Browse > Article

Traveling-wave type CPW InGaAsP Photodecector at 1.55$\mu\textrm{m}$  

Yun, Yeong-Seol (중앙대학교 광전자 및 광통신 연구실)
Gang, Tae-Gu (중앙대학교 광전자 및 광통신 연구실)
Lee, Jeong-Hun (중앙대학교 광전자 및 광통신 연구실)
Ok, Seong-Hae (중앙대학교 광전자 및 광통신 연구실)
Gong, Sun-Cheol (중앙대학교 광전자 및 광통신 연구실)
Choe, Yeong-Wan (중앙대학교 광전자 및 광통신 연구실)
Publication Information
Journal of the Institute of Electronics Engineers of Korea SD / v.39, no.3, 2002 , pp. 41-48 More about this Journal
Abstract
The bandwidth limitation of traveling-wave electroabsorption modulator(TW-EAM) is determined by the transit time, the velocity-mismatch between optical-wave and microwave, the impedance-matching, the dispersion and the microwave loss. In this paper, we introduce an hovel impulse response of TW-EAM considering transit time as well as velocity-mismatch. We analyze the effect of transit-time and velocity-mismatch at the same time, using the FDTD method. We investigate the modulation bandwidth by changing the depth of the intrinsic region. We suggest that the optimum depth of the intrinsic region is 0.2${\mu}{\textrm}{m}$ when the absorption coefficient($\alpha$) is 0.2${\mu}{\textrm}{m}$-1.
Keywords
TW-EAM; Modulator; FDTD; transit-time;
Citations & Related Records
연도 인용수 순위
  • Reference
1 V.M. Heitala and G.A. Vawter, T.M. Brennan, and B.E. Hammons, 'Traveling-wave photodetectors for high-power, large bandwidth applications,' IEEE Trans. Microwave Theory Tech., Vol. 43, pp. 2291-2298, 1995   DOI   ScienceOn
2 Kirk S. Giboney, M.J.W. Rodwell, and J.E. Bowers, 'Traveling-wave photodetector theory,' IEEE Trans. Microwave Theory Tech., Vol. 45, pp. 1310-1319, 1997   DOI   ScienceOn
3 Kirk, S. Giboney, R. Nagarajan, T. Reynolds, S. Allen, R. Mirin, M. Rodwell and J.E. Bowers, 'Traveling-wave photodetectors with 172-GHz bandwidth and 76-GHz bandwidth-efficiency product,' IEEE Photon. Technol. Lett., Vol. 7, pp. 412-414, 1995   DOI   ScienceOn
4 Kirk S. Giboney, M.J.W. Rodwell, and J.E. Bowes, 'Traveling-wave photodetectors,' IEEE Photon Technol. Lett., Vol. 4, pp. 1363-1365, 1992   DOI   ScienceOn
5 Kirk S. Giboney, Mark J.W. Rodwell, John E. Bowers, 'Traveling-Wave Photodetector Design and Measurements,' IEEE Journal of Selected Topics in Quantum Electronics, Vol. 2, pp. 622-629, 1996   DOI   ScienceOn
6 S.J. Lee, S.C. Kong, J.H. Lee, and Y.W. Choi, 'Microwave characteristics of Traveling-Wave MQW Electro-absorption Modulators using the FDTD and the Fourier transform,' SPIE Proceeding, Jan., 2000   DOI
7 S.C. Kong, J.H. Lee, S.J. Lee, and Y.W. Choi, 'Analysis and design of traveling-wave photodetectors for RF optical link communication using the Finite Difference Time Domain method,' SPIE Proceeding, Jan., 2000   DOI
8 L.Y. Lin, M.C. Wu, T. Itoh, T. Vang, R.E. Muller, D.L. Sivco, and A.Y. Cho, 'High-power high-speed photodetectors Design, Analysis, and Experimental demonstration,' IEEE Trans. Microwave Theory Tech., Vol. 45, pp. 1320-1331, 1997   DOI   ScienceOn
9 Guo-Chun Liang, Yao-Wu Liu, and Kennneth, K.Mei, 'Full-Wave Analysis of Coplanar Waveguide and Slotline Using the Time-Domain Finite-Difference Method,' IEEE Trans. on Microwave Theory Tech., Vol. 37, No. 12, pp. 1949-1957, Dec. 1989   DOI   ScienceOn
10 C. Pollock, Fundamentals of optoelectronics, pp. 49-74, Richard D. IRWIN, Inc., 1995