High-dynamic range channelized MEMS equalizing filter

Neilson, David T.; Greywall, Dennis S.; Chandrasekhar, S.; Buhl, L.L.; Tang, Hongjun; Ko, Li-Jen; Basavanhally, N.R.; Pardo, F.; Ramsey, David A.; Weld, J.D.; Low, Y.L.; Prybyla, J. A.; Scotti, R.E.; Gasparyan, A.; Maueis, M.; Arney, S.; O’Neill, Steven P.; Pai, C. S.; Malkani, D.H.; Meyers, M.M.; Saluzzi, N.; Oh, Seung-Hoon; Lopez, Orlando; Bogart, Gregory R.; Klemens, F.; Luo, Miaohui; Liu, J.Q.; Teffeau, K.; Ramirez, A. P.; Werder, K.; Griffith, J. E.; Frye, Clint D.; Kunnavakkam, M.V.; Stanton, Steve; Liddle, J. Alexander; Soh, H. Tom; Lee, T.-C.; Nalamasu, O.; Nguyen, Khanh Cong

doi:10.1109/ofc.2002.1036578

Cited by 22 publications

(12 citation statements)

References 1 publication

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“…There are two types of dynamic spectral equalizers (DSE): (1) continuous DSE for flattening the gain of optical amplifiers; [76] and (2) channelized DSE that attenuate each optical channel independently to an extinction ratio greater than 30 dB. [77] The latter is used in optical systems with broadcast-and-select topologies and add-drop capability.…”

Section: Micromirrors For Dynamic Spectral Equalizersmentioning

confidence: 99%

Free-Space Optical MEMS

Wu¹,

Patterson²

2006

Mems

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Section: Micromirrors For Dynamic Spectral Equalizersmentioning

confidence: 99%

Free-Space Optical MEMS

Wu¹,

Patterson²

2006

Mems

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“…Compatible compact optical demultiplexing systems, with four to ten times larger spatial dispersions, have been demonstrated [10], [16], [19], which would enable spectral resolutions of 1 nm to be achieved. Longer devices also require lower actuation voltages; the device illustrated in Fig.…”

Section: Extended C+l Band Equalizermentioning

confidence: 99%

“…Such transparent optical networking demands power level equalization of channels that have not only traversed components with nonuniform loss or gain, but may have arrived from diverse paths. Several technologies have been proposed for high resolution and dynamic range channelized equalizing filters including microelectromechanical systems (MEMS) tilt-mirror arrays [10], [11], [18], liquid crystal [5], [6], and planar light wave circuits [12].…”

Section: Introductionmentioning

confidence: 99%

Interference-Based Micromechanical Spectral Equalizers

Ford

Goossen

Walker

et al. 2004

IEEE J. Select. Topics Quantum Electron.

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Abstract-Dynamic gain equalization filters (DGEFs) are important for high-performance wavelength division multiplexed (WDM) communications. One of the first demonstrated DGEF used a micromechanical etalon filter array illuminated with free-space spectral demultiplexing optics. Here, we present subsequent research on etalon-based dynamic spectral filters, including vertical device structures which linearize and reduce the drive voltage from 70 to 40 V, and spatially-segmented etalons which allow channelized spectral equalization and further reduce drive voltage. We describe a prototype using a simplified cylindrical optomechanical package with a 104-nm broadband spectral response, 7.5-dB insertion loss and less than 16-V operation voltage. Finally, we show the use of a 42-nm bandwidth DGEF prototype with feedback stabilization to more than double the number of channels and operating bandwidth of a conventional Erbium-doped fiber amplifier while maintaining 1-dB power uniformity.

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“…The optical performance of the mirror arrays were tested by using them in a gain equalizer filter 12 and in a dynamic filter with a finely tunable transmission bandwidth 13 .…”

Section: Optical Performancementioning

confidence: 99%

MEMS mirror array for a wavelength-selective 1xK switch

López¹,

Pardo²,

Aksyuk³

et al. 2003

SPIE Proceedings

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We present a new MEMS mirror device that fulfills the requirements needed for its use in a wavelength selective switch. The MEMS device consists of a 1D array of individually controllable tilt micromirrors with almost 100% filling factor. Each mirror in the array is used to manipulate an individual wavelength channel, attenuating or redirecting it into a different output. The mirrors are electrostatically rotated around a fixed pivot and they use a novel concept of angle amplification to increase their out-of-plane angular rotation. A detailed analysis of their mechanical and optical response is presented.

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High-dynamic range channelized MEMS equalizing filter

Cited by 22 publications

References 1 publication

Free-Space Optical MEMS

Free-Space Optical MEMS

Interference-Based Micromechanical Spectral Equalizers

MEMS mirror array for a wavelength-selective 1xK switch

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