Design of a widely tunable laser with a chirped ladder filter

Takaaki Kakitsuka, Shinji Matsuo, Seok Hwan Jeong, Toru Segawa, Hiroshi Okamoto, Yoshihiro Kawaguchi, Yasuhiro Kondo, Yuzo Yoshikuni, Hiroyuki Suzuki

Research output: Contribution to journalArticle

Abstract

We theoretically investigated a digitally tunable laser with a chirped ladder filter and a ring resonator to obtain a wide wavelength tuning range covering the whole C- or L- band. The clear relation between the tuning range and laser structure, especially the ladder filter, is described analytically. The introduction of a chirped structure into a ladder filter is effective in achieving both wide tunability and a stable lasing mode. A numerical simulation based on multimode rate equations shows that a tuning range of over 40 nm and a mode suppression ratio over 40 dB can be achieved by introducing a chirped ladder filter.

Original languageEnglish
Pages (from-to)1053-1060
Number of pages8
JournalOptical and Quantum Electronics
Volume38
Issue number12-14
DOIs
Publication statusPublished - 2006 Sep 1
Externally publishedYes

Fingerprint

Ladder networks
Laser tuning
tunable lasers
ladders
filters
Tuning
tuning
C band
ultrahigh frequencies
lasing
Resonators
coverings
resonators
retarding
Wavelength
Lasers
rings
Computer simulation
wavelengths
lasers

Keywords

  • Gain
  • Ladder
  • Rate equation
  • Ring
  • Tunable laser

ASJC Scopus subject areas

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

Cite this

Kakitsuka, T., Matsuo, S., Jeong, S. H., Segawa, T., Okamoto, H., Kawaguchi, Y., ... Suzuki, H. (2006). Design of a widely tunable laser with a chirped ladder filter. Optical and Quantum Electronics, 38(12-14), 1053-1060. https://doi.org/10.1007/s11082-006-9030-z

Design of a widely tunable laser with a chirped ladder filter. / Kakitsuka, Takaaki; Matsuo, Shinji; Jeong, Seok Hwan; Segawa, Toru; Okamoto, Hiroshi; Kawaguchi, Yoshihiro; Kondo, Yasuhiro; Yoshikuni, Yuzo; Suzuki, Hiroyuki.

In: Optical and Quantum Electronics, Vol. 38, No. 12-14, 01.09.2006, p. 1053-1060.

Research output: Contribution to journalArticle

Kakitsuka, T, Matsuo, S, Jeong, SH, Segawa, T, Okamoto, H, Kawaguchi, Y, Kondo, Y, Yoshikuni, Y & Suzuki, H 2006, 'Design of a widely tunable laser with a chirped ladder filter', Optical and Quantum Electronics, vol. 38, no. 12-14, pp. 1053-1060. https://doi.org/10.1007/s11082-006-9030-z
Kakitsuka T, Matsuo S, Jeong SH, Segawa T, Okamoto H, Kawaguchi Y et al. Design of a widely tunable laser with a chirped ladder filter. Optical and Quantum Electronics. 2006 Sep 1;38(12-14):1053-1060. https://doi.org/10.1007/s11082-006-9030-z
Kakitsuka, Takaaki ; Matsuo, Shinji ; Jeong, Seok Hwan ; Segawa, Toru ; Okamoto, Hiroshi ; Kawaguchi, Yoshihiro ; Kondo, Yasuhiro ; Yoshikuni, Yuzo ; Suzuki, Hiroyuki. / Design of a widely tunable laser with a chirped ladder filter. In: Optical and Quantum Electronics. 2006 ; Vol. 38, No. 12-14. pp. 1053-1060.
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