Low-loss single-mode wavelength-division multiplexing with etched fibre arrays

Hegarty, J.; Poulsen, S. D.; Jackson, K. A.; Kaminow, I. P.

doi:10.1049/el:19840470

Cited by 24 publications

(3 citation statements)

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“…This focus was due to the fact that microoptics is the natural solution for multimode fiberbased systems, which were dominant in the early eighties as explained in the introduction. Although some demultiplexer designs employ dichroic or interference filters, such as those made by NTT [88] and OCA, most microoptical WDM designs use collimating optics and a reflecting grating, such as those made by Jobin-Yvon [89], STC [94], NEC [84], AT&T [86], [93], BTRL [85], and Physical Optics Corporation [87]. The designs of OCA and Jobin-Yvon are illustrated in Fig.…”

Section: Microopticsmentioning

confidence: 99%

Integrated-optic versus microoptic devices for fiber-optic telecommunication systems: a comparison

Pennings

Khoe

Smit

et al. 1996

IEEE J. Select. Topics Quantum Electron.

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Section: Microopticsmentioning

confidence: 99%

Integrated-optic versus microoptic devices for fiber-optic telecommunication systems: a comparison

Pennings

Khoe

Smit

et al. 1996

IEEE J. Select. Topics Quantum Electron.

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“…Such devices are now available as commercial items. The major problem for this design as a single-mode 8-2 multiplexer is the relatively poor channel bandwidth to channel spacing ratio that is determined by the single-mode spot diameter and the array fibre spacing, with etched fibre arrays (Hegarty et al 1984) this is usually limited to 5 or more typically |. One m improving the channel bandwidth to spacing ratio is to use multilens designs (Chamberlain & Hill 1987); one possible configuration of such a multiplexer is shown in figure 9.…”

Section: Wavelength Multiplexing Devicesmentioning

confidence: 99%

WDM techniques in broadband optical networks

Payne

1989

Phil. Trans. R. Soc. Lond. A

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The penetration of optical-fibre technology into the local-access network may well occur by the economic provision of well-established services, such as basic telephony, over a shared-access optical architecture. The provision of new broadband services needs to be done without disruption to these basic (telephony) services. Wavelength-division multiplexing techniques allow the possibility of broadband upgrade on a shared-access network architecture without disturbing existing services. The nature of shared-access structures, although providing opportunities for the early economic provision of basic low-bit-rate services, gives rise to major implications for the requirements of the WDM technology used for upgrading to broadband operation. In this paper example network structures are examined in terms of possible upgrade strategies and the associated technological implications.

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“…The upstream channels lie between 1523 and 1541 nm 4. shows the spectrum of the ten downstream DFB signals just before entering the demultiplexer at the RT.…”

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confidence: 99%

A passive photonic loop architecture employing wavelength-division multiplexing

Wagner¹,

Lemberg²,

Kobrinski³

et al.

IEEE Global Telecommunications Conference and Exhibition. Communications for the Information Age

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We present a new fiber subscriber-loop architecture that employs multichannel wavelengthdivision multiplexing (WDM) techniques to eliminate outside-plant electronics while providing each subscriber with dedicated channels to and from the central office (CO). This network approach has a number of attractive features, such as reduced maintenance requirements at remote sites in the loop plant and enhanced flexibility in the provisioning of services. We report an experimental demonstration of the architecture utilizing LEDs and low-cost receivers for narrowband (ISDN) transmission and DFB lasers for broadband t r a n s d o n (up to 1.2 Gbit/s).

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Low-loss single-mode wavelength-division multiplexing with etched fibre arrays

Cited by 24 publications

References 0 publications

Integrated-optic versus microoptic devices for fiber-optic telecommunication systems: a comparison

Integrated-optic versus microoptic devices for fiber-optic telecommunication systems: a comparison

WDM techniques in broadband optical networks

A passive photonic loop architecture employing wavelength-division multiplexing

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