KLS-35 fiber optic light source is characterized by stable output optical power, wavelength and spectral width with a small range of stable changes. Provide single-mode fiber measurement (1310nm/1550nm) dual-wavelength laser output and multi-mode fiber measurement (850nm/1300nm) dual-wavelength laser output, and can also provide single and multi mode (850nm/1300nm/1310nm/1550nm) four-wavelength laser output And PON mode (1310nm/1490nm/1550nm) three-wavelength laser output. Mainly used for FTTX network and fiber optic testing. When combined with Optical power meter, it is used to measure optical power and end-to-end optical loss. High Precision Fiber Optic Light Source This is SM&MM Mode: 850/1300nm + 1310/1550nm Product Features Typical output power＞5dBmOutput stability ±0.05dB Ergonomic Design One-handed Operation Modulation Carrier Output Detachable Silicon Rubber Pad Shock-proof & Drop-proof 2.5mm Universal Interface + FC SC Adaptors Product Features: 1 ● 2.5mm universal interface + SC Adaptor 2 ● MM wavelengths 850nm/1300nm & SM wavelengths 1310/1310nm 3 ● Typical output power：-5dB 4 ● Support automatic self-calibration 5 ● Silicon shell protection design, drop proof 2m Remarks: It is now in hot sale season. If you find it is out of F B A stock, we will ship it from our USA local warehouse, which is also very fast.