Title :
Germanate glass channel waveguides for infrared waveguide lasers
Author :
Tao Luo ; Shibin Jiang ; Yongdan Hu ; Conti, G.N. ; Honkanen, S. ; Mendes, S.B. ; Peyghambarian, N.
Author_Institution :
Opt. Sci. Center, Arizona Univ., Tucson, AZ, USA
Abstract :
Summary form only given. A new germanate glass containing GeO/sub 2/, Al/sub 2/O/sub 3/, Na/sub 2/O, BaO and rare-earth ions was designed and fabricated. Spectral properties of rare-earth ions were characterized. Slab waveguides were fabricated by immersing the samples into a molten salt bath containing AgNO/sub 3/. A variety of ion-exchange temperatures ranging from 2300 C to 3300 C and ion exchange times ranging from a few minutes to several hours were used to characterize the diffusion process. The effective mode indices were measured using the prism-coupler technique, and the index profile was calculated using the inverse WKB method.
Keywords :
WKB calculations; aluminium compounds; barium compounds; germanate glasses; ion exchange; optical glass; optical planar waveguides; refractive index; sodium compounds; waveguide lasers; 2300 to 3300 degC; channel waveguides; diffusion; effective mode indices; germanate glass; index profile; infrared waveguide lasers; inverse WKB method; ion-exchange; molten salt bath; prism-coupler technique; slab waveguides; Chemical lasers; Glass; Laser theory; Optical fibers; Optical films; Optical planar waveguides; Optical waveguides; Planar waveguides; Slabs; Waveguide lasers;
Conference_Titel :
Quantum Electronics and Laser Science Conference, 1999. QELS '99. Technical Digest. Summaries of Papers Presented at the
Conference_Location :
Baltimore, MD, USA
Print_ISBN :
1-55752-576-X
DOI :
10.1109/QELS.1999.807652
