The Optilab DFB-1310-DM-4 directly-modulated (DM) DFB laser is a cost effective 1310 nm wavelength laser source for 4 GHz analog or 5 Gb/s digital transmission optical link. The MQW DFB laser features 20 mW of output optical power, high Side Mode Suppression Ratio (SMSR), low residual chirp, and a builtin thermoelectric cooler, thermistor, and a rear-facet monitor photodiode for external optical power control. Contact Optilab for more information.