1. Compact packaging for multi-wavelength DML TOSA.
- Author
-
Wang, Jiasheng, Liu, Yu, Chen, Xiangfei, Liu, Jianguo, and Zhu, Ninghua
- Subjects
WAVELENGTHS ,ELECTRONIC feedback ,OPTICAL transmitters ,ELECTRIC interference ,LASER arrays ,SUPERCOMPUTERS - 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. [ABSTRACT FROM AUTHOR]
- Published
- 2014
- Full Text
- View/download PDF