JP2022121657A - 光ファイバケーブル - Google Patents
光ファイバケーブル Download PDFInfo
- Publication number
- JP2022121657A JP2022121657A JP2022106972A JP2022106972A JP2022121657A JP 2022121657 A JP2022121657 A JP 2022121657A JP 2022106972 A JP2022106972 A JP 2022106972A JP 2022106972 A JP2022106972 A JP 2022106972A JP 2022121657 A JP2022121657 A JP 2022121657A
- Authority
- JP
- Japan
- Prior art keywords
- optical fiber
- light
- value
- fiber cable
- core
- 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.)
- Granted
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- 239000013307 optical fiber Substances 0.000 title claims abstract description 105
- 230000003287 optical effect Effects 0.000 claims abstract description 18
- 238000004891 communication Methods 0.000 claims abstract description 15
- 239000011162 core material Substances 0.000 claims description 54
- 239000002019 doping agent Substances 0.000 claims description 35
- 239000000463 material Substances 0.000 claims description 27
- 239000013308 plastic optical fiber Substances 0.000 claims description 20
- 239000000835 fiber Substances 0.000 claims description 17
- 230000005540 biological transmission Effects 0.000 abstract description 29
- 230000008054 signal transmission Effects 0.000 abstract description 7
- 229920000642 polymer Polymers 0.000 description 42
- 238000000034 method Methods 0.000 description 26
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- PPVPVKZXQJZBRA-UHFFFAOYSA-N (2,3,4,5,6-pentafluorobenzoyl) 2,3,4,5,6-pentafluorobenzenecarboperoxoate Chemical compound FC1=C(F)C(F)=C(F)C(F)=C1C(=O)OOC(=O)C1=C(F)C(F)=C(F)C(F)=C1F PPVPVKZXQJZBRA-UHFFFAOYSA-N 0.000 description 2
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- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 2
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- 239000012300 argon atmosphere Substances 0.000 description 2
- SESFRYSPDFLNCH-UHFFFAOYSA-N benzyl benzoate Chemical compound C=1C=CC=CC=1C(=O)OCC1=CC=CC=C1 SESFRYSPDFLNCH-UHFFFAOYSA-N 0.000 description 2
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- UUAGAQFQZIEFAH-UHFFFAOYSA-N chlorotrifluoroethylene Chemical group FC(F)=C(F)Cl UUAGAQFQZIEFAH-UHFFFAOYSA-N 0.000 description 2
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- 150000007824 aliphatic compounds Chemical class 0.000 description 1
- XYLMUPLGERFSHI-UHFFFAOYSA-N alpha-Methylstyrene Chemical compound CC(=C)C1=CC=CC=C1 XYLMUPLGERFSHI-UHFFFAOYSA-N 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- DPXHDUKRPTTXBJ-UHFFFAOYSA-N benzenesulfonylbenzene;hydrochloride Chemical class Cl.C=1C=CC=CC=1S(=O)(=O)C1=CC=CC=C1 DPXHDUKRPTTXBJ-UHFFFAOYSA-N 0.000 description 1
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- WWQLXRAKBJVNCC-UHFFFAOYSA-N bis(2,3,4,5,6-pentafluorophenyl)methanone Chemical compound FC1=C(F)C(F)=C(F)C(F)=C1C(=O)C1=C(F)C(F)=C(F)C(F)=C1F WWQLXRAKBJVNCC-UHFFFAOYSA-N 0.000 description 1
