Title :
Novel fiber coupler tapering process using a microheater
Author :
Takeuchi, Y. ; Noda, J.
Author_Institution :
NTT Opto-Electron. Lab., Ibaraki, Japan
fDate :
5/1/1992 12:00:00 AM
Abstract :
A novel fiber tapering process using a microheater is proposed and fiber couplers have been fabricated by means of this method. This heater is excellent for producing a 12.4-mm-wide, stable heat region controlled by applied current. Wavelength-flattened couplers with very low losses are fabricated. Taper slope angles are far more gradual than that obtained by stationary burner flames, and the length of the fiber region deformed by tapering is 11.8 mm. The average excess loss at 1.31 and 1.55 mu m is 0.13 dB with a maximum value of 0.3 dB.<>
Keywords :
heating; optical couplers; optical fibres; optical losses; optical workshop techniques; 0.13 dB; 0.3 dB; 1.31 micron; 1.55 micron; 11.8 mm; applied current; average excess loss; coupler fabrication; fiber coupler tapering process; fiber couplers; microheater; stable heat region; tapering; very low losses; wavelength-flattened couplers; Current; Fabrication; Fires; Kelvin; Optical control; Optical fiber couplers; Resistance heating; Shape; Temperature control; Temperature distribution;
Journal_Title :
Photonics Technology Letters, IEEE
