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==Work activity==
*Since 1978 worked at Yerevan State University in the Chair of Optics:
* In 1978- 1979 as a Senior Laboratory.* In 1979- 1986 as a Engineer.* In 1986- 1993 as a Researcher.* In 1993- 2000 as a Assistant.* In 2000- 2009 as a Associate Professor.
* Since 2009 as a Professor.