Characterization of a tunable three-section slotted Fabry-Perot laser for advanced modulation format optical transmission |
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Authors: | K Shi F Smyth B Roycroft FH Peters |
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Institution: | a Research Institute of Networks and Communications Engineering (RINCE), Dublin City University, Glasnevin, Dublin 9, Irelandb Tyndall National Institute, Lee Malting, Cork, Ireland |
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Abstract: | In this paper we report on the characterization of a narrow linewidth three-section tunable slotted Fabry-Perot laser. The SMSR of the 25 available 100-GHz ITU channels is above 30 dB, whereas their average linewidth is 538 kHz with a maximum below 800 kHz. The RIN spectra of six different channels are also measured and a maximum average RIN of −135 dB/Hz is obtained. The linewidth effect of the laser in a 1.25 Gb/s DPSK transmission system is investigated by comparing the performance between the slotted Fabry-Perot laser and a commercial SG-DBR laser respectively. Error free transmission of the slotted Fabry-Perot laser shows the benefit of the narrow linewidth of the device for systems employing advanced modulation formats. |
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Keywords: | Advanced modulation formats Linewidth Lineshape Slotted Fabry-Perot laser |
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