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22 dB gain semiconductor optical amplifier module using high numerical aperture aspheric lenses |
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| Authors: | Toyonaka T. Tsuji S. |
| Affiliation: | Central Res. Labs., Hitachi Ltd., Tokyo, Japan; |
| Abstract: | A polarisation-insensitive semiconductor optical amplifier (SOA) module with a net gain of 22 dB is demonstrated. High numerical aperture, low aberration aspheric glass moulded lenses are efficiently used for optical coupling between the SOA chip and singlemode fibres.< |
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