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- CSOXCCBZHKJVLZ-UHFFFAOYSA-N bis(2,3-dimethylpentan-3-yl)diazene Chemical compound CCC(C)(C(C)C)N=NC(C)(CC)C(C)C CSOXCCBZHKJVLZ-UHFFFAOYSA-N 0.000 description 1
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- ZGXHUGQEDPPKGZ-UHFFFAOYSA-N bis(2-methylbutan-2-yl)diazene Chemical compound CCC(C)(C)N=NC(C)(C)CC ZGXHUGQEDPPKGZ-UHFFFAOYSA-N 0.000 description 1
- PEDAIVKHTRIDMZ-UHFFFAOYSA-N bis(2-methylhexan-2-yl)diazene Chemical compound CCCCC(C)(C)N=NC(C)(C)CCCC PEDAIVKHTRIDMZ-UHFFFAOYSA-N 0.000 description 1
- HAPMLSSJGUUMQE-UHFFFAOYSA-N bis(2-methylpentan-2-yl)diazene Chemical compound CCCC(C)(C)N=NC(C)(C)CCC HAPMLSSJGUUMQE-UHFFFAOYSA-N 0.000 description 1
- ZOWMMXPOOKBMLD-UHFFFAOYSA-N bis(3-ethylpentan-3-yl)diazene Chemical compound CCC(CC)(CC)N=NC(CC)(CC)CC ZOWMMXPOOKBMLD-UHFFFAOYSA-N 0.000 description 1
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- 125000005647 linker group Chemical group 0.000 description 1
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- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000001624 naphthyl group Chemical group 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
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- 230000010355 oscillation Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- PNJWIWWMYCMZRO-UHFFFAOYSA-N pent‐4‐en‐2‐one Natural products CC(=O)CC=C PNJWIWWMYCMZRO-UHFFFAOYSA-N 0.000 description 1
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- 230000008569 process Effects 0.000 description 1
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- NHARPDSAXCBDDR-UHFFFAOYSA-N propyl 2-methylprop-2-enoate Chemical compound CCCOC(=O)C(C)=C NHARPDSAXCBDDR-UHFFFAOYSA-N 0.000 description 1
- PNXMTCDJUBJHQJ-UHFFFAOYSA-N propyl prop-2-enoate Chemical compound CCCOC(=O)C=C PNXMTCDJUBJHQJ-UHFFFAOYSA-N 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
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- 150000003464 sulfur compounds Chemical class 0.000 description 1
- 238000010557 suspension polymerization reaction Methods 0.000 description 1
- RHSWMKFUVRFEDV-UHFFFAOYSA-N tert-butyl 2-methyl-2-[[2-methyl-1-[(2-methylpropan-2-yl)oxy]-1-oxopropan-2-yl]diazenyl]propanoate Chemical compound CC(C)(C)OC(=O)C(C)(C)N=NC(C)(C)C(=O)OC(C)(C)C RHSWMKFUVRFEDV-UHFFFAOYSA-N 0.000 description 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 1
- 238000012719 thermal polymerization Methods 0.000 description 1
- XZZNDPSIHUTMOC-UHFFFAOYSA-N triphenyl phosphate Chemical compound C=1C=CC=CC=1OP(OC=1C=CC=CC=1)(=O)OC1=CC=CC=C1 XZZNDPSIHUTMOC-UHFFFAOYSA-N 0.000 description 1
