Product Description Ando AQ4213 Light Source 1310/1550nm Laser Diode The LD unit has an internal isolator that maintain optical output level stability at ?0.003dB. Optical power can be decreased in 0.1dB steps to 6.0dB. A wide variety of optical connectors can be used just be exchanging the universal and connector adapters. Specifications: Emission Wavelenght (nm):1310/1550 ? 20 Spectral Halfwidth/width (nm):5/10 or less Optical Outut Level: -1 or more Applicable Optical Fiber: SM Requires AQ9434 universal adapter (option)