You equipment will be returned after calibration with: Calibration label- Calibration certificate- Calibration data. Specifications Calibrated: Total Output Power Power Stability Return Loss Spectral Density Output Spectrum Instrumentation used during this calibration is traceable to N.I.S.T (National Institute of Standards and Technology) and C.N.R.C. (Canadian National Research Council). Agilent 83438A repair or adjustment: If your unit does not pass calibration, we will quote a complete repair and get your Erbium ASE Source back in working condition. We will solve any error code or error message you might encounter. Contact us for an explaination of our evalutation process.