JPS5855341A - Manufacture of optical fiber - Google Patents
Manufacture of optical fiberInfo
- Publication number
- JPS5855341A JPS5855341A JP15117581A JP15117581A JPS5855341A JP S5855341 A JPS5855341 A JP S5855341A JP 15117581 A JP15117581 A JP 15117581A JP 15117581 A JP15117581 A JP 15117581A JP S5855341 A JPS5855341 A JP S5855341A
- Authority
- JP
- Japan
- Prior art keywords
- optical fiber
- burner
- hydrogen
- bond
- deuterium
- 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
- 239000013307 optical fiber Substances 0.000 title claims abstract description 18
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 7
- 238000000034 method Methods 0.000 claims abstract description 19
- 239000000463 material Substances 0.000 claims abstract description 7
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 6
- YZCKVEUIGOORGS-OUBTZVSYSA-N Deuterium Chemical compound [2H] YZCKVEUIGOORGS-OUBTZVSYSA-N 0.000 claims abstract description 5
- 239000007789 gas Substances 0.000 claims abstract description 5
- 229910052805 deuterium Inorganic materials 0.000 claims abstract description 4
- 238000006243 chemical reaction Methods 0.000 claims abstract description 3
- 230000002194 synthesizing effect Effects 0.000 claims 1
- 239000003795 chemical substances by application Substances 0.000 abstract description 6
- 230000005540 biological transmission Effects 0.000 abstract description 5
- 230000031700 light absorption Effects 0.000 abstract description 2
- 239000002994 raw material Substances 0.000 abstract description 2
- 239000012808 vapor phase Substances 0.000 abstract description 2
- 229910052739 hydrogen Inorganic materials 0.000 abstract 3
- 239000001257 hydrogen Substances 0.000 abstract 3
- 239000007858 starting material Substances 0.000 abstract 2
- 229910003910 SiCl4 Inorganic materials 0.000 abstract 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 1
- 239000001301 oxygen Substances 0.000 abstract 1
- 229910052760 oxygen Inorganic materials 0.000 abstract 1
- 239000011148 porous material Substances 0.000 abstract 1
- FDNAPBUWERUEDA-UHFFFAOYSA-N silicon tetrachloride Chemical compound Cl[Si](Cl)(Cl)Cl FDNAPBUWERUEDA-UHFFFAOYSA-N 0.000 abstract 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- VXEGSRKPIUDPQT-UHFFFAOYSA-N 4-[4-(4-methoxyphenyl)piperazin-1-yl]aniline Chemical compound C1=CC(OC)=CC=C1N1CCN(C=2C=CC(N)=CC=2)CC1 VXEGSRKPIUDPQT-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 239000005049 silicon tetrachloride Substances 0.000 description 1
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]
- C03B37/01413—Reactant delivery systems
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B2201/00—Type of glass produced
- C03B2201/06—Doped silica-based glasses
- C03B2201/20—Doped silica-based glasses doped with non-metals other than boron or fluorine
- C03B2201/22—Doped silica-based glasses doped with non-metals other than boron or fluorine doped with deuterium
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B2207/00—Glass deposition burners
- C03B2207/36—Fuel or oxidant details, e.g. flow rate, flow rate ratio, fuel additives
- C03B2207/38—Fuel combinations or non-standard fuels, e.g. H2+CH4, ethane
Abstract
Description
【発明の詳細な説明】
本発明は、極めて伝送損失の小さい光ファイバーの製造
方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing an optical fiber with extremely low transmission loss.
近い将来、通信の分野などで光通信の大発展が予想され
ている。そしてこれを支えるもののひとつとして極低損
失光ファイバーがある。現在のところ、これを実現する
方法として気相軸・付は法（ＶｋＤ法、以下ＷＡＤ法と
記すととくする）が最も期待されている。こと？ＶＡｐ
法を簡単に説明する。・・・・・・・・・・光ファイバ
ーの原料の四塩化シリコンなどを蒸発させ気体状にする
。これを酸水素バーナーに送りこみ反応させると細かい
シリカガラスの微粒子が生成する。この微粒子を石英の
種棒の先端に吹き付汁て堆積させると、まずコア部の円
柱状多孔質母材が生成する。さらに同様な方法で合成り
ラッド部まで含んだ多孔質母材が生成するこの多孔質母
材を電気炉で加熱し、丸棒状の透明な光フアイバー用母
材が合成される。・・・・・・・・・・現在では１５０
［） ｎｍへ１６００ ｎｍの波長領域での伝送損失が
（１２ｄＢ／ｋｍの極めてすぐれた損失特性を示す光フ
ァイバーがこの’ＶＡＤ法によって作られた母材から作
られている（通研月報−５４−６（１９８１））＠この
極めて低損失な光７アイパーは、酸水素バーナー中での
反応時に混入したＯＨ基を、電気炉中で加熱処理する工
程で、脱ＯＨ剤を用いて徹底的ＫＷＩＩｋ〈ことによシ
得られている。In the near future, optical communications are expected to make great progress in the field of communications. One of the things that supports this is ultra-low loss optical fiber. At present, the most promising method for achieving this is the vapor phase axis/adhesive method (VkD method, hereinafter referred to as the WAD method). thing? VAp
Explain the law briefly.・・・・・・・・・ Evaporate silicon tetrachloride, etc., which is the raw material for optical fibers, to a gaseous state. When this is fed into an oxyhydrogen burner and reacted, fine silica glass particles are produced. When these fine particles are sprayed onto the tip of a quartz seed rod and deposited, a cylindrical porous matrix of the core is first formed. Further, a porous base material including the synthetic rad portion is produced in a similar manner, and this porous base material is heated in an electric furnace to synthesize a round bar-shaped transparent optical fiber base material.・・・・・・・・・Currently 150
Optical fibers exhibiting extremely excellent transmission loss characteristics of (12 dB/km) in the wavelength region of 1600 nm to 1600 nm are made from base materials made by this 'VAD method (Tsuken Monthly Report-54- 6 (1981)) @This extremely low-loss optical 7-eyeper is a process in which OH groups mixed in during the reaction in an oxyhydrogen burner are thoroughly removed by using a de-OH agent in the process of heat treatment in an electric furnace. Especially, it has been obtained.
