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Liquid crystal enabled multi-channel power equalizer and stabilizer |
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| Authors: | Ru-Pin Pan Chia-Rong Sheu Yi-Fan Lai |
| Affiliation: | a Department of Electrophysics, National Chiao Tung University, No. 1001, Ta Hsueh Road, Hsinchu 30010, Taiwan, ROC b Institute of Electro-Optical Science and Engineering, National Cheng Kung University, No. 1, University Road, Tainan 701, Taiwan, ROC c Center for Measurement Standards, 321 Kuang Fu Road, Section 2, Hsinchu 30071, Taiwan, ROC d Department of Photonics and the Institute of Electro-Optical Engineering, National Chiao Tung University, No. 1001, Ta Hsueh Road, Hsinchu 30010, Taiwan, ROC |
| Abstract: | Automatic power equalization and stabilization of a liquid crystal enabled channel-selectable optical demultiplexer is demonstrated. The variation among output signals from different channels was reduced from ∼10 dB to 0.15 dB with feedback control. The minimum ripple level of a single channel is ∼0.05 dB. As a variable optical attenuator (VOA), the attenuation range of the device is ∼12.6 dB. |
| Keywords: | 06.30.Bp 07.60.Ly |
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