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Compact packaging for multi-wavelength DML TOSA

  • Letter
  • Optoelectronics & Laser
  • Published:
Chinese Science Bulletin

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 × 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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Acknowledgments

This work was supported by the National High-Tech Research & Development Program of China (2011AA010303, 2013AA014201, and 2011AA010305) and the National Natural Science Foundation of China (61177080).

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Authors and Affiliations

  1. Institute of Semiconductors, Chinese Academy of Sciences, Beijing, 100083, China

    Jiasheng Wang, Yu Liu, Jianguo Liu & Ninghua Zhu

  2. National Laboratory of Microstructures, Nanjing University, Nanjing, 210093, China

    Xiangfei Chen

Authors
  1. Jiasheng Wang
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  2. Yu Liu
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  3. Xiangfei Chen
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  4. Jianguo Liu
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  5. Ninghua Zhu
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Corresponding author

Correspondence to Ninghua Zhu.

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Cite this article

Wang, J., Liu, Y., Chen, X. et al. Compact packaging for multi-wavelength DML TOSA. Chin. Sci. Bull. 59, 2387–2390 (2014). https://doi.org/10.1007/s11434-014-0373-8

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  • DOI: https://doi.org/10.1007/s11434-014-0373-8

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