Fundamental mode in advanced technology optical fibres by two-point quasi-rational approximations

2006 ◽  
Vol 358 (1) ◽  
pp. 80-84
Author(s):  
E. Castro ◽  
P. Martín ◽  
C.L. Ladera
1982 ◽  
Vol 18 (21) ◽  
pp. 936
Author(s):  
F. Alard ◽  
L. Jeunhomme ◽  
M. Monerie ◽  
P. Sansonetti ◽  
C. Vassallo

1981 ◽  
Vol 17 (25-26) ◽  
pp. 958 ◽  
Author(s):  
F. Alard ◽  
L. Jeunhomme ◽  
P. Sansonetti

Laser Physics ◽  
2020 ◽  
Vol 30 (12) ◽  
pp. 126204
Author(s):  
J R Ek-Ek ◽  
F Martinez-Pinon ◽  
J A Alvarez-Chavez ◽  
D E Ceballos-Herrera ◽  
R Sanchez-Lara ◽  
...  

1982 ◽  
Vol 18 (16) ◽  
pp. 693
Author(s):  
F. Alard ◽  
L. Jeunhomme ◽  
M. Monerie ◽  
P. Sansonetti ◽  
C. Vassallo

The development of optical fibres for transmission has given us an advanced technology capable of producing waveguides of unequalled transparency and axial uniformity. This can be adapted to produce a range of active and passive components that have many advantages, including their suitability for connection into optical fibre systems. These may in turn enable more complex frequency-selective systems to be built economically. Passive components include resonators and reflectors with very low loss and linewidths that are comparable with the modulation rates, possibly allowing radio type filtering and separation; splitters and separators with a wide variety of characteristics and polarization-selective components. In each case the performance achieved is better than that achieved by any other method. Active devices include laser sources and amplifiers of various types and nonlinear switches and pulse compressors; these too show performance ahead of that achieved by other means. This paper reviews these results and discusses applications to broadband networks.


2019 ◽  
Vol 4 (2) ◽  
pp. 356-362
Author(s):  
Jennifer W. Means ◽  
Casey McCaffrey

Purpose The use of real-time recording technology for clinical instruction allows student clinicians to more easily collect data, self-reflect, and move toward independence as supervisors continue to provide continuation of supportive methods. This article discusses how the use of high-definition real-time recording, Bluetooth technology, and embedded annotation may enhance the supervisory process. It also reports results of graduate students' perception of the benefits and satisfaction with the types of technology used. Method Survey data were collected from graduate students about their use and perceived benefits of advanced technology to support supervision during their 1st clinical experience. Results Survey results indicate that students found the use of their video recordings useful for self-evaluation, data collection, and therapy preparation. The students also perceived an increase in self-confidence through the use of the Bluetooth headsets as their supervisors could provide guidance and encouragement without interrupting the flow of their therapy sessions by entering the room to redirect them. Conclusions The use of video recording technology can provide opportunities for students to review: videos of prospective clients they will be treating, their treatment videos for self-assessment purposes, and for additional data collection. Bluetooth technology provides immediate communication between the clinical educator and the student. Students reported that the result of that communication can improve their self-confidence, perceived performance, and subsequent shift toward independence.


Nature ◽  
2003 ◽  
Author(s):  
Philip Ball
Keyword(s):  

Sign in / Sign up

Export Citation Format

Share Document