本発明は極めて低損失な光ファイバーを得るために、こ
れとは異なる方法を用いた。すなわち、酸水素バーナー
の５応ガスのうち水素ガスが普通の水素ガス（Ｈ２）で
なく、重水素ガス（Ｄ、）であることを特徴とする。こ
の酸水素バーナーを用いると、多孔質母材の中Ｋｔ′！
ＯＨ結合を吃った部位がなくなる。すなわちＯＤ錯結合
もった部位Ｋｆ＃かわるだけである。近赤外部にかける
ＯＤ錯結合よる光吸収けＯＨ結合によるそれに比べて極
めて小さいので、この母材から作りた光ファイバーはそ
れ自身極めて低損失である。したがって現在のＶＡＤ法
の、電気炉中に脱ＯＨ剤を流し込むきいう工Ｓが省け、
ＶＡＤ法が極めて単純化されうる。The present invention uses a different method to obtain an optical fiber with extremely low loss. That is, the hydrogen gas among the five gases of the oxyhydrogen burner is not ordinary hydrogen gas (H2) but deuterium gas (D). When this oxyhydrogen burner is used, Kt'!
The site where the OH bond is removed disappears. In other words, only the site Kf# with the OD complex bond is changed. The light absorption by the OD complex bond in the near-infrared region is extremely small compared to that by the OH bond, so the optical fiber made from this base material itself has an extremely low loss. Therefore, the step S of pouring the deOH agent into the electric furnace in the current VAD method can be omitted.
The VAD method can be greatly simplified.
また、脱ＯＲ剤を使ったことに対する品質低下の心配も
ない、さらに、脱０１１１剤処運を併用することによっ
て、現在の水準をけるかに上オわる特性をもった光ファ
イバーが製造できると思われる。In addition, there is no need to worry about quality deterioration due to the use of an OR removal agent.Furthermore, by combining treatment with an 0111 removal agent, it is possible to manufacture optical fibers with characteristics far superior to current standards. It will be done.
以、上のように、本発明の光フアイバー製造方法は、現
在のＶＡＤ法よシさらに単純な１薯をもったＶＡＤ法を
提供するものであり、またさらにすぐれた伝送特性をも
った光ファイバーの製造方法を与えるものである。
以 玉出願人 株式会社 諏訪精工會As described above, the optical fiber manufacturing method of the present invention provides a VAD method that is simpler than the current VAD method, and also provides an optical fiber with even better transmission characteristics. It provides a manufacturing method.
Applicant Suwa Seiko Co., Ltd.
Claims (1)
素バーナーの反応ガスのうち水素ガスが重水素ガスであ
ることを特徴とする光フアイバー製造方法。A method for manufacturing an optical fiber, characterized in that hydrogen gas among the reaction gases of an oxyhydrogen burner used for synthesizing an optical fiber base material by the gas-phase axis-attached H method is deuterium gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15117581A JPS5855341A (en) | 1981-09-24 | 1981-09-24 | Manufacture of optical fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15117581A JPS5855341A (en) | 1981-09-24 | 1981-09-24 | Manufacture of optical fiber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5855341A true JPS5855341A (en) | 1983-04-01 |
Family
ID=15512939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15117581A Pending JPS5855341A (en) | 1981-09-24 | 1981-09-24 | Manufacture of optical fiber |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5855341A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6799440B2 (en) * | 2002-02-22 | 2004-10-05 | General Electric Company | Optical fiber deposition tube fused in deuterium atmosphere for attenuation improvement |
| US6856739B2 (en) | 2001-11-07 | 2005-02-15 | Jds Uniphase Corporation | Optical fiber for resisting hydrogen-induced loss |
-
1981
- 1981-09-24 JP JP15117581A patent/JPS5855341A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6856739B2 (en) | 2001-11-07 | 2005-02-15 | Jds Uniphase Corporation | Optical fiber for resisting hydrogen-induced loss |
| US6799440B2 (en) * | 2002-02-22 | 2004-10-05 | General Electric Company | Optical fiber deposition tube fused in deuterium atmosphere for attenuation improvement |
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