Communications: ISDN services are introduced worldwide coherent optical communications components are developed in Japan fiber-optic submarine cable systems to span the Pacific additional spectrum space is allocated for mobile communications

IEEE Spectrum ◽  
1987 ◽  
Vol 24 (1) ◽  
pp. 42-44 ◽  
Author(s):  
Trudy E. Bell
Keyword(s):  
Mobile Communications ◽  
Optical Communications ◽  
Fiber Optic ◽  
Submarine Cable ◽  
The Pacific ◽  
Cable Systems ◽  
Additional Spectrum

300°C Optical Communications

2021 ◽  
Vol 2021 (HiTEC) ◽  
pp. 000013-000017
Author(s):  
Emad Andarawis ◽  
Cheng-Po (Paul) Chen ◽  
Baokai Cheng
Keyword(s):  
Optical Communications ◽  
Dark Current ◽  
Room Temperature ◽  
Fiber Optic ◽  
Extreme Temperature ◽  
Wide Bandgap ◽  
Fiber Optic Cable ◽  
Optical Link ◽  
Data Rates ◽  
Light Coupling

Abstract A high temperature optical link capable of multi-megabits per second data rates at 300°C is presented. The system utilizes wide bandgap optical sources and detectors to achieve extreme temperature operation. Testing was conducted at multiple temperatures between room temperature and 325°C and at multiple light source currents. Light coupling into and out of a UV capable optical fiber was evaluated, and a model was created utilizing the test data of the photodiode dark current and the fiber optic cable insertion loss and attenuation and assess optical communications capability to 325°C and beyond.

Fiber optic bundle array wide field-of-view optical receiver for free space optical communications

2010 ◽  
Vol 35 (21) ◽  
pp. 3559 ◽  
Author(s):  
Daniel V. Hahn ◽  
David M. Brown ◽  
Nathan W. Rolander ◽  
Joseph E. Sluz ◽  
Radha Venkat
Keyword(s):  
Optical Communications ◽  
Free Space ◽  
Fiber Optic ◽  
Optical Receiver ◽  
Field Of View ◽  
Wide Field ◽  
Free Space Optical ◽  
Wide Field Of View
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