... /1550nm wavelength stable laser source, output power adjustable, stepping-4dBm.5)Optional 650nm visible laser source, convenient for testing bending, fracture ... Loss (dB)≤ 1.5Optical Fiber ModelSMConnector TypeFC (FC,SC,ST connector)Other parameterStable Laser sourceEmitter Type: FP-LDWavelength: 1310/1490/1550nmOutput ...