USource 1310 1550 Dual Wavelength Laser Diode BOSA Module includes two Fabry-Perot (FP) Laser Diodes (LDs) with center wavelengths at 1310nm and 1550nm respectively. Beside each LD, there is a photodetector to monitor the output power of each LD. The monitor will output current which is in proportional to the output power of the LD. The output power of the two LDs are both going to a single 9/125μm fiber pigtail. This fiber pigtail is terminated with an FC/PC connector.