A two-mode photonic crystal fiber includes a core of a substantially transparent core material. The core material has a core refractive index and a length, and has a core diameter. The fiber also includes a cladding region surrounding the length of core material. The cladding region has a first subs.....
[更多]
A temperature-regulating fiber may include a spun phase change polymeric material that may include a plurality of phase change polymer blocks. The fiber may have a fixity ratio of at least 80% and a recovery ratio of at least 74%.
[更多]
A method of controlling the state of polarization of an optical signal includes injecting the optical signal into a laser diode and matching the wavelength of the optical signal to a longitudinal mode of the laser diode. A stabilizer signal can also be injected in to the laser diode. The wavelength .....
[更多]
A method of palmprint identification includes analyzing an area from an image of a palm to obtain texture data for the skin surface with the area. The texture data is compared to reference information in a database to determine the identity of an individual. An apparatus for capturing an image of a .....
[更多]
In the present invention, methods and systems for fabricating novel LPFGs are taught. Fabrication is preformed by focusing a CO2 laser beam having a diameter of 30 to 40 μm onto a fiber, such fiber being fixed and weighted on either ends. The variations of transmission spectrum and polarization depe.....
[更多]
| |< <- | [69] [70] [71] [72] [73] [74] [75] [76] [77] [78] [79] | -> >| |
