Journal of IKEEE (전기전자학회논문지)

Institute of Korean Electrical and Electronics Engineers (한국전기전자학회)
권호 표지
DOI QR코드

DOI QR Code

Sweeping Linearization of Wavelength Swept Laser

파장 스위핑 레이저의 스위핑 선형화

  • Eom, Jinseob (Dept. of Electronics Engineering, Kangwon National University)
  • Received : 2018.08.27
  • Accepted : 2018.09.13
  • Published : 2018.09.30
Download PDF
⟨ Previous Next ⟩

Abstract

In this paper, a new method for linear sweeping of wavelength swept laser has proposed, and the linear sweeping of 1kHz speed and 80nm range has realized by using this method. The proposed requires only one-shot calibration in the early stage on a wave pattern applied to FFP-TF. This makes the problem with nonlinear swept lasers like a cumbersome and time-consuming signal processing brought on by every recalibration to be resolved.

본 논문에서는 선형으로 스위핑하는 파장 스위핑 레이저를 구현하기 위한 새로운 방식을 제안하였으며, 레이저 제작 및 실험을 통하여 1kHz 속도, 80nm 구간의 선형 스위핑 특성을 확인하였다. 제안된 방식은 FFP-TF 인가 파형에 대한 초기 한번의 선 보정만을 필요로 한다. 따라서 기존의 비선형 스위핑 레이저에서 불가피한 후 보정 과정의 번거로움 및 시간 소모문제를 해결해 준다.

Keywords

References

  1. D. Huang and J. G. Fujimoto, "Optical coherence tomography," Science, vol.254, pp. 1178-1181, 1991. DOI:10.1126/science.1957169
  2. R. Leitgeb, C. K. Hitzenberger, and A. F. Fercher, "Performance of Fourier domain vs. time domain optical coherence tomography," Opt. Express, vol.11, pp. 889-894, 2003. DOI:10.1364/OE.11.000889
  3. M. A. Choma, M. V. Sarunic, C. Yang, and J. Izatt, "Sensitivity advantage of swept source and Fourier domain optical coherence tomography," Opt. Express, vol.11, pp. 2183-2189, 2003. DOI:10.1364/OE.11.002183
  4. R. Huber, M. Wojtkowski, K. Taira, J. G. Fujimoto, and K. Hsu, "Amplified, frequency swept lasers for frequency domain reflectometry and OCT imaging : design and scaling principles," Opt. Express, vol.13, pp. 3513-3528, 2005. DOI:10.1364/OPEX.13.003513
  5. Eugene Hecht, Optics, Addison-Wesley, 1987.
  6. A. G. Podoleanu, "Unbalanced versus balanced operation in an optical coherence tomography system," Appl. Opt. vol.39, pp. 173-182, 2000. DOI:10.1364/AO.39.000173
  7. H. S. Kim, M. Y. Namgoong, J. R. Lee, and J. Eom, "Realization of Swept Source-Optical Coherence Tomography System using Loop Mirror within Reference Arm," Conference on Optoelectronics & Optical Communications 2007 (COOC 2007), pp. 402-403, 2007.
  8. J. Eom, "Swept Source-Optical Coherence Tomography using New Recalibration Method for Nonlinear Sweeping Laser," J of Sensor Science and Technology, vol.21, no.1, pp. 68-74, 2012. DOI:10.5369/JSST.2012.21.1.68
  9. W. J. Yoo, J. Y. Heo, D. H. Cho, K. W. Jang, J. K. Seo, B. S. Lee, Y. H. Cho, J. H. Moon, and B. G. Park, "Spectroscopic study on the development of fiber-optic pH sensor," J of Sensor Science and Technology, vol.18, no.5, pp. 365-371, 2009. DOI:10.5369/JSST.2009.18.5.365