The EDFL-Nano-LP-1550-2-4-800-COL from Nuphoton Technologies is an Erbium-Doped Nanosecond Fiber Laser that operates at a wavelength of 1550 nm. It provides an output power of 800 mW. The laser produces up to 4 µJ of energy per pulse with a pulse repetition rate from 200 kHz-1 MHz and has a pulse width of 2 ns. It requires a DC supply of 12 V and supports RS-232 and TTL control interfaces. This microprocessor-controlled laser is available in a module that measures 100 x 75 x 25 mm with electrical interface connectors.