Request InfoInnovation PhotonicsQuantum cascade lasers can be troubled by feedback. InnPho’s optical isolators prevent reflections (feedback) from returning back into the laser. Now in production are wavelength-tunable mid-IR optical isolators operating at center wavelengths of 4.5 µm, 8 µm and 10.6 µm. Typical transmission of ~90% and isolation of 500:1 to 1000:1.See full productRelated content from Photonics MediaPRODUCTSPhotonics Spectra June 2023 IssueCO2 Laser Focusing LensesLaser Research Optics’ CO2 zinc selenide (ZnSe) laser focusing lenses are designed for 10.6-µm, 200-W to 400-kW steel cutting lasers that cut heavy steel fabrications. They come in...BioPhotonics May/Jun 2023 IssueBeam ShaperThe πShaper 12_12_2.05_HP from AdlOptica Optical Systems GmbH is a beam shaper for high-power 2-µm lasers. 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The new DayOptics image is a testament to our...PHOTONICS BUYERS' GUIDE CATEGORIESOptical IsolatorsAn optical isolator is a device used to suppress or redirect backscattered or backreflected light.Process Control Laser SystemsDistributed Feedback LasersA distributed feedback laser is a laser system in which feedback is used to make certain modes in the resonator oscillate more strongly than others.Narrowband LasersCOMPANIESPhotonics Buyers' GuideFOCtek Photonics Inc.FOCtek provides customers with all types of custom manufactured lenses, Precision Optical Components, Polarizing Optics, Prisms, Filters, Coatings, Optical Systems, Crystals, Nonlinear Crystals,...Photonics Buyers' GuideOhara CorporationOHARA manufactures more than 130 environmentally safe optical glass types, free of both lead and arsenic. More than 300 tons of optical glass are melted per month, available in the following forms of...Photonics Buyers' GuideCASTECH INC.CASTECH is a recognized leading supplier of nonlinear optical crystals, laser crystals and precision optical components for laser, telecom, medical, analysis and detector markets. Products...Photonics Buyers' GuideExcelitas Technologies Corp.Excelitas Technologies® Corp. is a leading industrial technology manufacturer focused on delivering innovative, market-driven photonic solutions to meet the illumination, optical, optronic,...