With service-environments ranging from the Arctic through to the desert and even into outer-space, all of the components of a high-grade Fiber Optic Gyroscopes must continue to deliver their best performance over the broadest possible temperature range.
HB-G has a unique, dual-layer, acrylate coating which provides all of the low-temperature performance of a conventional, silicone-rubber coating - plus, the additional benefits of optical mode-stripping and total freedom from 'crumbing' during mechanical removal. Test coils have demonstrated extinction ratios of -27 dB at temperatures as low as -60°C.
|Design Wavelength1||830 nm||1300 nm||1550 nm|
|Numerical Aperture||0.16 +/- 10%|
|Attenuation2||<5 dB/km||<2 dB/km||<2 dB/km|
|Proof Test||0.5% or 1.0% (50 kpsi or 100 kpsi)|
|Outside Diameter4 (Fibre)||80µm +/- 1% RMS|
|Core Cladding Concentricity||<1.0µm or 0.5 µm|
|Outside Diameter (Coating)||175µm +/- 5%|
1. The Design Wavelength is the wavelength (or wavelengths) at
the which the fibre is typically used. In practice, the fibre
will transmit a TEM00 mode at any wavelength within an operating
window extending approximately 200 nm from the cut-off wavelength.
2. Attenuation is quoted for the shortest Design wavelength.
3. Beat-length is measured at 633 nm for all fibre types. To a first approximation, beat-length scales directly with operating wavelength.
4. Localised, peak-to-peak variations of up to 3% may be experienced.
|For more information, contact:
Phone: (727) 547-8307
Fax: (727) 547-0687
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