US 9,793,998 B2 · Optical transmit system

Abstract

An optical transmit system, including a direct modulator configured to generate an optical signal, an optical amplifier coupled to the direct modulator configured to amplify the optical signal output by the direct modulator, and a stimulated Brillouin scattering component coupled to the optical amplifier configured to limit optical power of the optical signal output by the optical amplifier, where a stimulated Brillouin scattering threshold of the stimulated Brillouin scattering component is equal to minimum optical power of a part, which needs to be limited, of the optical signal output by the optical amplifier, and the stimulated Brillouin scattering component reflects, using a stimulated Brillouin scattering frequency difference, a part, which has optical power higher than the minimum optical power, of the optical signal output by the optical amplifier in order to limit outputting of this part of the optical signal.

Claims20

Dependent claims

An optical transmit system, comprising:

a direct modulator configured to generate an optical signal;
an optical amplifier coupled to the direct modulator and configured to amplify the optical signal output by the direct modulator;
and
a stimulated Brillouin scattering component coupled to the optical amplifier and configured to:
limit optical power of the optical signal output by the optical amplifier, wherein a stimulated Brillouin scattering threshold of the stimulated Brillouin scattering component is equal to a minimum optical power of a part, which needs to be limited, of the optical signal output by the optical amplifier;
and
reflect, using a stimulated Brillouin scattering frequency difference, a part, which has optical power higher than the minimum optical power, of the optical signal output by the optical amplifier in order to limit outputting of this part of the optical signal.

4 more elements

An optical transmit system, comprising:

a direct modulator configured to generate an optical signal;
a semiconductor optical amplifier coupled to the direct modulator configured to amplify the optical signal output by the direct modulator;
and
a stimulated Brillouin scattering component coupled to the semiconductor optical amplifier configured to:
limit optical power of the optical signal output by the semiconductor optical amplifier, wherein a ratio of a stimulated Brillouin scattering threshold of the stimulated Brillouin scattering component to a pulse peak baseline value of the semiconductor optical amplifier when the semiconductor optical amplifier works in a saturation region is greater than or equal to 1 and less than or equal to 115%;
and
reflect, using a stimulated Brillouin scattering frequency difference, a part, which has optical power higher than the stimulated Brillouin scattering threshold, of the optical signal output by the semiconductor optical amplifier in order to limit outputting of this part of the optical signal.

4 more elements

Dependencies are inferred from the claim text.

Optical transmit system

Life of this patent

Optical transmit system

Life of this patent

Abstract

Claims20