Coaxial pigtailed laser diodes are a specialized type of laser diodes that come with a pigtail – like fiber optic attachment.The Our coaxial design ensures that the electrical signals are properly routed to the diode while minimizing interference with the optical output. Our coaxial pigtailed laser diodes include InGaAs pigtail photodiode, 1270nm~1610nm CWDM laser diode, 1625nm 1650nm DFB laser diode, CWDM with TEC cooler etc.