Optical fiber coupler type wavelength measuring apparatus

Details Optical fiber coupler type wavelength measuring apparatus Optical fiber coupler type wavelength measuring apparatus

1997-04-24

1998-10-13

Font, Frank G.

Optics: measuring and testing

With plural diverse test or art

G01N 2100

Patent

active

058220496

ABSTRACT:
A fiber optic wavelength measuring apparatus using the wavelength dependent nature of a fused fiber coupler to measure the wavelength of light propagating in an optical fiber. The input light is coupled, using a fused fiber coupler, of the type commonly used as wavelength division mutiplexers, into two fibers and the light in these two fibers is then measured using a pair of fiber coupled photodiodes. The ratio of the optical power of light in the two fibers corresponds to the wavelength of the input light. Hence it is possible to perform precise real-time measurement of the wavelength of light in a fiber with a compact, inexpensive, and field rugged apparatus.

REFERENCES:
patent: 5260566 (1993-11-01), Reed
patent: 5313065 (1994-05-01), Reed
patent: 5323409 (1994-06-01), Laskoskie
patent: 5412746 (1995-05-01), Rossberg et al.
patent: 5416578 (1995-05-01), Ohiki
patent: 5682453 (1997-10-01), Daniel et al.
T. Woschnik, and W. Behmenburg, "A Wavemeter for Controlled Funing of Near I.R. Diode Lasers," Spectrochimica Acta., vol. 44B, pp. 949-955, 1989.
J.C. Braasch, W. Holzapfel, and S. Holzapfel, and S. Neuschaefer-Rube "Wavelength Determination of Semiconductor Lasers: Precise but Inexpensive," Optical Engineering, vol. 34, pp. 1417-1420, 1995.

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