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Fiber Lasers & AmplifiersThorlabs' fiber lasers are suitable for a range of applications in the infrared region. Our fiber lasers include a femtosecond ytterbium (Yb) fiber laser (1035 nm), an Optical Parametric Amplifier (OPA) with integrated Yb fiber laser (Signal: 1275 - 1800 nm, Idler: 2.4 - 4.4 μm), an MIR supercontinuum source (1.3 - 4.5 μm), thulium-doped fiber lasers (1800 - 2050 nm), a femtosecond fiber laser with emission at 2 μm, and erbium-doped zirconium fluoride (ZrF4) fiber lasers (2.7 μm). In addition to Thorlabs-manufactured options, our strategic partner, Menlo Systems, offers an extensive line of femtosecond fiber lasers. Thorlabs also manufactures benchtop optical amplifiers with ytterbium-doped fiber (1025 - 1075 nm), praseodymium-doped fluoride fiber (1280 - 1330 nm), and erbium-doped fiber (1530 - 1535 nm).