Sousa, JM; Nilsson, J; Renaud, CC; Alvarez-Chavez, JA; Grudinin, AB; Minelly, JD; (1999) Broad-band diode-pumped ytterbium-doped fiber amplifier with 34-dBm output power. IEEE Photonics Technology Letters , 11 (1) 39 - 41. 10.1109/68.736383. Green open access