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 MediaArticlesAmplitude-Only Modulator Targets Photonic Device EfficiencyA thin-film, amplitude-only spatial light modulator made from phase-change-based material was developed by researchers at the University of Exeter and the Institute of Optics in Madrid. The...Photonics Spectra November 2023 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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