Title :
Connection loss reduction by thermally-diffused expanded core fiber
Author :
Haibara, Tadashi ; Nakashima, Tsuyoshi ; Matsumoto, Michito ; Hanafusa, Hiroaki
Author_Institution :
NTT Transmission Syst. Lab., Ibaraki, Japan
fDate :
4/1/1991 12:00:00 AM
Abstract :
Connection loss reduction in ten fiber connectors prepared by the thermally diffused expanded core (TEC) method has been confirmed. The mode field diameters (MFDs) of conventional single mode (SM) fibers were expanded from 9.8 to 13 mu m by thermal treatment considering the influence of loss increase due to fiber axis misalignment. An average connection loss of 0.15 dB for 4-SM-fiber connectors was realized, which was improved by 0.22 dB compared with previous value of 0.37 dB without thermal treatment. The TEC method promises to reduce the coupling loss, which is caused by lateral offset of multifiber connectors, fiber/LD modules, and fiber/waveguide device modules.<>
Keywords :
fibre optics; optical couplers; optical losses; optical workshop techniques; 0.15 dB; 9.8 to 13 micron; connection loss; fiber axis misalignment; fiber connectors; fibre coupling loss reduction; lateral offset; mode field diameters; multifiber connectors; single mode optical fibres; thermal treatment; thermally-diffused expanded core fiber; Connectors; Laboratories; Optical fiber devices; Optical fiber losses; Optical fiber networks; Optical fibers; Optical losses; Samarium; Silicon compounds; Thermal expansion;
Journal_Title :
Photonics Technology Letters, IEEE
