New integrated buried laser-ridge modulator with identical active layer |
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Authors: | M Le Pallec C Kazmierski E Vergnol S Perrin JG Provost P Doussiere G Glastre D Carpentier S Fabre |
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Affiliation: | Alcatel CIT-Optoplus, Marcoussis, France; |
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Abstract: | Integrated laser modulators are attractive devices for wavelength-division-multiplexing optical systems due to their compactness, high output power, and low cost. Their fabrication simplicity is a way to decrease further the transmitter cost and address new opening markets of short range and metropolitan networks. We report a new integration scheme electroabsorption-modulator distributed feedback (DFB) laser based on well-established industrial solutions for discrete buried ridge (BRS) DFB lasers and discrete shallow ridge modulators. Processing simplification with an identical active layer has been possible due to a good behavior of strongly positively detuned BRS lasers. The integrated devices demonstrated 30-dB extinction ratio with 10-GHz bandwidth and P/sub out/=10 dBm for emission in 1.55-/spl mu/m range. |
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