Abstract
The drastic shortening of a photon lifetime as compared with normal operations has been shown to be associated with the formation of annular mode operations in a thin-slice laser with tilted laser diode end pumping. The 15 dB enhancement of the signal-to-noise ratio, owing to the shortened photon lifetime, has been demonstrated in the self-mixing laser Doppler velocimetry experiment in comparison with the operations, where the minimum intensity feedback rate from a target to the laser for successful measurements was estimated to be , which corresponds to 0.007 photon per Doppler cycle.
© 2015 Optical Society of America
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12 October 2015: A correction was made to Ref. 10
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