MOUNTAIN VIEW, Calif., Dec. 6 -- Spectra-Physics Inc. said it will take a $28 million to $33 million pretax charge in the fourth quarter related to certain telecommunications assets. The company said the impaired assets are related to its narrowband filter products and cover fixed assets, operating leases and inventory. Spectra-Physics said it doesn't intend to exit the telecommunications market.Read full articleRelated content from Photonics MediaArticlesPerovskite Optoelectronic Logic Gates Activate Sensor PlatformsResearchers at the Korea Institute of Science and Technology (KIST) and the Gwangju Institute of Science and Technology (GIST) designed an optoelectronic logic gate (OELG) made from organic-inorganic...Photonics.com 5/16/2022High-Efficiency Frequency Comb Invites Range of Optical EndeavorsOn-chip laser frequency combs are a promising technology for applications including environmental monitoring, optical computing, astronomy, and metrology. 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