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Chirp parameter of electroabsorption modulators with InGaAsP intrastep quantum wells
- Authors
- Shin, Dong Soo; Jeong, Hee jun
- Issue Date
- Apr-2005
- Publisher
- IOP Publishing Ltd
- Keywords
- electroabsorption; quantum well; step barrier; modulator; chirp
- Citation
- Japanese Journal of Applied Physics, v.44, no.16-19, pp.L590 - L592
- Indexed
- SCIE
SCOPUS
- Journal Title
- Japanese Journal of Applied Physics
- Volume
- 44
- Number
- 16-19
- Start Page
- L590
- End Page
- L592
- ISSN
- 0021-4922
- Abstract
- The chirp parameter of electroabsorption modulators (EAMs) with intrastep quantum wells (IQWs) based oil the InGaAsP material system is investigated theoretically. The chirp parameter of the IQW EAM, calculated by using the Krarners-Kronig relation, shows a discontinuity at a low voltage due to the blue shift in transition energy. Once the red shift is initiated, the chirp of the IQW EAM is similar to that of the conventional quantum-well (QW) EAM. Comparison with the conventional QW EAM shows that the IQW EAM could still be operated under high optical power without the compromise in chirp and absorption loss.
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Related Researcher
- Shin, Dong Soo
- COLLEGE OF SCIENCE AND CONVERGENCE TECHNOLOGY (DEPARTMENT OF PHOTONICS AND NANOELECTRONICS)