Design of amplifier- and modulator-integrated laser diode for 10-Gb/s 80-km transmission

Author

Kim, In ; Kang, Byung-Kwon ; Bae, Yu-Dong ; Park, Byeonghoon ; Lee, Sang-Moon ; Kim, Young Hyun ; Jang, Dong-Hoon

Author_Institution

Telecommun. R&D Center, Samsung Electron. Co., Suwon, South Korea

Volume

11

Issue

2

fYear

2005

Firstpage

323

Lastpage

328

Abstract

We present the amplifier- and modulator-integrated laser diode designed for 10-Gb/s transmission over 80-km distance. An antireflection window structure is implemented at the tilt facet of the amplifier to reduce optical feedback by 40 dB. A monitor photodiode is monolithically integrated in the antireflection window region for accurate power regulation. To better control the amplifier input power and to reduce the feedback of amplified spontaneous emission, an attenuation inner-window is incorporated by removing a section of the waveguide. The reproducibility of the chip fabrication process is tested to confirm the design margin. Through amplifying the modulated signals and reducing modulator chirp by amplifier saturation, high-power optical transmission is demonstrated.

Keywords

antireflection coatings; chirp modulation; electro-optical modulation; integrated optics; integrated optoelectronics; monolithic integrated circuits; optical communication equipment; optical design techniques; optical feedback; optical fibre communication; optical saturation; optical variables control; optical waveguides; photodiodes; semiconductor optical amplifiers; superradiance; 10 Gbit/s; 10-Gb/s transmission; 80 km; amplified spontaneous emission; amplifier design; amplifier saturation; antireflection window; attenuation inner-window; chip fabrication process; high-power optical transmission; laser diode; modulated signal amplification; modulator chirp; modulator-integrated laser; monitor photodiode; monolithic integration; optical feedback; power regulation; Chirp modulation; Diode lasers; Monitoring; Optical amplifiers; Optical attenuators; Optical design; Optical feedback; Optical waveguides; Photodiodes; Semiconductor optical amplifiers; Attenuators; distributed feedback lasers; electroabsorption; monolithic integrated circuits; photodetectors; semiconductor optical amplifiers;

fLanguage

English

Journal_Title

Selected Topics in Quantum Electronics, IEEE Journal of

Publisher

ieee

ISSN

1077-260X

Type

jour

DOI

10.1109/JSTQE.2005.845615

Filename

1425467