Tunable wavelength range from 1480 to 1640 nanometers.Continuous-wave, mode-hop-free operation across the entire tuning range.Laser linewidth less than 200 kHz.Wavelength setting resolution of 0.1 picometers or better.Wavelength accuracy of �15 picometers or better in step mode and continuous sweep operation.Wavelength stability of �5 picometers or better over typical operating conditions.Minimum output power of 7 dBm across the tuning range.Fast wavelength sweep capability from 1 to 200 nm/s with programmable control. Fine tuning capability over at least 10 GHz. Fiber-coupled output compatible with standard single-mode fiber systems with polarizing maintaining fiber output coupling.Remote control via USB, GPIB, and Ethernet interfaces.