公开(公告)号：US20130223804A1

公开(公告)日：2013-08-29

申请号：US13476622

申请日：2012-05-21

申请人： Jeong I. KIM ,  Daniel KOMINSKY ,  Gary PICKRELL ,  Ahmad SAFAAI-JAZI ,  Roger H. STOLEN ,  Anbo WANG

发明人： Jeong I. KIM ,  Daniel KOMINSKY ,  Gary PICKRELL ,  Ahmad SAFAAI-JAZI ,  Roger H. STOLEN ,  Anbo WANG

IPC分类号： C03B37/016 ,  G02B6/02

CPC分类号： G02B6/02385 ,  C03B37/01297 ,  C03B37/016 ,  C03B37/02781 ,  C03B2203/14 ,  C03B2203/42 ,  C03C11/007 ,  C03C13/04 ,  G01L1/243 ,  G02B6/02295 ,  G02B6/02333 ,  G02B6/02338 ,  G02B6/02357 ,  G02B6/02366 ,  G02B6/032

摘要： A random array of holes is created in an optical fiber by gas generated during fiber drawing. The gas forms bubbles which are drawn into long, microscopic holes. The gas is created by a gas generating material such as silicon nitride. Silicon nitride oxidizes to produce nitrogen oxides when heated. The gas generating material can alternatively be silicon carbide or other nitrides or carbides. The random holes can provide cladding for optical confinement when located around a fiber core. The random holes can also be present in the fiber core. The fibers can be made of silica. The present random hole fibers are particularly useful as pressure sensors since they experience a large wavelength dependant increase in optical loss when pressure or force is applied.

公开(公告)号：US20140013808A1

公开(公告)日：2014-01-16

申请号：US14023031

申请日：2013-09-10

申请人： Jeong I. KIM ,  Daniel KOMINSKY ,  Gary PICKRELL ,  Ahmad SAFAAI-JAZI ,  Roger STOLEN ,  Anbo WANG

发明人： Jeong I. KIM ,  Daniel KOMINSKY ,  Gary PICKRELL ,  Ahmad SAFAAI-JAZI ,  Roger STOLEN ,  Anbo WANG

IPC分类号： C03B37/027

CPC分类号： G02B6/02385 ,  C03B37/01297 ,  C03B37/016 ,  C03B37/02781 ,  C03B2203/14 ,  C03B2203/42 ,  C03C11/007 ,  C03C13/04 ,  G01L1/243 ,  G02B6/02295 ,  G02B6/02333 ,  G02B6/02338 ,  G02B6/02357 ,  G02B6/02366 ,  G02B6/032

摘要： A random array of holes is created in an optical fiber by gas generated during fiber drawing. The gas forms bubbles which are drawn into long, microscopic holes. The gas is created by a gas generating material such as silicon nitride. Silicon nitride oxidizes to produce nitrogen oxides when heated. The gas generating material can alternatively be silicon carbide or other nitrides or carbides. The random holes can provide cladding for optical confinement when located around a fiber core. The random holes can also be present in the fiber core. The fibers can be made of silica. The present random hole fibers are particularly useful as pressure sensors since they experience a large wavelength dependant increase in optical loss when pressure or force is applied.

摘要翻译： 在纤维拉伸中产生的气体在光纤中产生随机阵列的孔。 气体形成气泡，其被吸入长的微观孔中。 气体由氮化硅等气体发生材料形成。 氮化硅在加热时氧化生成氮氧化物。 气体发生材料可以替代地是碳化硅或其它氮化物或碳化物。 当位于纤维芯周围时，随机孔可以提供用于光学限制的包层。 随机孔也可以存在于纤维芯中。 纤维可以由二氧化硅制成。 当前的随机孔纤维作为压力传感器是特别有用的，因为当施加压力或力时，它们经历大的波长依赖性的光学损失增加。

公开(公告)号：US20060291768A1

公开(公告)日：2006-12-28

申请号：US11469759

申请日：2006-09-01

申请人： Anbo WANG

发明人： Anbo WANG

IPC分类号： G02B6/00

CPC分类号： G01L1/246 ,  G01D5/35345 ,  G01D5/35377 ,  G02B6/02071

摘要： A optical fiber sensor for measuring temperature and/or pressure employs temporally created long period gratings. The gratings may be produced by a periodic change in the refractive index of the fiber along the fiber longitudinal axis caused by periodically spaced compressive and/or expansive forces or by spaced-apart unbalanced forces that cause periodic fiber micro-bending. Pressure and temperature are determined by measuring changes in both the wavelength at which light is coupled from a mode guided by a core to a different mode and an amount of such coupling. The gratings are created intrinsically and extrinsically. Single and multiple core fibers are used.

摘要翻译： 用于测量温度和/或压力的光纤传感器采用暂时创建的长周期光栅。 可以通过由周期性间隔的压缩和/或膨胀力或通过引起周期性纤维微弯曲的间隔不平衡的力沿着纤维纵向轴线的纤维的折射率的周期性变化来产生光栅。 通过测量从芯引导的模式到不同模式的光耦合的波长和这种耦合的量的变化来确定压力和温度。 光栅是内在和外在的。 使用单芯和多芯纤维。