Optical and spectroscopic properties of soda-lime alumino silicate glasses doped with Er3+ and/or Yb3+

Crystal structure and optical spectra of LiLa9(SiO4)6O2 crystals activated with Er3+

“…4, is composed of some weak bands in the 950-1100 nm region, ascribed to the 4 I 11/2 -4 I 15/2 transition, and of a strong band at around 1550 nm, assigned to the 4 I 13/2 -4 I 15/2 transition. As expected, this band is broad and poorly structured, very similar to those found for Er 3+ -doped glasses [9,10]. In particular its effective linewidth [11], of about 80 nm, is similar to that found for borate glasses (77.5 nm, [10]), and larger than that found for lead germanate (52-4 nm, [12]) and alumino-silicate (52 nm, [9]) glasses.…”

Erbium‐doped integrated waveguide amplifiers and lasers

“…Growth methods can be divided into substrate growth vs. layer deposition. Substrate growth methods include Czochralski crystal growth [99] and melting of appropriate precursors followed by cooling [125,130,144,146,147], as is employed to fabricate commercial Er-doped silicate and phosphate glasses [118,119,[148][149][150]. The advantage of entire substrate growth is the high purity and excellent control over the uniformity and concentration of doping.…”

“…The refractive index modification occurs at the focal point of the high-energy pulses and in the ion-implanted region for femtosecond laser writing and focused proton beam writing, respectively. He + ion implantation [99], ion exchange [118,119,123,125,130,136,144,146,148,149,[198][199][200], and ion indiffusion [34,81] are also used to alter the local refractive index through photolithography and patterning over a large wafer area. Typically, the index change which results from these methods is on the order of 1¢10 3 to 1¢10 2 .…”

“…These include silicate glass [32,[114][115][116][117], phosphate glass [39,81,[118][119][120][121][122][123][124], fluoride glass [125], and amorphous aluminum oxide [36,[126][127][128][129]. In addition, multi-component oxide glasses [38,[130][131][132][133][134][135][136][137][138][139][140][141][142][143][144][145] offer the possibility to tailor various properties such as the gain spectrum and the refractive index. Glass hosts have relatively low refractive indices, which are closely matched to those of standard optical fibers.…”

AI2O3:Er3+ as a gain platform for integrated optics

“…Because of these advantages, and the success of Er-doped glass fiber amplifiers and lasers, many glass host materials have been investigated for active planar devices. These include silica [18][19][20][21][22], phosphate glass [23][24][25][26][27][28][29][30][31][32], fluoride glass [33], aluminum oxide [34][35][36][37][38] and numerous multi-component glasses [39][40][41][42][43][44][45][46][47][48][49][50][51][52][53][54][55][56][57]. Glass hosts have relatively low refractive indices, which are closely matched to those of standard optical fibers.…”