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Monolithically Integrated Multiwavelength Grating Cavity Laser
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- Authors
- Oh Kee Kwon, Kang Ho Kim, Eun Deok Sim, Jong Hoi Kim, Kwang Ryong Oh
- Issue Date
- 2005-09
- Citation
- IEEE Photonics Technology Letters, v.17, no.9, pp.1788-1790
- ISSN
- 1041-1135
- Publisher
- IEEE
- Language
- English
- Type
- Journal Article
- Abstract
- A multiwavelength grating cavity laser is reported using a novel design for a multichannel light source based on an etched diffraction grating. Following the design, the compact eight-channel device capable of fine-tuning has been realized by monolithically integrating semiconductor optical amplifiers, various passive waveguides, and deeply etched grating, providing high butt-coupling efficiency, and low waveguide losses. As a result, the sidemode suppression ratio in excess of 45 dB over all channels was achieved. © 2005 IEEE.