Optical fiber spatial mode converter using periodic core deforma

Details Optical fiber spatial mode converter using periodic core deforma Optical fiber spatial mode converter using periodic core deforma

1994-06-08

1995-05-02

Bovernick, Rodney B.

Glass manufacturing

Processes of manufacturing fibers, filaments, or preforms

Process of manufacturing optical fibers, waveguides, or...

65403, 65433, 65385, 385 28, 385 30, C03B 2320

Patent

active

054115663

ABSTRACT:
Efficient conversion between the LP.sub.01 and the LP.sub.11 modes in a two-mode optical fiber is realized in a fiber grating fabricated by forming a series of longitudinally-spaced cuts in the fiber cladding, and then annealing the fiber in the region of the cuts. The latter step uses the surface tension of the molten glass to transform the corrugation on the cladding into a sinusoidal deformation of the fiber core.

REFERENCES:
patent: 3969016 (1976-07-01), Kaiser et al.
patent: 4710605 (1987-12-01), Presby
patent: 4846547 (1989-07-01), Falco et al.
patent: 5058979 (1991-10-01), Yamauchi et al.
patent: 5261016 (1993-11-01), Poole
Fiber-Optic Modal Coupler Using Periodic Microbending by J. N. Blake et al., Optic Letters, Mar. 1986, vol. 11, pp. 177-179.
Intermodal Coupler Using Permanently Photoinduced Grating in Two-Mode Optical Fiber by, H. G. Park et al., Electronic Letters, Jun. 8, 1989, vol. 25, pp. 797-799.

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