Corrugation-pitch-modulated phase-shifted DFB laser |
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| Authors: | Okai M Chinone N Taira H Harada T |
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| Affiliation: | Hitachi Ltd., Tokyo; |
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| Abstract: | A corrugation-pitch-modulated phase-shifted distributed feedback (DFB) laser is proposed to reduce the spatial-hole-burning effect along the laser cavity. The structure of the proposed corrugation-pitch-modulated phase-shifted DFB laser is illustrated. A reduction in this effect is confirmed from its spectral behavior as a function of driving current. Consequently, stable single-longitudinal-mode operation up to high-output powers is obtained |
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