Optoelectronics Letters, Volume. 17, Issue 7, 395(2021)
A novel dual-lens-coupling system for DFB laser based on hybrid integration
A dual-lens-integrated distributed feedback (DFB) laser based on hybrid integration for single-mode transmitter optical subassembly (TOSAs) is discussed in this paper. The alignment and fixing of the lenses are simple to manipulate and highly accurate, making it possible to achieve high-efficient optical coupling to single-mode fiber (SMF) without additional high-precision tools and fixing equipment. The capability for a low coupling loss of less than 3 dB between the laser and fiber was demonstrated. The fabricated TOSA module has clear opening eyes with minor time jitters at a bit rate of 25 Gbit/s. This hybrid integration is a low fabrication cost, compact, and low insertion loss method to manufacture TOSA for a 200 or 400 GbE optical transceiver in a high-speed optical network.
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WEI Juan, SUN Yu, XUE Haiyun, HE Huimin, SUN Siwei, LIU Fengman, CAO Liqiang. A novel dual-lens-coupling system for DFB laser based on hybrid integration[J]. Optoelectronics Letters, 2021, 17(7): 395
Received: Sep. 13, 2020
Accepted: Oct. 14, 2020
Published Online: Sep. 2, 2021
The Author Email: Yu SUN (sunyu@ime.ac.cn)