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Closed-Loop Control of MEMS Variable Optical Attenuator (VOA) |
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| Authors: | H. Cai X. M. Zhang A. Q. Liu Y. X. Wang C. Lu |
| Affiliation: | 1. Institute for Infocomm Research, Unit 230, Innovation Center, Block 2, 18 Nanyang Drive, Singapore 639798 2. School of Electrical & Electronic Engineering, Nanyang Technological University, Nanyang Avenue Singapore 639798 3. School of Electrical & Electronic Engineering, Nanyang Technological University, Nanyang Avenue Singapore 639798;Institute for Infocomm Research, Unit 230, Innovation Center, Block 2, 18 Nanyang Drive, Singapore 639798 |
| Abstract: | This paper reports the development of an optical power regulator based on surface-micromachined variable optical attenuators (VOAs). By use of closed-loop control circuits, each VOA module implements the functions of power setpoint tracking, disturbance rejection and ripple suppression. |
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