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We describe a hybrid integration module of a 10 × 10-Gb/s distributed feedback laser diode array (DFB-LDA) and a planar light-wave circuit-based arrayed waveguide grating (AWG). For fabrication of the DFB-LDA, we adopted a selective area growth technique to tailor the channel gain properly, and E-beam lithography to accurately control the channel lasing wavelength and grating phase. For implementation of the AWG, we introduced a 2%-Δ structure to reduce the coupling loss between the AWG and DFB-LDA, and designed the tapered and parabolic waveguides at the junctions of the free propagation regions to widen the spectral passband width (i.e., a -1-dB spectral width of 3 nm). The developed module shows a side-mode suppression ratio of >45 dB, a clear eye opening with a dynamic extinction ratio of >4.4 dB at 10 Gb/s, and a power penalty of <;1.5 dB after a 2-km transmission for all channels.

ieee photonics technology letters

A <inline-formula> <tex-math notation="LaTeX">$10 \times 10$ </tex-math></inline-formula>-Gb/s DFB-LD Array Integrated With PLC-Based AWG for 100-Gb/s Transmission

A $10 \times 10$ -Gb/s DFB-LD Array Integrated With PLC-Based AWG for 100-Gb/s Transmission