【摘 要】
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A monolithically integrated four-channel λ/4 phase shift distributed feedback (DFB) laser array with a 4 × 1 multimode interference combiner is designed and f
【机 构】
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Wuhan National Laboratory for Optoelectronics, School of Optical and Electronic Information, Huazhon
论文部分内容阅读
A monolithically integrated four-channel λ/4 phase shift distributed feedback (DFB) laser array with a 4 × 1 multimode interference combiner is designed and fabricated using nanoimprint lithography.The threshold currents of the lasers are less than 10mA,which are as good as a discrete DFB laser.Moreover,the side-mode suppression ratio is also better than 50dB.The channel space is about 200GHz for dense wavelength division multiplexing applications in an 1.55 μm system.
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