Optical frequency spacing tunable four-channel integrated 1.55 mu m multielectrode distributed-feedback laser array |
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| Authors: | H Yasaka J Nakano M Fukuda Y Nakano Y Itaya |
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| Affiliation: | Opto-Electron. Lab., NTT, Kanagawa, Japan; |
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| Abstract: | A four-channel integrated 1.55- mu m multielectrode distributed-feedback (DFB) laser array was fabricated using the metallorganic vapor-phase deposition/liquid-phase epitaxy (MOVPE/LPE) hybrid method. Simultaneous single-longitudinal mode operation was achieved in each multielectrode DFB laser on a single chip. Utilizing the frequency tunability of multielectrode DFB lasers, optical frequency spacings were controlled and set to within a few gigahertz. The drift of frequency spacings due to temperature fluctuation was in the range of +or-50 MHz for temperature control of +or-0.1 degrees .<> |
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