Coherent communication systems research and development at AT&T Bell Laboratories, Solid State Technology Center

1991 ◽  
Author(s):  
Yong-Kwan Park ◽  
Jean-Marc P. Delavaux ◽  
Robert J. Tench ◽  
Terry W. Cline ◽  
Liang D. Tzeng ◽  
...  
Keyword(s):  
Solid State ◽  
Research And Development ◽  
Communication Systems ◽  
Technology Center ◽  
Systems Research ◽  
Coherent Communication ◽  
State Technology

Optical bistable switching in pyran dye-doped polymers

2014 ◽  
Vol 23 (02) ◽  
pp. 1450018 ◽  
Author(s):  
Purnima ◽  
Devendra Mohan
Keyword(s):  
Solid State ◽  
Communication Systems ◽  
Optical Bistability ◽  
Nonlinear Refraction ◽  
Nonlinear Behavior ◽  
Single Mode ◽  
Third Order ◽  
Bistable Switching ◽  
Fabry Perot ◽  
Doped Polymers

In the present frame of work, optical bistability using a Fabry–Perot (FP) cavity containing 4-dicyanomethylene-2-methyl-6-p-dimethylaminostyryl-4H-pyran (DCM) dye entrapped in poly-methylmethacrylate (PMMA) matrix is experimentally investigated. Optical nonlinear behavior of solid-state samples is studied using a single-mode Q-switched nanosecond Nd:YAG laser operating at 532 nm. Various optical nonlinear parameters such as nonlinear refractive index (n2) and third-order susceptibility (χ3) of the material are numerically estimated from bistability loops. The origin of optically bistable behavior is attributed to photoisomerization-assisted nonlinear refraction phenomenon. It is observed that nonlinear refraction dominates over nonlinear absorption in giving rise to the optical bistability. The study shows that DCM dye entrapped in solid-state matrices are promising candidate for polymer-based optical switches, data processing, and communication systems.

scholarly journals A novel single-phase white light emitting phosphor Ca9La(PO4)5(SiO4)F2:Dy3+: synthesis, crystal structure and luminescence properties

RSC Advances ◽  
2016 ◽  
Vol 6 (29) ◽  
pp. 24577-24583 ◽  
Author(s):  
Haikun Liu ◽  
Libing Liao ◽  
Maxim S. Molokeev ◽  
Qingfeng Guo ◽  
Yuanyuan Zhang ◽  
...  
Keyword(s):  
Crystal Structure ◽  
High Temperature ◽  
Solid State ◽  
White Light ◽  
Single Phase ◽  
Luminescence Properties ◽  
Light Emitting ◽  
State Technology

A novel single-phase white light emitting phosphor Ca9La(PO4)5(SiO4)F2:Dy3+ was prepared through traditional high-temperature solid state technology.

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