概要（Overview）

The MS9001A/MS9001A1 offer level measurements from — 70dBm to + lOdBm with wide dynamic range (stray light level) of more than 40dB (MS9001A1) at ±lnm from the peak. Ghosts are virtually eliminated to give a clear picture of any DFB laser output spectrum. Anritsu's design enables a 0.3 second sweep for precise analysis of spectrum instability due to bias current and temperature changes in high-frequency modulation. They abo guarantee accurate level measurement (within 2dB) over a wider range (0.6—1.75am). The MS9001A/MS9001A1 quickly locate the key portion of any spectrum with an auto-range function, and can process peak search and peak-tocenter functions.