A hitless reconfigurable add-drop multiplexer for WDM networks utilizing planar waveguides, thermo-optic switches and UV-induced gratings

Scotti, R.E.; Madsen, C.K.; Lenz, G.; Li, Y.P.; Presby, H.M.; White, Alice E.

doi:10.1109/ofc.1998.657279

Cited by 8 publications

(2 citation statements)

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“…One general approach to hitless switching is to provide a controllable bypass interferometer within which the filter is embedded [19,20]. Within this framework, one such implementation is shown in Fig.…”

Section: Hitless Switching and Tuning Of Microphotonic Filtersmentioning

confidence: 99%

“…Owing to symmetries in the design, the geometry in [20] permits simple actuation, attainable operating bandwidths of hundreds of nanometers, and low sensitivity to dimensional variations, losses and even asymmetries between the two switches [21]. MZ interferometer switches used in [19] enable thermo-optic actuation, but one may also employ microelectro-mechanical systems (MEMS)-based switches [20,22], which permit a small footprint in HIC and low steady-state power consumption.…”

Section: Hitless Switching and Tuning Of Microphotonic Filtersmentioning

confidence: 99%

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Silicon photonics for compact, energy-efficient interconnects [Invited]

et al. 2007

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͑Doc. ID 74779͒ The goal of the research program that we describe is to break the emerging performance wall in microprocessor development arising from limited bandwidth and density of on-chip interconnects and chip-to-chip (processor-tomemory) electrical interfaces. Complementary metal-oxide semiconductor compatible photonic devices provide an infrastructure for deployment of a range of integrated photonic networks, which will replace state-of-the-art electrical interconnects, providing significant gains at the system level. Scaling of wavelength-division-multiplexing (WDM) architectures using high-indexcontrast (HIC) waveguides offers one path to realizing the energy efficiency and density requirements of high data rate links. HIC microring-resonator filters are well suited to support add-drop nodes in dense WDM photonic networks with high aggregate data rates because they support high Q's and, due to their traveling-wave character, naturally support physically separated input and drop ports. A novel reconfigurable, "hitless" switch is presented that does not perturb the express channels either before, during, or after reconfiguration. In addition, multigigahertz operation of low-power, Mach-Zehnder silicon modulators as well as germanium-on-silicon photodiodes are presented.

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Section: Hitless Switching and Tuning Of Microphotonic Filtersmentioning

confidence: 99%

Section: Hitless Switching and Tuning Of Microphotonic Filtersmentioning

confidence: 99%

Silicon photonics for compact, energy-efficient interconnects [Invited]

et al. 2007

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MEMS technology in optical layer networks

Walker¹

2001 Proceedings. 51st Electronic Components and Technology Conference (Cat. No.01CH37220)

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The rate at which bandwidth demand in communications networks has grown has caused service providers to move rapidly to dense wavelength-division-multiplexed networks. This has in turn spawned a number of new application areas in which there is no clear technological winner, leaving room for new technologies such as MEMS to create inroads. In this paper, these applications are discussed and examples of several MEMS devices being developed for use in wavelength-division-multiplexed networks optical transport systems are presented.

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Nanomechanical Proximity Perturbation for Switching in Silicon-Based Directional Couplers for High-Density Photonic Integrated Circuits

Chatterjee

Wong

2010

J. Microelectromech. Syst.

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A hitless reconfigurable add-drop multiplexer for WDM networks utilizing planar waveguides, thermo-optic switches and UV-induced gratings

Cited by 8 publications

References 2 publications

Silicon photonics for compact, energy-efficient interconnects [Invited]

Silicon photonics for compact, energy-efficient interconnects [Invited]

MEMS technology in optical layer networks

Nanomechanical Proximity Perturbation for Switching in Silicon-Based Directional Couplers for High-Density Photonic Integrated Circuits

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