Journal of the Institute of Electronics Engineers of Korea SD (대한전자공학회논문지SD)

The Institute of Electronics and Information Engineers (대한전자공학회)
권호 표지

A Study on the Optical Bistable Characteristic of a Multi-Section DFB-LD

다전극 DFB-LD의 광 쌍안정 특성에 관한 연구

  • Kim, Geun-Cheol (Dept. of Electronic Communication Engineering Kwangwoon University) ;
  • Jeong, Yeong-Cheol (Dept. of Electronic Communication Engineering Kwangwoon University)
  • 김근철 (광운대학교 전자통신공학과) ;
  • 정영철 (광운대학교 전자통신공학과)
  • Published : 2002.08.01
Download PDF
⟨ Previous Next ⟩

Abstract

A multi-section DFB-LD shows optical bistability subject to externally injected light signal, then it has potential applications such as wavelength conversion and optical logic gates. In this paper, we have studied the optical bistability in multi-section DFB-LD using split-step time-domain model. It is confirmed that the multi-section DFB-LD, which is excited inhomogeneously, shows bistability. The optical bistable characteristics are investigated when input light is injected into a absorptive region. Simulation results show that multi-section DFB-LD works as a flip-flop depending on the set-reset optical pulse which has a few ns in switching time and a few pj in switching energy, so that it can act as a optical logic device. Besides, if we change the carrier lifetime and the differential gain coefficient, it is expected that the response time of optical output signal can be reduced.

다전극 DFB-LD는 외부에서 주입되는 광의 파워에 따라서 발진하는 광출력이 쌍안정성을 보임에 따라, 이를 파장 변환에 활용하거나, 광논리 소자로 활용할 수 있는 가능성이 있다. 본 논문에서는 연산자 분리 시영역 모델을 이용하여 다전극 DFB-LD에서의 광 쌍안정 특성에 대하여 연구하였다. 다전극 DFB-LD에 불균등하게 전류를 인가하여 쌍안정 현상이 발생함을 확인하고, 흡수 영역으로 입력광을 입사하였을 때 발생하는 출력광 파워의 쌍안정 현상도 확인하였다. 그리고 수 ns의 스위칭 시간과 수 pj의 스위칭 에너지를 가진 set 또는 reset 광 펄스의 인가에 의하여 flip-flop 특성을 보임에 따라 광 메모리 소자로서의 동작도 확인하였다. 또한 캐리어 생존시간과 이득 곡선 기울기 등의 조절로서 LD 광 출력의 반응 시간을 줄일 수 있는 가능성을 확인하였다.

Keywords

References

  1. H. Kawaguchi, 'Progress in optical functional devices using two-section laser diode/amplifiers,' IEEE Proceedings-J, Vol. 140, No. 1, pp. 3-15, 1993
  2. M. Jinno, T. Matsumoto, 'Nonlinear operations of 1550 nm multieletrode DFB-LD and their applications for optical signal processing,' IEEE JLT, Vol. 10, No. 4, pp. 448-475, 1992 https://doi.org/10.1109/50.134198
  3. S. Pegg, M. Adams, and K.Poguntke, 'Absorptive switching and spectral characteristics of the side-injection light-controlled bistable laser diode,' IEEE J. Quanturm Elcetron, Vol. 36, No. 1, pp. 94-99, 2000 https://doi.org/10.1109/3.817644
  4. G. Lasher, 'Analysis of proposed bistable injection laser,' Solid State Electron., Vol. 7, pp. 707-716, 1964 https://doi.org/10.1016/0038-1101(64)90027-9
  5. H. Tsuda, K. Nonaka, K. Hirabayashi, H. Uenohara, H. Iwarmura, T. Kurokawa, 'Wide range wavelength conversion experiments using a side-injection light-controlled bistable laser diode,' Appl. Phys. Lett., Vol. 63, No. 23, pp. 3116-3118, 1993 https://doi.org/10.1063/1.110221
  6. K. Nonaka, Y. Noguchi, H. Tsuda, T. Kurodawa, 'Digital signal regeneration with side-injection-light-controlled bistable laser diode as a wavelength converter,' IEEE Photon Technol Lett., Vol. 7, pp. 29-31, Jan. 1995 https://doi.org/10.1109/68.363386
  7. A. Levi, R. Nottenburg, R. Nordin, T. Tanbunek, R. Logan, 'Multielectrode quantum well laser for digital switching,' Appl. Phys. Lett., Vol. 56, No. 12, pp. 1095-1097, 1990 https://doi.org/10.1063/1.102578
  8. K. Inoue, 'Technique to compensate for waveform distrotion in a gain-saturated semiconductor optical amplifier using semiconductor saturable absorber,' Electron. Lett., Vol. 34, No. 4, pp. 376-378, 1998 https://doi.org/10.1049/el:19980297
  9. K. Nonaka, H. Takara, K. Uchiyama, A. Tacada, 'Bit-rate flexible all-optical RZ/NRZ transformation with saturable absorption laser diode,' in CLEO '98 CMA6, pp. 5-6 https://doi.org/10.1109/CLEO.1998.675785
  10. K. Nonaka, F. Kobayashi, K. Kishi, T. Tadokoro, Y. Itoh, C. Amano, T. Kurokawa, 'Direct time-domain optical demultiplexing of 10-Gb/s NRZ signals using sideinjection light-controlled bistable laser diode,' IEEE Photon. Technol. Lett., Vol. 10, pp. 1484-1486, Oct. 1998 https://doi.org/10.1109/68.720302
  11. T. Odagawa, S. Yamakoshi, 'Optical setreset operations of bistable laser diode with single-wavelength light,' Electron. Lett., Vol. 25, No. 21, pp. 1428-1429, 1989 https://doi.org/10.1049/el:19890953
  12. H. Uenohara, Y. Kawamura, H. Iwamura, K. Nonaka, H. Tsuda, T. Kurokawa, 'Set and reset operation dependence on input light intensity of a side-light-injection MQW bistable laser,' Electron. Lett., Vol. 29, No. 18, pp. 1609-1611, 1993 https://doi.org/10.1049/el:19931072
  13. K. Nakatsuhara, T. Mizumoto, R. Munakata, Y. Kigure, Y. Naito, 'Demonstration of all-optical set-reset operation in a GaInAsP waveguide bistable device,' in Proc. LEOS '97 10th Annual Meeting., Vol. 1, pp. 246-247, 1997 https://doi.org/10.1109/LEOS.1997.630608
  14. M. Hill, H. de Waardt, G. Khoe, H. Dorren, 'All-optical flip-flop based on coupled laser diodes,' IEEE J. Quantum Electron., Vol. 37, No. 3, pp. 405-413, 2001 https://doi.org/10.1109/3.910450
  15. H. Kawaguchi, 'Semiconductor Photonic functional devices,' IEEE Circutis and Devices Magazine, Vol. 7, pp. 26-31, May. 1991 https://doi.org/10.1109/101.79793
  16. B. Kim and Y. Chung, 'An efficient split-step time-domain dynamic modeling of DFB/DBR laser diodes,' IEEE J. of Quantum Electron., Vol. 36, No. 7, pp. 787-794, 2000 https://doi.org/10.1109/3.848349