2 µm Fiber Coupled Single Mode Laser

SKU: TMFL

The TMFL series of Thulium-Doped (Tm) Fiber Lasers are benchtop Fabry-Perot fiber laser sources featuring single mode fiber output in the 2 µm band and simple operation for test and measurement applications. Each fiber laser is constructed using a thulium-doped fiber as the gain medium and two fiber Bragg gratings to select the laser wavelength. The TMFL has narrow-bandwidth FBG reflectors and smaller longitudinal mode spacing (typically <200 MHz compared to >100 GHz for semiconductor lasers). This enables the RMS spectrum to be much narrower (≤0.2 nm versus a few nm) with both short-term and long-term spectral stability. These features make the Tm-doped fiber lasers ideal for applications where spectral stability or narrow spectral width is required. Four wavelength options are available from stock: 1850, 1940 nm, 2000 nm, and 2050 nm. Tm-doped fiber can also support other emission wavelengths from 1800 nm to 2050 nm. Custom fiber lasers with different emission wavelengths are available upon request by contacting sales.  The laser output is accessible via a fiber connector bulkhead that is compatible with 2.0 mm narrow key FC/APC connectors. An integrated isolator at the output minimizes the impact of back reflections on the laser cavity. It has a front power control knob and USB computer interface. An emission switch adds safety.