The QDFBLD-1550-100 from QPhotonics is a wavelength stabilized single mode fiber coupled DFB laser diode that operates from 1528 to 1565 nm. It provides an output power of 100 mW and has a rise time of 0.5 ns. The laser has a built in optical isolator, monitor photodiode, thermo-electric cooler and thermistor. It is available in a module with polarization maintaining (PM) fiber pigtail. Optional FC/APC connector is also available.