Compact packaging for multi-wavelength DML TOSA |
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| Authors: | Jiasheng Wang Yu Liu Xiangfei Chen Jianguo Liu Ninghua Zhu |
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| Affiliation: | 1. Institute of Semiconductors, Chinese Academy of Sciences, Beijing, 100083, China
2. National Laboratory of Microstructures, Nanjing University, Nanjing, 210093, China
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| Abstract: | A compact multi-wavelength hybrid-integrated directly-modulated distributed-feedback laser(DML)transmitter optical sub-assembly(TOSA)has been achieved in our laboratory.The 8-channel distributed feedback(DFB)lasers are monolithically integrated based on the reconstruction-equivalent-chirp(REC)technology.With the high-density and high-speed packaging technique,the laser array and a multi-mode interference(MMI)multiplexer are assembled in the TOSA.The channel spacing of the TOSA is 200 GHz between adjacent lasers.It meets the 8 9 12.5 Gb/s operation demand and gives rather low channel crosstalk of less than-25 dB.This compact TOSA is of effective cost and shows good stability for mass production,which is expected to improve the performance of devices in access networks,data centers and supercomputing. |
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| Keywords: | Hybrid-integrated Multi-wavelength Directly-modulated laser array Photonic integrated circuits TOSA |
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