Optical waveguide amplifiers

Details Optical waveguide amplifiers Optical waveguide amplifiers

1995-06-01

1997-06-03

Bovernick, Rodney B.

Optical waveguides

With optical coupler

Plural

385 27, 385 37, H01S 307

Patent

active

056363010

ABSTRACT:
An optical amplifier for use in a WDM transmission system has a circulator two of whose ports constitute the input and output ports of the amplifier, and to whose third port is connected an optically amplifying fibre. Bragg grating reflectors are formed at specific intervals along this fibre chosen such that each WDM channel is reflected back to the circulator at a distance in inverse proportion to the gain per unit length experienced by that channel in the amplifier fibre, whereby all channels are amplified by the amplifier to the same extent.

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Goldstein, "Multiwavelength fiber--amplifier cascades for networks", OFC '94 Technical Digest, p. 39, 1994 (no month available).
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Kashyap, "Wavelength Flattened Saturated Erbium Amplifier Using Multiple Side-Tap Bragg Gratings", Electronics Letters, vol. 29, No. 11, May 27, 1995, pp. 1025-1026.

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