Request InfoAnritsu Co.A tunable laser source that characterizes optical components for WDM transmission systems has been released by Anritsu Co. The MG9541A covers the 1510- to 1640-nm range and analyzes passive and active optical components used in C- and L-band applications. The first of its three ports has an optical attenuator with a variable output level of 0 to -30 dBm and a dynamic range of >70 dB when used with an optical spectrum analyzer in tracking mode, making it suitable for characterizing optical filters. 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