Agilent (HP/Keysight) 81642A Tunable Laser Source (TLS) with attenuator (C+L band)

The Agilent (HP/Keysight) 81642A Tunable Laser Source (TLS) with attenuator (C+L band) is a high-power external-cavity laser instrument designed for precision wavelength tuning, signal generation, and power level control in fiber optic networks and DWDM component testing. It supports a continuous tunable wavelength range from 1510 nm to 1640 nm covering both C- and L-bands, mode-hop free sweeping, wavelength resolution of 0.1 pm (12.5 MHz at 1550 nm), absolute wavelength accuracy of ±0.015 nm, optical power stability of ±0.01 dB, an integrated optical attenuator with 60 dB attenuation range, and a built-in real-time wavelength meter, enabling reliable, repeatable testing of optical amplifiers at high stimulus power, EDFA gain characterization, and DWDM passive component verification. With a modular form factor compatible with the Agilent 8163/8164/8166 lightwave measurement platforms, it delivers precise, dynamic-range-flexible characterization for advanced optical amplifier, R&D, and manufacturing applications. https://assetrelay.com/shop/media/81642A_Specifications.pdf