Harmonized system of quality assessment for electronic components. Family specification. Single-mode optical fibre cables to beused as underwater cables for lakes and river crossings, etc

2015 ◽  
Keyword(s):  
Quality Assessment ◽  
Optical Fibre ◽  
Single Mode ◽  
Electronic Components ◽  
Underwater Cables

The Clifford Parterson Lecture, 1983 Optical fibre communication, present and future

1984 ◽  
Vol 392 (1803) ◽  
pp. 247-277 ◽  
Keyword(s):  
Semiconductor Laser ◽  
Optical Fibre ◽  
Single Mode ◽  
Production Equipment ◽  
Heterodyne Detection ◽  
Electronic Components ◽  
Picosecond Pulses ◽  
Nonlinear Properties ◽  
Cost Reductions ◽  
Optical Fibre Communication

The original objectives established in the mid-1960s for optical fibre systems were more than met by the first production equipment in1980. Now, second-generation single-mode systems, with still greater per­formance, are entering service. However, current research shows that the technology is still in its infancy. The use of highly coherent semiconductor laser transmitters coupled with heterodyne detection has given large improvements in receiver sensitivity. Understanding the nonlinear properties of glass fibres has paved the way to higher transmitter powers and the use of picosecond pulses. Many integrated-optic components such as modulators, couplers and other components will probably be used while the monolithic integration of optical and electronic components may lead to further cost reductions. The paper will describe these advances, examine their possible appli­cations in systems and discuss how these may be exploited in the future.

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