High-speed programmable optical attenuator.

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dc.contributor.authorRiza, Nabeel A.
dc.contributor.authorYaqoob, Zahid
dc.date.accessioned2020-06-23T14:33:23Z
dc.date.available2020-06-23T14:33:23Z
dc.date.issued2000-07-13
dc.date.updated2020-06-23T11:43:17Z
dc.description.abstractA 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.description.statusPeer revieweden
dc.description.versionPublished Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationRiza, 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: 10.1117/12.391937en
dc.identifier.doi10.1117/12.391937en
dc.identifier.eissn1996-756X
dc.identifier.endpage100en
dc.identifier.issn0277-786X
dc.identifier.journaltitleProceedings of SPIEen
dc.identifier.startpage96en
dc.identifier.urihttps://hdl.handle.net/10468/10171
dc.identifier.volume4046en
dc.language.isoenen
dc.publisherSociety 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.subjectSignal attenuationen
dc.subjectAcousto-opticsen
dc.subjectAttenuatorsen
dc.subjectOptical attenuatorsen
dc.subjectAcousticsen
dc.subjectGRIN lensesen
dc.subjectBragg cellsen
dc.titleHigh-speed programmable optical attenuator.en
dc.typeConference itemen
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