Microgyroscope

A microgyroscope, comprising:

• a tapered optical fiber defining a pumping unit and an output coupler, the pumping unit inputting pumping light for optical pumping;
• first and second microspheres or microdiscs disposed on first and second sides, respectively, of the tapered optical fiber, the first and second microspheres or microdiscs oscillating first and second laser beams, respectively, therein by performing optical pumping using the pumping light received from the pumping unit;
• the output coupler receiving the oscillated laser beam from the first and second microspheres or microdiscs;
• and
• a photodetector receiving the first and second laser beams and a processor that receives an output from the photodetector and calculates a beat frequency due to interference between the first and second laser beams output from the output coupler to measure rotation.