A Wavelength Tunable Multi-Section PIC as an Upstream Transmitter for TWDM Networks
نویسندگان
چکیده
In this paper, we demonstrate a novel multi-section directly modulated laser transmitter for upstream operation in the application of time wavelength division multiplexing (TWDM) architecture. The photonic integrated circuit (PIC) is fabricated using regrowth-free process that favors simplified and fast manufacturing. PIC based on master-slave configuration, with an addition variable optical attenuator (VOA) section between them, semiconductor amplifier (SOA) at output. VOA enables control injection from master to slave improving transmission performance. SOA output used boost or turn off power transmitter, thereby enabling burst mode operation. Experimental results show can be tuned four channels 100 GHz frequency grid. We also each channel achieves error-free performance (bit error ratio < 10e -9 ), when 10 Gbps signal transmitted over 25 km 50 fiber. SOA-based disable feature delivers more than 60 dB attenuation.
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ژورنال
عنوان ژورنال: Journal of Lightwave Technology
سال: 2023
ISSN: ['0733-8724', '1558-2213']
DOI: https://doi.org/10.1109/jlt.2023.3244363