High-speed programmable optical attenuator.

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dc.contributor.author Riza, Nabeel A.
dc.contributor.author Yaqoob, Zahid
dc.date.accessioned 2020-06-23T14:33:23Z
dc.date.available 2020-06-23T14:33:23Z
dc.date.issued 2000-07-13
dc.identifier.citation Riza, N. A. and Yaqoob, Z. (2000) 'High-speed programmable optical attenuator', Proceedings of SPIE, 4046, Advances in Optical Information Processing IX. AeroSense 2000 Orlando, FL, United States. doi: 10.1117/12.391937 en
dc.identifier.volume 4046 en
dc.identifier.startpage 96 en
dc.identifier.endpage 100 en
dc.identifier.issn 0277-786X
dc.identifier.uri http://hdl.handle.net/10468/10171
dc.identifier.doi 10.1117/12.391937 en
dc.description.abstract A high-speed programmable optical attenuator (POA) is introduced that can provide high dynamic range and high resolution attenuation control. An acousto-optic Bragg cell has been used to realize the desired attenuator. Various practical architectures have been proposed to prove the concept. A typical acousta-optic deflector (AOD) based design offers a dynamic range of 46.11 dB. The average resolution is 3.08 dB/volt whereas the best resolution achieved is 0.39 dB/volt. The response time of the AO attenuator is in the sub CLS regime, and was observed as low as 0.175 mu s. The polarization dependent loss (PDL) was about 0.7 dB, whereas the excess losses were about 1.5 dB.A high-speed programmable optical attenuator (POA) is introduced that can provide high dynamic range and high resolution attenuation control. An acousto-optic Bragg cell has been used to realize the desired attenuator. Various practical architectures have been proposed to prove the concept. A typical acousta-optic deflector (AOD) based design offers a dynamic range of 46.11 dB. The average resolution is 3.08 dB/volt whereas the best resolution achieved is 0.39 dB/volt. The response time of the AO attenuator is in the sub CLS regime, and was observed as low as 0.175 mu s. The polarization dependent loss (PDL) was about 0.7 dB, whereas the excess losses were about 1.5 dB. en
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher Society of Photo-Optical Instrumentation Engineers (SPIE) en
dc.rights © 2000 Society of Photo-Optical Instrumentation Engineers (SPIE). One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited. en
dc.subject Signal attenuation en
dc.subject Acousto-optics en
dc.subject Attenuators en
dc.subject Optical attenuators en
dc.subject Acoustics en
dc.subject GRIN lenses en
dc.subject Bragg cells en
dc.title High-speed programmable optical attenuator. en
dc.type Conference item en
dc.internal.authorcontactother Nabeel Riza, Electrical & Electronic Engineering, University College Cork, Cork, Ireland. +353-21-490-3000 Email: n.riza@ucc.ie en
dc.internal.availability Full text available en
dc.date.updated 2020-06-23T11:43:17Z
dc.description.version Published Version en
dc.internal.rssid 249311628
dc.description.status Peer reviewed en
dc.identifier.journaltitle Proceedings of SPIE en
dc.internal.copyrightchecked Yes
dc.internal.licenseacceptance Yes en
dc.internal.conferencelocation Orlando, FL, United States en
dc.internal.IRISemailaddress n.riza@ucc.ie en
dc.identifier.eissn 1996-756X


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