Fiberhome Telecommunication Technologies Co., Ltd

Wuhan Keda Marble Protective Materials Co., Ltd.

Wuhan Fiberhome Ruiguang Technology Co., Ltd

Qiong Lei

Kunwen Du

Kunwu Du

Lei Zhao

Wenyong Luo

Qi Mo

Yili Ke

Zhijian Liu

Fuming Hu

Rong Dan

Yunfei Wang

Zhiwen Kang

An epoxy caulking adhesive, including: a component A and a component B. The component A at least includes the following components in parts by weight: between 50 and 100 parts of an epoxy resin, between 0 and 100 part(s) of an inorganic filler, between 0 and 20 part(s) of a thickener. The component B at least includes the following components in parts by weight: between 20 and 100 parts of an amine curing agent, between 0 and 150 part(s) of the inorganic filler, and between 0 and 25 part(s) of the thickener. The weight ratio of the component A to the component B is between 1:1 and 10:1. At least one of the inorganic filler and the thickener exists in both the component A and the component B.

Caulking adhesive

Disclosed is a small-diameter polarization maintaining optical fiber, which relates to the field of special optical fibers. The small-diameter polarization maintaining optical fiber comprises a quartz optical fiber (); the periphery thereof is provided with an inner coating () and an outer coating (); the interior of the quartz optical fiber () is provided with an optical fiber core layer () and a quartz cladding (); two stress zones () are arranged between the optical fiber core layer () and the quartz cladding (); a buffer coating () is arranged between the inner coating () and the outer coating (); the periphery of each stress zone () is provided with a buffer layer () which is concentric with the stress zone (); when a working wavelength of a small-diameter polarization maintaining optical fiber is 1310 nm, the attenuation thereof reaches less than 0.5 dB/km, and the crosstalk reaches &#x2212;35 dB/km; and when the working wavelength of the small-diameter polarization maintaining optical fiber is 1550 nm, the attenuation thereof reaches less than 0.4 dB/km, and the crosstalk reaches &#x2212;30 dB/km. The optical fiber not only has excellent stability characteristics of attenuation and crosstalk, but also has the excellent stability characteristic of long-term operation, and can provide a better optical fiber ring for research on a high-precision optical fiber gyroscope, thereby laying the foundation for the development directions of miniaturization and high precision of the optical fiber gyroscope.

Small-diameter polarization maintaining optical fiber

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Wuhan, China

Qiong Lei