Short range high resolution 1.67 μm DIAL for methane leakage detection

Kouki Ikuta, Tsutomu Kudo, Yuji Oki, Nilesh J. Vasa, Mitsuo Maeda, Jun Nakagawa

Research output: Contribution to journalArticlepeer-review


A differential absorption lidar (light detection and ranging) system is developed as methane leakage detector using 1.67 μm absorption band. A detection range of various 100 m and 1000 ppm·m is estimated by numerical calculation, and 30 m resolution of detection is demonstrated experimentally. Since amplifier noise and telescope misalignment spoil the sensitivity and the range of the system, solutions are also proposed. Development of a compact optical parametric oscillator for a transmitter injection-seeded by a laser diode is also reported.

Original languageEnglish
Pages (from-to)199-205
Number of pages7
JournalResearch Reports on Information Science and Electrical Engineering of Kyushu University
Issue number2
Publication statusPublished - Sept 1999

All Science Journal Classification (ASJC) codes

  • Computer Science(all)
  • Electrical and Electronic Engineering


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