140-nm quasi-continuous fast sweep using SSG-DBR lasers

N. Fujiwara, R. Yoshimura, K. Kato, H. Ishii, F. Kano, Y. Kawaguchi, Y. Kondo, K. Ohbayashi, H. Oohashi

Research output: Contribution to journalArticle

16 Citations (Scopus)


We demonstrate a single-mode and fast wavelength swept light source by employing superstructure-grating distributed Bragg reflector (SSG-DBR) lasers for use in optical frequency-domain reflectometry optical coherence tomography. A noteworthy feature is that our laser employs a thermal drift compensator (TDC). By utilizing the TDC, we achieved a fast wavelength sweep without any unexpected mode hopping. We newly designed and fabricated SSG-DBR lasers covering the following four wavelength bands: 1496-1529, 1529-1564, 1564-1601, and 1601-1639 nm. We achieved a stable operation for the whole wavelength range. A wide wavelength tuning of 143 nm was achieved within 1.4 ms. A single-mode, wide, and fast wavelength sweep was demonstrated.

Original languageEnglish
Pages (from-to)1015-1017
Number of pages3
JournalIEEE Photonics Technology Letters
Issue number12
Publication statusPublished - Jun 15 2008
Externally publishedYes


All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering

Cite this

Fujiwara, N., Yoshimura, R., Kato, K., Ishii, H., Kano, F., Kawaguchi, Y., ... Oohashi, H. (2008). 140-nm quasi-continuous fast sweep using SSG-DBR lasers. IEEE Photonics Technology Letters, 20(12), 1015-1017. https://doi.org/10.1109/LPT.2008.923544