Title :
Low cost 16-channel DWDM TOSA
Author :
Yajuan Qian ; Jun Lu ; Jia Luan ; Ping Cheng ; Baoli Cao ; Yuechun Shi ; Xiangfei Chen
Author_Institution :
Nat. Lab. of Solid State Microstructures & Collaborative Innovation Center of Adv. Microstructure & Coll. of Eng. & Appl. Sci., Nanjing Univ., Nanjing, China
Abstract :
A low-cost multi-wavelength laser array (MLA) transmitter optical sub-assembly (TOSA) was demonstrated for the first time. The distributed feedback (DFB) grating of the MLA is fabricated with reconstruction-equivalent-chirp (REC) technique. A special hybrid-integrated method with planar lightwave circuit (PLC) is applied to couple 16 laser outputs of the MLA into one single-mode fiber. The TOSA shows very good uniformity in wavelength spacing. The side mode suppression ratios (SMSR) of all channels are over 40 dB. Lasers of this TOSA are directly modulated at 2.5 GHz, and the eye-diagram is presented.
Keywords :
laser arrays; optical transmitters; DFB; PLC; REC technique; SMSR; TOSA; channel DWDM TOSA; distributed feedback; hybrid integrated method; multiwavelength laser array; planar lightwave circuit; reconstruction equivalent chirp; side mode suppression ratios; transmitter optical subassembly; wavelength spacing; Arrays; Distributed Bragg reflectors; Light sources; Optical fiber communication; Packaging; Power generation; Wavelength division multiplexing; 16-channel; DWDM; PLC; REC; TOSA;
Conference_Titel :
Optical Communications and Networks (ICOCN), 2015 14th International Conference on
Conference_Location :
Nanjing
DOI :
10.1109/ICOCN.2015.7203693
