| 摘要 |
A multi-line tunable laser system, which uses lasers as light sources to illuminate, identify and or quantify one or mote targets based on multi-dimensional spectral characteristics of each target The system includes a plurality of laser sources, each tunable to emit an electromagnetic wave, and at least one tuning controller for tuning and locking each beam of light to a wavelength of required spectral line-width. The system also includes a transmitter for transmitting each beam of light to illuminate one or more targets, and a receiver for receiving light returning from the targets and converting the returned light to electrical signals for identifying and or quantifying the targets. The system further includes N tunable lasers where, M of the N lasers arc each tuned to a wavelength that is partially absorbed by me targets, and L of the N (one or more) of the lasers arc each tuned to a wavelength that is absorption-free of the targets. |
