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Journal Article
10 Gbps Transmission of Electroabsorption Modulators Integrated with a 4-channel Distributed Bragg Reflector Laser Array
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- Authors
- Sang-Wan Ryu, Jae-Sik Sim, Yong-Hwan Kwan, Sung-Bock Kim, Yong-Soon Baek
- Issue Date
- 2008-05
- Citation
- Semiconductor Science and Technology, v.23, no.5, pp.1-4
- ISSN
- 0268-1242
- Publisher
- Institute of Physics (IOP)
- Language
- English
- Type
- Journal Article
- Project Code
- 08MB3400, Development of optical component technologies for advanced FTTH, Dae Kon Oh
- Abstract
- 10 Gbps data transmission was demonstrated with electroabsorption modulators integrated with a 4-channel wavelength division multiplexing transmitter composed of distributed Bragg reflector (DBR) lasers. A selective area growth technique was employed for the control of bandgap energy in the gain, modulator and passive sections. Then the laser and modulator stripes were fabricated by a buried heterostructure process. The DBR lasers showed uniform threshold currents between 5 and 10 mA, while the slope efficiency was around 0.11 W A-1. By controlling the DBR currents, a 4-channel transmitter was achieved for the channel spacing of 100 GHz (0.8 nm). The electroabsorption modulator showed clear eye openings under 10 Gbps non-return-to-zero modulation. It allowed 10 Gbps error-free operation over a 25 km long single-mode fiber. © 2008 IOP Publishing Ltd.
- KSP Keywords
- Band-gap energy, Channel spacing, Data transmission, Distributed Bragg reflector (DBR) laser, Distributed Bragg reflector laser, Laser array, Selective area growth, Single-mode fiber(SMF), Slope efficiency, Wavelength Division Multiplexing(WDM), buried heterostructure