Title :
High-Frequency Characteristics of 40Gb/s Electroabsorption Modulator-Integrated DFB Lasers: Effect of Traveling-Wave Electrode and Tilted Facet
Author :
Kwon, Yong-Hwan ; Choe, Joong-Seon ; Sim, Jae-Sik ; Kim, Sung-Bock ; Yun, Hogyeong ; Choi, Kwang-Seong
Author_Institution :
Electron. & Telecommun. Res. Inst., Daejeon
Abstract :
We fabricated 40 Gb/s electroabsorption modulator-integrated DFB lasers (EMLs). Adopting traveling-wave (TW) electrode and tilted facet improved high-frequency characteristics of EMLs. The 3 dB bandwidth of E/O response for TW-EML was as large as 34 GHz, as compared with 27 GHz for lumped EML. Tilted facet formed by dry etching processes successfully reduced the optical feedback and the resonance in E/O response decreased to as small as 2.8 dB.
Keywords :
distributed feedback lasers; electro-optical modulation; electroabsorption; etching; integrated optics; laser feedback; optical fibre communication; optical transmitters; semiconductor lasers; bit rate 40 Gbit/s; dry etching processes; electroabsorption modulator-integrated DFB lasers; lumped EML; optical feedback; tilted facet; traveling-wave electrode; Chirp modulation; Distributed feedback devices; Electrodes; Etching; Indium phosphide; Laser feedback; Optical feedback; Optical modulation; Optical waveguides; Waveguide lasers; component; electroabsorption; lumped; modulator; tilted; traveling-wave;
Conference_Titel :
Microwave Conference, 2007. APMC 2007. Asia-Pacific
Conference_Location :
Bangkok
Print_ISBN :
978-1-4244-0748-4
Electronic_ISBN :
978-1-4244-0749-1
DOI :
10.1109/APMC.2007.4554714
