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Three-dimensional MEMS photonic cross-connect switch design and performance

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14 Author(s)
Xuezhe Zheng ; Calient Networks, Goleta, CA, USA ; Kaman, V. ; Shifu Yuan ; Yuanjian Xu
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Photonic cross-connects (PXC) play a key role in all-optical transparent networks. In this paper, the optical design and modeling of a three-dimensional microelectromechanical system (3-D MEMS) based optical switch are discussed. Basic design rules and considerations are reviewed and used to determine the optimum configuration for free-space optical switches with more than 300 ports. The optical performance of a 256 × 256 PXC system, including a 347 × 347 nonblocking core switch and auxiliary 2 × 2 optical switches for 1:1 protection and optical taps for power monitoring, is presented. The core switch has 1.4-dB median insertion loss, 1.5-dB wavelength dependent loss across a broadband of 1260-1625 nm, and a typical polarization dependent loss of 0.1 dB. Environmental tests including temperature and vibration are described.

Published in:

Selected Topics in Quantum Electronics, IEEE Journal of  (Volume:9 ,  Issue: 2 )

Date of Publication:

March-April 2003

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