ISSN:
1089-7623
Source:
AIP Digital Archive
Topics:
Physics
,
Electrical Engineering, Measurement and Control Technology
Notes:
Extremely high sensitivity of a diode-pumped microchip Nd:YVO4 laser to external light injection is demonstrated in optical detection of Doppler shift from a moving object. Intensity modulation induced by reflected scattered light from a rotating object at the Doppler-shift frequency is measured for a 1-mm-long diode-pumped Nd:YVO4 laser. When adjusting the diode pump power so that the relaxation oscillation frequency is resonant to the Doppler-shift frequency, the minimum detectable intensity of scattered light injected back into the microchip laser can be 〈−170 dB weaker than the intracavity laser intensity. © 1995 American Institute of Physics.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.1145539
