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 MediaArticlesMaterials-Based Solution Accelerates Photonic ComputingResearchers at the University of Central Florida (UCF) have introduced a previously undescribed class of topological insulators that could lead to more power efficient photonic circuits in a...Photonics Spectra August 2022 IssueMulticore Fiber Enables High-Speed Communications MilestoneThe NTT Corp. and Kitami Institute of Technology (KIT) achieved a milestone in high-speed communications. 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