JPS55158145A - Manufacturing apparatus for optical fiber base material - Google Patents
Manufacturing apparatus for optical fiber base materialInfo
- Publication number
- JPS55158145A JPS55158145A JP6517279A JP6517279A JPS55158145A JP S55158145 A JPS55158145 A JP S55158145A JP 6517279 A JP6517279 A JP 6517279A JP 6517279 A JP6517279 A JP 6517279A JP S55158145 A JPS55158145 A JP S55158145A
- Authority
- JP
- Japan
- Prior art keywords
- tube
- transmitted
- beams
- temp
- laser beams
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
- C03B37/01—Manufacture of glass fibres or filaments
- C03B37/012—Manufacture of preforms for drawing fibres or filaments
- C03B37/014—Manufacture of preforms for drawing fibres or filaments made entirely or partially by chemical means, e.g. vapour phase deposition of bulk porous glass either by outside vapour deposition [OVD], or by outside vapour phase oxidation [OVPO] or by vapour axial deposition [VAD]
- C03B37/018—Manufacture of preforms for drawing fibres or filaments made entirely or partially by chemical means, e.g. vapour phase deposition of bulk porous glass either by outside vapour deposition [OVD], or by outside vapour phase oxidation [OVPO] or by vapour axial deposition [VAD] by glass deposition on a glass substrate, e.g. by inside-, modified-, plasma-, or plasma modified- chemical vapour deposition [ICVD, MCVD, PCVD, PMCVD], i.e. by thin layer coating on the inside or outside of a glass tube or on a glass rod
- C03B37/01807—Reactant delivery systems, e.g. reactant deposition burners
- C03B37/01815—Reactant deposition burners or deposition heating means
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Manufacture, Treatment Of Glass Fibers (AREA)
Abstract
PURPOSE:To efficiently deposit a uniform glass layer at all times by allowing laser beams parallel with a glass tube to intersect the tube; making the beams parallel with the tube again; and controlling a heating means according to the intensity of the beams incident on a photoreceptor. CONSTITUTION:While introducing reactive gas composition A into glass tube 1 like the arrow, the outer wall of tube 1 is heated with heating means 2 to vitrify a deposit on the inner wall. Laser beams are transmitted through a portion immediately after the vitrification with the first reflecting mirror 4, and the transmitted beams are made parallel with tube 1 again with the second reflecting mirror 5 and condensed in photodetector 7 to detect the quantity of the transmitted light. When the vitrified portion becomes devitrified owing to a temp. drop, the quantity of light transmitted throgh the portion is reduced. The flow rate of gases for means 2 is automatically adjusted according to the intensity of the laser beams, and the heating temp. is controlled to the necessary temp., so a glass layer uniformly vitrified in the longitudinal direction of tube 1 can be deposited.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6517279A JPS55158145A (en) | 1979-05-25 | 1979-05-25 | Manufacturing apparatus for optical fiber base material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6517279A JPS55158145A (en) | 1979-05-25 | 1979-05-25 | Manufacturing apparatus for optical fiber base material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS55158145A true JPS55158145A (en) | 1980-12-09 |
Family
ID=13279200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6517279A Pending JPS55158145A (en) | 1979-05-25 | 1979-05-25 | Manufacturing apparatus for optical fiber base material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55158145A (en) |
-
1979
- 1979-05-25 JP JP6517279A patent/JPS55158145A/en active Pending
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