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Single mode multiple-element laser array with grating filter

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4 Author(s)
Dong, J. ; Dept. of Phys. Electron., Tokyo Inst. of Technol., Japan ; Arai, S. ; Ikeda, T. ; Komori, K.

A 1.5-μm wavelength grating filter laser array (GFA) structure which consists of a positive-index-guided multiple-element array region and a laterally unguided grating filter region is proposed and theoretically analyzed for realizing in-phase supermode and simultaneous single-longitudinal-mode operation. A five-element GaInAsP/InP GFA with a lasing wavelength of ~1.5 μm was fabricated and its single-longitudinal-mode/in-phase supermode operation was demonstrated up to four times the threshold current

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Quantum Electronics, IEEE Journal of  (Volume:29 ,  Issue: 7 )