Photosensitivity of rare-earth-doped ZBLAN fluoride glasses

被引：22

作者：

Williams, GM ^{[1
]}

Tsai, TE ^{[1
]}

Merzbacher, CI ^{[1
]}

Friebele, EJ ^{[1
]}

机构：

[1] VIRGINIA POLYTECH INST & STATE UNIV,DEPT ELECT ENGN,BLACKSBURG,VA 24061

来源：

JOURNAL OF LIGHTWAVE TECHNOLOGY | 1997年 / 15卷 / 08期

关键词：

cerium; fiber Bragg gratings; fluoride glass; photosensitivity; rare-earth;

D O I：

10.1109/50.618341

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We have performed experiments to elucidate the mechanism of photosensitivity in rare-earth-doped fluorozirconate (ZBLAN) glasses. Glasses doped with Ce, Tb, Tm, and Pr were studied. Permanent holographic gratings were written in bulk samples using 248 nm light, with the strongest gratings observed in Ce:ZBLAN. Ultraviolet (UV)-induced changes in both absorption and electron spin resonance (ESR) spectra were observed. In the Ce-doped glasses, the grating formation dynamics were recorded as a function of write beam intensity and Ce concentration. The results indicate that the mechanism of photosensitivity involves color center(s) creation through a stepwise two photon excitation of a Ce ion. The color center(s) can be subsequently bleached by one photon at 248 nn.

引用

页码：1357 / 1362

页数：6

共 20 条

[1]

[Anonymous], 1990, Glass Science and Technology, DOI DOI 10.1016/B978-0-12-706707-0.50010-4

[2]

BOOTH IJ, 1995, OSA TOP M PHOT QUAD, P273

[3] PHOTOSENSITIVITY IN CE-3+-DOPED OPTICAL FIBERS [J].

DONG, L ;

WELLS, PJ ;

HAND, DP ;

PAYNE, DN .

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS, 1993, 10 (01) :89-93

[4] RADIATION EFFECTS IN ZRF4 BASED GLASSES .2. OPTICAL-ABSORPTION [J].

FRIEBELE, EJ ;

TRAN, DC .

JOURNAL OF NON-CRYSTALLINE SOLIDS, 1985, 72 (2-3) :221-232

[5]

FRIEBELE EJ, 1985, COMMUN AM CER SOC, V68, pC279

[6] CHLORINE-ASSOCIATED DEFECT CENTERS IN IRRADIATED ZRF4 BASED GLASSES [J].

GRISCOM, DL ;

TRAN, DC .

JOURNAL OF NON-CRYSTALLINE SOLIDS, 1985, 72 (01) :159-163

[7] COMPUTER-SIMULATION ANALYSIS OF THE ESR-SPECTRA OF V-TYPE CENTERS IN IRRADIATED HEAVY-METAL FLUORIDE GLASSES [J].

GRISCOM, DL ;

FRIEBELE, EJ .

PHYSICAL REVIEW B, 1991, 43 (10) :7427-7441

[8] ELECTRON-SPIN RESONANCE DETERMINATION OF THE REDOX STATE OF IRON AND ITS RELATIONSHIP TO RADIATION-INDUCED DEFECT CENTERS IN OXIDIZED AND REDUCED ZRF4-BASED GLASSES [J].

GRISCOM, DL ;

GINTHER, RJ .

JOURNAL OF NON-CRYSTALLINE SOLIDS, 1989, 113 (2-3) :146-160

[9] DEFECT CENTERS IN HEAVY-METAL FLUORIDE GLASSES - A REVIEW [J].

GRISCOM, DL .

JOURNAL OF NON-CRYSTALLINE SOLIDS, 1993, 161 :45-51

[10]

GRISCOM DL, 1991, FLUORIDE GLASS FIBER, P307

← 1 2 →