Transmission Characteristics of Dielectric Tube Leaky Waveguide

Miyagi, Mitsunobu; Nishida, Shigeo

doi:10.1109/tmtt.1980.1130115

Cited by 31 publications

(14 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…It is possible to significantly reduce the optical losses of such a fiber by increasing the reflection coefficient from the core-cladding interface e.g., by reflection from two surfaces, using as a waveguide, a capillary with a thin glass wall (tube waveguide-TW) and constructive interference of radiation that is reflected from both surfaces of the capillary. Such a fiber was considered in [11], and it can be taken as a second approximation to RF (model TW). In this case, the capillary wall serves as a Fabry-Perot interferometer, the transmission spectrum of the optical fiber, respectively, acquires a band structure.…”

Section: Physical Demonstrative Approach To the Waveguiding Propertiementioning

confidence: 99%

“…(a) Cross-(1) and longitudinal (2) sections of the hollow waveguide [10]; (b) Cross-(1) and longitudinal (2) sections of the tube waveguide [11]; (c) Cross-section (1) of the RF [1], approximation of the part of the walls of the reflecting capillaries by the mirror sides of the angle α (2), a reflection scheme of a ray propagating along the RF, from a corner with mirror sides (a projection onto the cross section of the optical fiber) (3); and, (d) Calculated optical loss spectrum for silica fibers: hollow waveguide (HW), tube waveguide (TW) and RF. For all waveguides, the hollow core diameter is assumed to be 77 µm, and the thickness of the capillary wall (for TW and RF) is 1.15 µm.…”

Section: Physical Demonstrative Approach To the Waveguiding Propertiementioning

confidence: 99%

See 1 more Smart Citation

Revolver Hollow Core Optical Fibers

Bufetov

Косолапов

Pryamikov

et al. 2018

Fibers

View full text Add to dashboard Cite

Revolver optical fibers (RF) are special type of hollow-core optical fibers with negative curvature of the core-cladding boundary and with cladding that is formed by a one ring layer of capillaries. The physical mechanisms contributing to the waveguiding parameters of RFs are discussed. The optical properties and possible applications of RFs are reviewed. Special attention is paid to the mid-IR hydrogen Raman lasers that are based on RFs and generating in the wavelength region from 2.9 to 4.4 μm.

show abstract

Section: Physical Demonstrative Approach To the Waveguiding Propertiementioning

confidence: 99%

Section: Physical Demonstrative Approach To the Waveguiding Propertiementioning

confidence: 99%

Revolver Hollow Core Optical Fibers

Bufetov

Косолапов

Pryamikov

et al. 2018

Fibers

View full text Add to dashboard Cite

show abstract

“…Nevertheless, their proposed solid plastic waveguide was rectangular which was not intended for the single-mode operation and was limited in link-distance due to the high dielectric loss of polyethylene at mm-Wave frequencies. To alleviate such disadvantages, we propose to 1) replace the solid rectangular waveguide with a hollow plastic cable to transmit energy mostly within the air-core; 2) maintain mm-Wave signal through a cylindrical cable under a circular HE11 single-mode operation [9], [10]. The proposed data link via a hollow plastic cable is explained in Fig.…”

Section: Proposed System Architecturementioning

confidence: 99%

High-Speed mm-Wave Data-Link Based on Hollow Plastic Cable and CMOS Transceiver

Kim

Nan

Cong

et al. 2013

IEEE Microw. Wireless Compon. Lett.

View full text Add to dashboard Cite

A multi-Giga-bit/s (up to 6 Gbps) and energy-efficient ( 1 pJ/bit/m) data link is formed by using hollow plastic cable and CMOS transceivers for short distance ( 8 m) digital communications. The demonstrated link couples/de-couples 60 GHz carried digital signals with roughly 6 dB loss per coupling into/from a hollow plastic cable made of relatively low-loss ( 1.5 dB/m) Teflon, which is widely used for various home appliances. The CMOS transceivers are designed and implemented in 65 nm Foundry CMOS to support the intended 60 GHz operation with 28 mW power consumption under a 1 V supply.Index Terms-Amplitude shift keying (ASK) modulation, hollow plastic waveguide, millimeter wave integrated circuits, RF-interconnect.

show abstract

“…The innermost thin glass wall supported by a glass microstructure optically functions and confines the light in the core [7,8]. However, Miyagi and Nishida proposed this type of waveguide with a circular core as a tubeleaky waveguide in 1980 [9], before ARROW waveguides were proposed. In that paper, they analytically explained In this paper, we designed and fabricated large-core tube-leaky waveguides for Er:YAG lasers that are commonly used in medical laser applications such as tissue cutting and dental drilling utilizing the high absorption coefficient for water contained in skin and tissue [10].…”

Section: Introductionmentioning

confidence: 99%

Large-core tube-leaky waveguide for delivery of high-powered Er:YAG laser

2014

View full text Add to dashboard Cite

A tube-leaky fiber that consists of only dielectric thin-film tubing for delivery of Er:YAG laser light is presented. The tube-leaky fiber confines light in the airy core when the film thickness is properly chosen for target wavelength. Transmission properties of the fibers are derived by using a ray optic method and designed the optimum wall thickness for the Er:YAG laser wavelength of 2.94 micron. In fabrication of the tube leaky fiber, we use a microstructural tube made of glass to enhance mechanical strength. The central bore and surrounding glass thin layer that is held by the microstructure function as a tube-leaky fiber. We fabricate a large-core fiber for delivery of high-power medical lasers by stack-and-draw method and we use borosilicate-glass as a fiber material for low cost fabrication. Fabricated fibers have a diameter over 400 m and from the loss measurements for Er:YAG laser, and the fibers deliver laser light with a transmission loss of 0.85 dB/m that is comparable to 0.7 dB/m of conventional hollow-optical fibers. The fibers withstand transmission of laser pulses with energy higher than 120 mJ. We confirm that these energies are enough to ablate biological tissues in surgical operations.

show abstract

Transmission Characteristics of Dielectric Tube Leaky Waveguide

Cited by 31 publications

References 8 publications

Revolver Hollow Core Optical Fibers

Revolver Hollow Core Optical Fibers

High-Speed mm-Wave Data-Link Based on Hollow Plastic Cable and CMOS Transceiver

Large-core tube-leaky waveguide for delivery of high-powered Er:YAG laser

Contact Info

Product

Resources

About