TY - JOUR AU - Sanford, Norman AU - Malone, K. AU - Larson, Donald C2 - Optics Letters DA - 1991-07-15 00:07:00 LA - en M1 - 16 PB - Optics Letters PY - 1991 TI - Extended Cavity Operation of Rare-Earth Doped Glass Waveguide Lasers ER -