发明名称 |
Photonic crystal based sensor or modulator |
摘要 |
A gyroscope having photonic crystals for sensing rotation uses the Sagnac effect to determine angular motion. The gyroscope comprises a photonic crystal capable of guiding counter-propagating light beams in a closed path. A light source, coupling, and detection apparatus permits detection of phase changes between the counter-propagating beams, thereby permitting measurement of angular rotation. The photonic crystal comprises a periodic structure of pillars and voids which creates a photonic bandgap waveguide within which light waves in the proper wavelength range propagate with low loss. |
申请公布号 |
US8203718(B2) |
申请公布日期 |
2012.06.19 |
申请号 |
US201113029059 |
申请日期 |
2011.02.16 |
申请人 |
TAZARTES DANIEL A.;MARINO KENNETH D.;NORTHROP GRUMMAN GUIDANCE AND ELECTRONIC CORPORATION, INC. |
发明人 |
TAZARTES DANIEL A.;MARINO KENNETH D. |
分类号 |
G01B9/02;G01C19/72 |
主分类号 |
G01B9/02 |
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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