Bidirectional fiber amplifiers

Barnard, C.; Chrostowski, J.; Kavehrad, M.

doi:10.1109/68.149906

Cited by 22 publications

(3 citation statements)

References 9 publications

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“…5 shows the effectiveness of the bandpass filters in reducing the effects of RIN. This is mainly because the signals propagating in unwanted directions within the BADA modules were suppressed effectively by the extinction ratio of these bandpass filters [9]. Without using these filters, the SHR network can not accommodate more than three nodes even when the node spacing is as short as 40 km.…”

Section: Network Demonstrationmentioning

confidence: 99%

Bidirectional WDM self-healing ring network based on simple bidirectional add/drop amplifier modules

Kim

Lee

Chung

1998

IEEE Photon. Technol. Lett.

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Abstract-We demonstrate a cost-effective bidirectional wavelength-division-multiplexed (WDM) self-healing ring network using a novel bidirectional add/drop amplifier module. The maximum power penalty incurred in this network for bidirectional transmission and add/drop multiplexing of WDM signals was measured to be less than 0.5 dB at an error rate of 10 0 0 09 . The restoration time was less than 2 ms. The resultsshow that this network could accommodate at least ten nodes when the node spacing is 80 km.Index Terms-Add/drop multiplexer, bidirectional transmission, optical fiber amplifier, self-healing ring network, wavelength-division multiplexing.

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Section: Network Demonstrationmentioning

confidence: 99%

Bidirectional WDM self-healing ring network based on simple bidirectional add/drop amplifier modules

Kim

Lee

Chung

1998

IEEE Photon. Technol. Lett.

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“…Circulators are necessary components in the construction of foundational network modules such as add-drop multiplexers, 1 dispersion compensation, 2 optical amplifiers, 3 and time-domain reflectometry. 4 As the design of optical communication system becomes increasingly complex, a bidirectional transmission device 5 is highly desirable because of its obvious advantages over unidirectional transmission.…”

Section: Introductionmentioning

confidence: 99%

Multiport polarization-independent wavelength-interleaving bidirectional quasicirculator

Hsieh

2008

Opt. Eng

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An alternative type of multiport polarization-independent wavelength-interleaving bidirectional quasicirculator is proposed. It contains holographic spatial and polarization modules ͑HMs͒, a Lyot-Ohman filter ͑LOF͒, a quarterwave plate, and a mirror. Each HM contains a holographic spatial walk-off polarizer, a half-wave plate, and a glass plate. The LOF consists of three half-wave plates and three identical pairs of crystals. The functions of the HM and the LOF are described. Then, the operating principle and the performance of this quasicirculator are described and discussed. In this circulator, the signals in the even and odd channels can circulate with opposite handedness regardless of signal polarizations. It offers a high isolation level, polarization independence, low polarization-mode dispersion, parallel input/output ports and ease of increasing the number of ports.

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“…tional erbium-doped fiber amplifier B-EDFA . The simplest and least expensive w x design is a B-EDFA without optical isolators 7,8 . Such a design also has the additional advantage of enabling the use of optical time-domain reflectometry Ž .…”

Section: Introductionmentioning

confidence: 99%

Repeated Bidirectional Transmission Using Two 4-Port Optical Circulators and a Bidirectional EDFA without Isolators

Liaw

Chi

1999

Optical Fiber Technology

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Bidirectional fiber amplifiers

Cited by 22 publications

References 9 publications

Bidirectional WDM self-healing ring network based on simple bidirectional add/drop amplifier modules

Bidirectional WDM self-healing ring network based on simple bidirectional add/drop amplifier modules

Multiport polarization-independent wavelength-interleaving bidirectional quasicirculator

Repeated Bidirectional Transmission Using Two 4-Port Optical Circulators and a Bidirectional EDFA without Isolators

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