| CPC G01S 17/08 (2013.01) | 15 Claims |
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1. An apparatus for pseudo thermal light source ghost imaging and range sensing using narrow-band spontaneous emission, the apparatus comprising:
a pseudo thermal light source including a resonator type laser diode;
a temperature controller configured to control a temperature of the pseudo thermal light source;
a current controller configured to control a current of the pseudo thermal light source;
a beam splitter configured to split a laser beam emitted from the pseudo thermal light source into a first beam and a second beam;
a temporal correlator configured to infer a target range to an object through temporal coherence between the first beam and the second beam;
a spatial light modulator configured to modulate the first beam incident through the beam splitter into a specific spatial pattern, and emit the modulated first beam toward the object;
a spatial pattern generator configured to generate a spatial pattern for imaging the object, and transmit the generated spatial pattern to the spatial light modulator; and
an imaging calculator configured to calculate coherence between the spatial pattern transmitted from the spatial pattern generator and a result of measuring the first beam to obtain an image of the object,
wherein the pseudo thermal light source oscillates a laser beam having second order coherence when a specific current is applied according to temperature.
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