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Abstract |
A differential absorption lidar (light detection and ranging) system is developed as methane leakage detector using 1.67μm absorption band. A detection range of various 100m and 1000ppm・m is estimated... by numerical calculation, and 30m 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.show more
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