DFB Laser, 1550 nm, Up to 60 mW, PM Output, CW CapableThe Optilab DFB 1550A PM is a single frequency CW laser coupled with Polarization Maintaining fiber. Built with Distributed Feed Back Grating (DFB) as cavity reflector, it provides a pure, single longitudinal mode, and extremely stable wavelength source. This laser diode is fabricated with Multiple Quantum Well (MQW) for excellent reliability and stability. It can be used either in CW operation for seeding the external modulation and coherence