Optical transmission apparatus
AssigneeMitsubishi Electric Corporation
InventorsShusaku Hayashi, Satoshi Nishikawa, Koichi Akiyama
Life of this patent
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Abstract
An optical transmission apparatus includes a first multilevel optical phase modulator and a first semiconductor optical amplifier. The first semiconductor optical amplifier includes a first active region having a first multiple quantum well structure. Assuming that a first number of layers of a plurality of first well layers is defined as n1 and a first length of the first active region is defined as L1 (μm): (a) n1=5 and 400≤L1≤563; (b) n1=6 and 336≤L1≤470; (c) n1=7 and 280≤L1≤432; (d) n1=8 and 252≤L1≤397; (e) n1=9 and 224≤L1≤351; or (f) n1=10 and 200≤L1≤297.
Claims11
An optical transmission apparatus comprising:
- a first multilevel optical phase modulator;
- and
- a first semiconductor optical amplifier to amplify first multilevel optical signal lights output from the first multilevel optical phase modulator, wherein
- the first semiconductor optical amplifier includes a first active region, and the first active region has a first multiple quantum well structure,
- wherein a first number of all well layers of the first multiple quantum well structure is defined as n1 and a first length of the first active region is defined as L1 (μm),
- n1=5 and 400≤L1≤563,
- n1=6 and 336≤L1≤470,
- n1=7 and 280≤L1≤432,
- n1=8 and 252≤L1≤397,
- n1=9 and 224≤L1≤351, or
- n1=10 and 200≤L1≤297.
Dependencies are inferred from the claim text.