Single mode optical fiber device including a short lens optical

Details Single mode optical fiber device including a short lens optical Single mode optical fiber device including a short lens optical

1992-01-23

1993-10-26

Lee, John D.

Optical waveguides

With disengagable mechanical connector

Optical fiber/optical fiber cable termination structure

385140, 385 60, G02B 636

Patent

active

052573354

ABSTRACT:
An optical terminal structure includes a single mode optical fiber having a short length, and a cylindrical member in which the single mode optical fiber is fixed. The cylindrical member has the co-axis as that of a core of the single mode optical fiber. Each of both facets of the cylindrical member is polished to have a mirror surface. The core and a clad of the single mode optical fiber have refractive indexes so that the normalized frequency in operation state of the single mode optical fiber becomes at most 2.405 as a value converted at a wavelength in use of 1.28 .mu.m. The wavelength in use is preferably in the range of 1.29 to 1.33 .mu.m.

REFERENCES:
patent: 4205901 (1980-06-01), Ramsay et al.
patent: 4669820 (1987-06-01), Ten Berge
patent: 4893889 (1990-01-01), Iwakiri et al.
patent: 5066094 (1991-11-01), Takahashi
patent: 5082345 (1992-01-01), Cammons et al.
"Modal Noise in Single-Mode Fibers Operated Slightly Above Cutoff", Electronic Letters Jul. 8, 1981 vol. 17 No. 14 pp. 499-500.

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