公开(公告)号：US11384196B2

公开(公告)日：2022-07-12

申请号：US16381025

申请日：2019-04-11

Applicant: Nano and Advanced Materials Institute Limited

Inventor： Yeuk Tin Lau ,  Wei Li ,  Shing Hang Ng ,  Kin Hang Ken Ng ,  Xin Shi

IPC: C08G59/42 ,  C08K3/016 ,  C08K3/22 ,  C08L63/00 ,  C09D5/18

Abstract: The present disclosure provides a fire retardant composition that includes a non-intumescent composition and an intumescent composition, fire retardant coatings including the same, and methods of preparation and use thereof.

公开(公告)号：US20160223744A1

公开(公告)日：2016-08-04

申请号：US15008469

申请日：2016-01-28

Applicant: Nano and Advanced Materials Institute Limited

Inventor： Yeuk Lai Hoo ,  Xin Shi ,  Tik Ho Lau ,  Peter Wai-Man Lee

IPC: G02B6/02 ,  H01S3/10

CPC classification number: G02B6/02204 ,  G02B6/02095 ,  G02B6/02147 ,  G02B6/2552 ,  H01S3/06754 ,  H01S3/1003 ,  H01S2301/04

Abstract: A tunable gain flattening filter includes a long-period grating device. The long-period grating device includes: an optical fiber that includes a core having a refractive index and a core guided mode with a first effective index, and a cladding surrounding the core and having a cladding mode with a second effective index that is less than the first effective index; a thermoelectric module, the optical fiber being mounted on the thermoelectric module; a thermoelectric cooler configured to precisely control temperature of the optical fiber; and a thermistor configured as a sensor to provide feedback for the thermoelectric module. A plurality of perturbations in refractive index are defined on the core spaced apart by a periodic distance so as to form a long-period grating with a center wavelength. Diameter of the optical fiber is tapered or etched by HF solution to about 6 to 10 μm.

Abstract translation: 可调谐增益平坦滤波器包括长周期光栅装置。 长周期光栅装置包括：光纤，其包括具有折射率的芯和具有第一有效折射率的芯引导模式，以及包围芯的包层，并且具有小于第二有效折射率的包层模式 第一个有效指标; 热电模块，光纤安装在热电模块上; 配置为精确地控制光纤的温度的热电冷却器; 以及构造为传感器以提供热电模块的反馈的热敏电阻。 多个在折射率上的扰动被定义在间隔开周期距离的纤芯上，以形成具有中心波长的长周期光栅。 光纤的直径由HF溶液呈锥形或蚀刻至约6至10μm。