摘要:
A multimode optical fiber includes a core portion (102) formed from SiO 2 intentionally doped with a single dopant, wherein the single dopant is phosphorous or a compound of phosphorous. A glass cladding portion (103) surrounds and is in direct contact with the core portion (102). The glass cladding portion comprises an outer cladding portion (108) and a low-index moat (106) disposed between the core portion (102) and the outer cladding portion (108). The optical fiber may also have a bandwidth greater than or equal to 2000 MHz-km for each wavelength within a wavelength operating window centered on a wavelength within an operating wavelength range from about 850 nm to about 1310 nm, the wavelength operating window having a width greater than 100 nm. The optical fiber may also have a restricted launch bend loss less than or equal to 0.5 dB/(2 turns around a 15 mm diameter mandrel) at 850 nm.
摘要:
Described is a technique for the design and manufacture of MMFs. Designs are implemented so as to limit the maximum variation in z{r, λ) with respect to wavelength, where z(r. λ) is the dielectric constant weighted by the square of the vvaveiengih. MMFs for use in CWDM applications are specifically described.
摘要:
A luminary fabric, useful for a variety of applications including signage, has at least one light-diffusing optical fiber woven, knitted, crocheted or otherwise integrated into the fabric. The light-diffusing optical fiber is coupled to at least one light source such as a laser or a light emitting diode. At least one coating is applied over at least a section of the outer surface of the optical fiber along its length. The coating contains at least one luminophore that absorbs energy from the light source and luminesces at a different higher wavelength. Multiple coatings containing one or more luminophores, one or more pigments, and/or one or more dyes may be employed to provide a variety of interesting visual effects.
摘要:
At least one flexible light diffusing waveguide (210') is arranged to define a plurality of light diffusing waveguide segments (212', 214', 216') arranged substantially parallel to one another, and is coupled to at least one light source (218a, 218b, 218c, 219a, 219b, 219c) to provide a flexible light panel suitable for general lighting purposes or for use as a backlight in a display, such as a video display. Multiple waveguides can be coupled to different color light sources to provide a multi-colored flexible backlight that is usable in combination with a flexible matrix-addressable panel to provide a flexible video display.
摘要:
Provided is a bend-insensitive optical fiber including a core centered at the optical fiber, a cladding surrounding the core and having a lower refractive index than the core, a coating layer surrounding the cladding, and a region formed in the cladding and having a lower refractive index than the cladding, wherein the coating layer has a multilayered structure and a total outer diameter of 240 ? or less, and a bend-insensitive optical cable comprising the same.
摘要:
A photovoltaic (PV) system includes a fiber optical waveguide comprising an active core that hosts material configured to absorb and emit light, a cladding layer surrounding the active core, the cladding layer being configured to allow ambient light to pass through the cladding layer, and an exit port located proximate an end of the waveguide. The PV system further comprises one or more solar cells disposed at the exit port of the waveguide. The waveguide is configured to guide light to the one or more solar cells. Another photovoltaic (PV) system includes a waveguide comprising an active cladding layer hosting material configured to absorb and emit light, and a core layer configured to confine light emitted by the active cladding layer. The PV system further includes one or more solar cells disposed proximate the waveguide. The core layer is configured to guide light to the one or more solar cells.
摘要:
An optically active linear single polarization device includes a linearly birefringent and linearly dichroic optical waveguide (30) for propagating light and having single polarization wavelength range (48). A plurality of active dopants are disposed in a portion (34) of the linearly birefringent and linearly dichroic optical waveguide (30) for providing operation of the waveguide in an operating wavelength range (650) for overlapping the single polarization wavelength range (48).