Spot-size converted 1.3 µm laser with butt-jointedselectively grown vertically tapered waveguide
- 22 June 1995
- journal article
- Published by Institution of Engineering and Technology (IET) in Electronics Letters
- Vol. 31 (13) , 1069-1070
- https://doi.org/10.1049/el:19950757
Abstract
A 1.3 µm laser has been developed with a butt-jointed selectively grown spot-size converter (SSC). The SSC, vertically tapered waveguide and strained multiquantum well (MQW) active region are independently optimised. The laser was buried with semi-insulating InP to reduce optical loss in the SSC. A threshold current of 7 mA and an output power of > 20 mW were obtained. Minimum coupling loss to a flat-end fibre of 1.06 dB was achieved. Long-term stability was also confirmed.Keywords
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