Abstract
Optical fibre communications is now a highly sophisticated art, thanks in part to production techniques such as modified chemical vapour deposition (MCVD) (for which J B MacChesney and P B O'Connor of Bell Laboratories have recently been awarded a patent) and to testing techniques that ensure that the variation of refractive index across the core optimises signal transmission (see Bell Laboratories Record 1980 58 381 and the Technology section of this issue of Physics Bulletin p85). However, manufacturing excellence cannot prevent the broadening of optical pulses as a result of dispersion: ingenuity is required to eliminate this distortion.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
