Title :
Etch-eroded fiber coupler for whispering-gallery-mode excitation in high-Q silica microspheres
Author :
Laine, J.-P. ; Little, B.E. ; Haus, H.A.
Author_Institution :
Res. Lab. of Electron., MIT, Cambridge, MA, USA
Abstract :
A simple and inexpensive technique for the excitation of whispering-gallery-modes in silica microspheres is presented. In this technique, the cladding of a single-mode optical fiber is etched chemically in order to expose the fiber´s evanescent field. The cladding can be eroded partially, or removed completely with continued etching into the core. The etch-erosion procedure requires a minimum of specialized equipment and preparation time.
Keywords :
etching; micro-optics; micromechanical resonators; optical fibre couplers; optical fibre fabrication; optical resonators; SiO/sub 2/; etch-eroded fiber coupler; etch-erosion procedure; etched chemically; fiber evanescent field; high-Q silica microspheres; preparation time; single-mode optical fiber cladding etching; whispering-gallery-mode excitation; Chemicals; Etching; Hafnium; Optical fiber couplers; Optical fiber devices; Optical fibers; Optical frequency conversion; Optical resonators; Optical waveguides; Silicon compounds;
Journal_Title :
Photonics Technology Letters, IEEE
