发明名称 |
Optical resonator gyro with external cavity beam generator |
摘要 |
Methods and apparatus are provided for determining the rotational rate of an optical gyro. An optical gyro comprises at least one substrate, a multi-frequency light source (MFLS) mounted on the substrate, and a resonator coupled to the MFLS. The MFLS is configured to produce a first light beam having a first frequency and a second light beam having a second frequency and phase locked with the first light beam. The resonator comprises an optical fiber coil having a hollow core. The resonator is configured to circulate a portion of each of the first and second light beams through the hollow core. The portion of the first light beam propagates in a first counter-propagating direction, and the portion of the second light beam propagates in a second counter-propagating direction. A measured difference between the first and second frequencies indicates a frequency shift proportional to the rotation rate of the optical gyro.
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申请公布号 |
US2007242276(A1) |
申请公布日期 |
2007.10.18 |
申请号 |
US20060406939 |
申请日期 |
2006.04.18 |
申请人 |
HONEYWELL INTERNATIONAL, INC. |
发明人 |
HUGHES GRENVILLE;SANDERS GLEN A.;STRANDJORD LEE K. |
分类号 |
G01C19/72 |
主分类号 |
G01C19/72 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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