) vibrating in the radial direction. With appropriate packaging of an MMF around the PZT, periodic stretching and subsequent intensity modulation were achieved over the wound fiber to result in timeaveraged smoothing of the output within a short time. It was experimentally confirmed that light passed through the vibrating PZT-fiber assembly maintains the virtually partial coherence irrespective of the guide length and power splitting. Real-time vibration-off/on movies were presented, and their single-frame excerpts were analyzed. Electron. Lett. 15(23), 755-756 (1979). 13. E. G. Rawson, J. W. Goodman, and R. E. Norton, "Analysis and measurement of the modal-noise probability distribution for a step-index optical fiber," Opt. Lett. 5(8), 357-358 (1980). 14. D. U. Kim, S. C. Bae, J. Kim, T.-Y. Kim, C.-S. Park, and K. Oh, "Hard polymer cladding fiber (HPCF) links for high-speed short reach 1×4 passive optical network (PON) based on all-HPCF compatible fused taper power splitter," IEEE Photon. ©2009 Optical Society of America

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“…HPCF is less expensive than all-silica fiber constructions, and offers benefits of high strength, lower static fatigue, less strain at the core-clad interface, high core-to-clad ratios, and lighter weights [17]. HPCF also has merits over plastic optical fiber (POF) in terms of long-distance communication and thermal and mechanical robustness [18].…”

Section: Optical Time Domain Reflectometermentioning

confidence: 99%

Multiplexed Hard-Polymer-Clad Fiber Temperature Sensor Using An Optical Time-Domain Reflectometer

Lee¹,

Kim²

2016

International Journal of Aeronautical and Space Sciences

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Optical fiber temperature sensing systems have incomparable advantages over traditional electrical-cable-based monitoring systems. However, the fiber optic interrogators and sensors have often been rejected as a temperature monitoring technology in real-world industrial applications because of high cost and over-specification. This study proposes a multiplexed fiber optic temperature monitoring sensor system using an economical Optical Time-Domain Reflectometer (OTDR) and Hard-PolymerClad Fiber (HPCF). HPCF is a special optical fiber in which a hard polymer cladding made of fluoroacrylate acts as a protective coating for an inner silica core. An OTDR is an optical loss measurement system that provides optical loss and event distance measurement in real time. A temperature sensor array with the five sensor nodes at 10-m interval was economically and quickly made by locally stripping HPCF clad through photo-thermal and photo-chemical processes using a continuous/pulse hybrid-mode laser. The exposed cores created backscattering signals in the OTDR attenuation trace. It was demonstrated that the backscattering peaks were independently sensitive to temperature variation. Since the 1.5-mm-long exposed core showed a 5-m-wide backscattering peak, the OTDR with a spatial resolution of 40 mm allows for making a sensor node at every 5 m for independent multiplexing. The performance of the sensor node included an operating range of up to 120 C under the temperature variation of the unstrapped fiber region and the vibration of the sensor node. The small sensitivities to the environment and the economic feasibility of the highly multiplexed HPCF temperature monitoring sensor system will be important advantages for use as system-integrated temperature sensors.

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Hard polymer cladding fiber (HPCF) links for high-speed short reach 1/spl times/4 passive optical network (PON) based on all-HPCF compatible fused taper power splitter

Cited by 12 publications

References 11 publications

Taper Fused Fiber Bundle <inline-formula> <tex-math notation="LaTeX">$1\times 4$ </tex-math></inline-formula> Coupler for High Power Splitting

Taper Fused Fiber Bundle <inline-formula> <tex-math notation="LaTeX">$1\times 4$ </tex-math></inline-formula> Coupler for High Power Splitting

Acousto-optic control of speckle contrast in multimode fibers with a cylindrical piezoelectric transducer oscillating in the radial direction

Multiplexed Hard-Polymer-Clad Fiber Temperature Sensor Using An Optical Time-Domain Reflectometer

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