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Highly Pure Synthetic Quartz (pure SiO2) with Low OH Content (<1 Ppm) And Fluorine Content 0,3wt%

Highly pure synthetic quartz (pure SiO2) with low OH content  and fluorine content 
  • Low OH content and Fluorine Pure Silica core rod

  • KEEPTOP

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Low OH Rods – Optical Properties and Application Reference Table

Type 1 Type 2 Type 3
OH [ppm] specified typical

≤ 5

 0.2

≤ 1 

0.2

≤ 1

0.2

Cl [ppm] ≤ 2,500 ≤ 2,500 ≤ 200
F [ppm] - - 3,000 … 4,000
Trace impurities below detection limit of ICP-MS
Refractive index* +3.5 … +5 x 10-4 +3.5 … +5 x 10-4 - 6 … -12 x 10-4 others on request
Features Excellent transmission properties in VIS – NIR Absorption bands at λ < 400 nm Well suited for laser transmission at 1,064 nm Cost optimized quality for large volume price sensitive applications Excellent transmission properties in VIS – NIR Absorption bands at λ < 400 nm Well suited for laser transmission at 1,064 nm Customized quality available in small quantities Bubble free material Tight geometrical tolerances No surface scratches are allowed Fluorine doped material Ideal for broad range spectroscopy from 350 – 2,200 nm High radiation resistance to gamma irradiation at VIS and 1,310 nm

Depending on the application, high and low OH materials are available.


  • Fields of Applications

    • Core Material for Multi-mode or Plastic Clad Silica Fibers:
      As a material which later forms the light-conducting core of the fiber. These rods should be made of a material which has a low absorption in the desired wavelength region. This rod must then be provided with a cladding. This fiber either is a plastic clad pure silica core fiber (PCS) or the rod is given a quartz glass cladding with a lower refractive index (multi-mode fiber).

    • Photonic Crystal Fibers (PCF):
      For forming a preform for photonic crystal fibers (PCF) (stacking of different glass pieces, or drilling holes into the rods).

    • Handle Material:
      As an aid for the production of specialty fibers.


Quarts rods Dimensions:

D28x850 mm

D31x900 mm

D15x1200 mm

Or customized

Packing: wooden drum 

Pure SiO2 quartz rodPure SiO2 quartz rod3Pure SiO2 quartz rod4

Warranty

1. Preform supplier warrants that the delivered preform meet this specification(Table 1&2). If the preform does not appear to meet a specification ad evaluated based on this specification and preform supplier agrees such non-conforming condition, preform supplier will replace or compensate.

2. Assuming optimum and stable drawing conditions and measurement equipment conditions, the drawn fiber is expected to achieve the performances as stated in table 3.

When 85% of the drawn fibre achieve the expected performance, settlement of the preform shall made according the relevant terms of the main contract .

When 85% of the drawn fiber does not achieve the expected performance and the main rejection is caused by preform quality, the supplier will compensate the fiber lose by preform.

3. The calculation definition of qualified fiber proportion is shown as follows:

Qualified Fiber proportion = Lqualified fiber length(km) / Lexpected drawing fiber length(km) * 100%

Packing

1. Each preform will be packed in a box so that it could not be damaged during transportation.

2. Reform shall be wrapped in PE sheet and must with the ID lable mark for identification.

3. Preform shall be wrapped in Air bubble PE sheet securely.

4. Preform shall be supplied into wooden box (8 preforms per carton) with foamed PU bulk package.

5. An ID card of basic imformation shall be attached to each preform.Detail are as follow.

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Hangzhou Keeptop Optic Co., Ltd.
Phone: +86 19357069501
Address: FL 1, No. 67, Wusi Lushan street,Fuyang district, Hangzhou city, China
 

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