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High-Optical-Power Operation of the Electroabsorption-Modulated Laser and Subsequent Changes in Eye Diagram and 3-dB Bandwidth
- Authors
- Yang, Soohan; Kim, Sun-Young; Shin, Dong-Soo
- Issue Date
- Nov-2011
- Publisher
- IOP Publishing Ltd
- Citation
- Japanese Journal of Applied Physics, v.50, no.11, pp.1 - 3
- Indexed
- SCIE
SCOPUS
- Journal Title
- Japanese Journal of Applied Physics
- Volume
- 50
- Number
- 11
- Start Page
- 1
- End Page
- 3
- ISSN
- 0021-4922
- Abstract
- We present the 10-Gbps eye diagrams of the multiple-quantum-well electroabsorption-modulated laser at high optical powers and analyze the changes in the eye diagrams. Changes in the differential photocurrent resistance and the capacitance of the electroabsorption modulator (EAM) are considered in the analysis. We show that contrary to the previous report of the bandwidth increase with the optical power, the bandwidth of the EAM remains constant with the 50-Omega parallel matching resistor. Since the 3-dB bandwidth is one of the most important design parameters for the high-speed EAM, understanding its behavior under high optical power should be very useful. (C) 2011 The Japan Society of Applied Physics
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Related Researcher
- Shin, Dong Soo
- COLLEGE OF SCIENCE AND CONVERGENCE TECHNOLOGY (DEPARTMENT OF PHOTONICS AND NANOELECTRONICS)