Ultra low loss (0.151 dB/km) fiber and its impact on submarine transmission systems

Nagayama, Katsuya; Saitoh, Tetsuya; Kakui, Motoki; Kawasaki, Kohei; Matsui, Masanao; Takamizawa, H.; Miyaki, H.; Ooga, Y.; Tsuchiya, O.; Chigusa, Yoshiki

doi:10.1109/ofc.2002.1036759

Cited by 17 publications

(13 citation statements)

References 2 publications

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“…The minimum propagation loss in conventional pure-silica core fibers is ~ 0.15 dB/km 23 and is close to the theoretical minimum loss for solid silica (~ 0.14 dB/km), which is limited by fundamental scattering and absorption processes 24 . This value also represents the minimum losses possible in index-guiding pure-silica HFs, assuming contributions from other sources loss, such as confinement loss and waveguide nonuniformity are negligible.…”

Section: Transmission Losses In Mfssupporting

confidence: 74%

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Microstructured fibers for high power applications

Baggett

Petrovich

Hayes

et al. 2005

Nanophotonics for Communication: Materials and Devices II

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Fiber delivery of intense laser radiation is important for a broad range of application sectors, from medicine through to industrial laser processing of materials, and offers many practical system design and usage benefits relative to free space solutions. Optical fibers for high power transmission applications need to offer low optical nonlinearity and high damage thresholds. Single-mode guidance is also often a fundamental requirement for the many applications in which good beam quality is critical. In recent years, microstructured fiber technology has revolutionized the dynamic field of optical fibers, bringing with them a wide range of novel optical properties. These fibers, in which the cladding region is peppered with many small air holes, are separated into two distinct categories, defined by the way in which they guide light: (1) index-guiding holey fibers (HFs), in which the core is solid and light is guided by a modified form of total internal reflection, and (2) photonic band-gap fibers (PBGFs) in which guidance in a hollow core can be achieved via photonic band-gap effects. Both of these microstructured fiber types offer attractive qualities for beam delivery applications. For example, using HF technology, large-mode-area, pure silica fibers with robust single-mode guidance over broad wavelength ranges can be routinely fabricated. In addition, the ability to guide light in an air-core within PBGFs presents obvious power handling advantages. In this paper we review the fundamentals and current status of high power, high brightness, beam delivery in HFs and PBGFs, and speculate as to future prospects.

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Section: Transmission Losses In Mfssupporting

confidence: 74%

“…Note that whilst the longest lengths of HF fabricated to date is 100 km, (with losses of 0.55 dB/km at 1550 nm) 23 , the fabrication of PBGF is typically more challenging than HF and the longest length of PBGF through which light has been transmitted is currently 345 m 27 . …”

Section: Transmission Losses In Mfsmentioning

confidence: 99%

Microstructured fibers for high power applications

Baggett

Petrovich

Hayes

et al. 2005

Nanophotonics for Communication: Materials and Devices II

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“…We first choose χ/γ = 0.0125 that the amplitude will reduce as A ≈ 0.533 for 15km while θ = π is obtained for 3, 000km. This corresponds 0.364dB/km of signal loss, which is a typical value for commercial fibers used for telecommunication and easily achieved using current technology [24,25]. Note that signal losses in some pure silica core fibers are even less than 0.15dB/km [25].…”

Section: Decoherence In the Weak-nonlinearity-based Parity Gatementioning

confidence: 80%

Quantum computation using weak nonlinearities: Robustness against decoherence

Jeong

2006

Phys. Rev. A

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We investigate decoherence effects in the recently suggested quantum computation scheme using weak nonlinearities, strong probe coherent fields, detection and feedforward methods. It is shown that in the weak-nonlinearity-based quantum gates, decoherence in nonlinear media can be made arbitrarily small simply by using arbitrarily strong probe fields, if photon number resolving detection is used. On the contrary, we find that homodyne detection with feedforward is not appropriate for this scheme because in this case decoherence rapidly increases as the probe field gets larger.

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“…12d). It is a large improvement in respect to the PCF reported previously where attenuation was equal to 13 dB/km [31], however still one order of magnitude more than conventional state-of-the-art silica fibers with attenuation of 0.15 dB/km [32].…”

Section: Hollow Core Fibersmentioning

confidence: 84%

Photonic Crystal Fibers

Buczyński

2004

Acta Phys. Pol. A

143

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Photonic crystal fibers are a new class of optical fibers. Their artificial crystal-like microstructure results in a number of unusual properties. They can guide light not only through a well-known total internal reflection mechanism but using also photonic bandgap effect. In this paper different properties possible to obtain in photonic crystal fibers are reviewed. Fabrication and modeling methods are also discussed.

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Ultra low loss (0.151 dB/km) fiber and its impact on submarine transmission systems

Abstract: Ultra low loss of 0.15ldBkm, which is the lowest attenuation ever reported, has been achieved. Its impact on transmission systems with amplifiers such as EDFA and Raman is also examined. 02002 Optical Society of America OCIS codes: (060.2280) Fiber design and fabrication

Cited by 17 publications

References 2 publications

Microstructured fibers for high power applications

Microstructured fibers for high power applications

Quantum computation using weak nonlinearities: Robustness against decoherence

Photonic Crystal Fibers

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