Additional Features: 1500 nm to 1565 nm Single mode operation at each wavelength. Accurate and fast tuning. Independent control of power and wavelength. Easily ordered bundles to measure component loss. Measurement and documentation capabilities available without computer. Measurements routines to measure loss, return loss and coupling ratios automatically The Agilent 8168A tunable laser source is a basic tool for characterizing and testing optical amplifiers and components. The Agilent 8168A operates in the 1550 nm window. A built-in side mode filter ensures that a true single-mode laser line is generated for every wavelength point, eliminating any possible multimoding. A 0.001 nm resolution also makes these tunable lasers valuable tools for heterodyne measurements and coherent applications. Both tunable lasers provide independent control of output power and wavelength on a what-you-set-is-what-you-get basis. Wavelength scans, which require an output power that is stable over time and flat across all wavelengths, can be performed reliably, accurately, and quickly.