- RXPRRQLKFXBCSJ-GIVPXCGWSA-N vincamine Chemical compound C1=CC=C2C(CCN3CCC4)=C5[C@@H]3[C@]4(CC)C[C@](O)(C(=O)OC)N5C2=C1 RXPRRQLKFXBCSJ-GIVPXCGWSA-N 0.000 description 1
- KOZCZZVUFDCZGG-UHFFFAOYSA-N vinyl benzoate Chemical compound C=COC(=O)C1=CC=CC=C1 KOZCZZVUFDCZGG-UHFFFAOYSA-N 0.000 description 1
- 229920001567 vinyl ester resin Polymers 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/02—Optical fibres with cladding with or without a coating
- G02B6/028—Optical fibres with cladding with or without a coating with core or cladding having graded refractive index
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/02—Optical fibres with cladding with or without a coating
- G02B6/028—Optical fibres with cladding with or without a coating with core or cladding having graded refractive index
- G02B6/0288—Multimode fibre, e.g. graded index core for compensating modal dispersion
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/02—Optical fibres with cladding with or without a coating
- G02B6/02033—Core or cladding made from organic material, e.g. polymeric material
- G02B6/02038—Core or cladding made from organic material, e.g. polymeric material with core or cladding having graded refractive index
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/02—Optical fibres with cladding with or without a coating
- G02B6/02042—Multicore optical fibres
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
- Optical Couplings Of Light Guides (AREA)
- Glass Compositions (AREA)
Abstract
Description
[合成例A] 全フッ素系材料の合成方法
全フッ素材料としては、一般的に製品名TEFRON-AF(DuPont社)やHyflonAD(Solvay社)や、CYTOP(旭硝子株式会社)を用いる事ができる。またこれらの主環構造にテトラフルオロエチレン等で共重合した全フッ素重合体を用いてもよい。またジオキソレン骨格を有する全フッ素重合体も用いる事ができる。次にジオキソレン骨格を有する全フッ素材料の合成方法について述べる。
2-クロロ-1-プロパノールと1-クロロ-2-プロパノールとトリフルオロピルビン酸メチルを脱水縮合反応により2-カルボメチル-2-トリフルオロメチル-4-メチル-1,3-ジオキソランの精製物を得た。次にパーフルオロ-4-メチル-2-メチレン-1,3-ジオキソランのフッ素化を行う。溶媒として1,1,2-トリクロロトリフルオロエタンを用い、窒素ガス及び、フッ素ガスを各々一定の流速で流し、窒素/フッ素の雰囲気下において、先に準備した2-カルボメチル-2-トリフルオロメチル-4-メチル-1,3-ジオキソランを反応槽にゆっくり加えることによりフッ素化処理を行いパーフルオロ-2,4-ジメチル-1,3-ジオキソラン-2-カルボン酸を得た。上記蒸留物を水酸化カリウム水溶液で中和し、パーフルオロ-2,4-ジメチル-2-カルボン酸カリウム-1,3-ジオキソランを得た。このカリウム塩を真空乾燥し、更にアルゴン雰囲気下で、塩を分解することで、パーフルオロ-4-メチル-2-メチレン-1,3-ジオキソランを得た。上記にて得られたパーフルオロ-4-メチル-2-メチレン-1,3-ジオキソランとパーフルオロベンゾイルパーオキサイドをガラスチューブにいれ、これを冷凍/解凍真空機で脱気した後、アルゴンを再充填し、数時間加熱した。内容物は固体となり、透明なポリマーが得られた。このポリマーを用いて光ファイバを作製した。
次に部分塩素系材料の作成方法について、簡単に述べる。予め蒸留精製したトリクロロエチルメタクリレートと昇華精製したシクロヘキシルマレイミドと屈折率付与剤のドーパントとしてジフェニルスルフィドを各々精秤し、ガラス容器に入れた。更に、全重量中の濃度に対し所定量の重合開始剤としてジターシャリーブチルパーオキサイド及び連鎖移動剤としてノルマル-ラウリルメルカブタンを添加した。この溶液を十分混合後、細孔径のメンブレンフィルタを通すことによりガラス製重合容器に入れ濾過を行った。次にこの溶液の入ったガラス製重合管にアルゴンガスを導入しながら、凍結脱気法により溶存空気を除去した。このガラス重合管をオーブンに入れアルゴンガスを導入しながら重合容器の温度を上げ、モノマーを重合し、更に温度をあげることで重合反応を完了させた。このガラス管を開封し、固化した透明な重合ロッドを得た。
上記合成した重合ロッドを用いてGI-POFの作製(装置は特許第5514802号参照)を行った。本作成は、溶融押出ドーパント拡散法により光ファイバを得る方法である。上記合成例で作成した重合ロッドを溶融押出装置の中心のコアの場所に充填した。また予め被覆層には乾燥したPMMA樹脂(ポリメチルメタクリレート樹脂)をクラッドの押出機のホッパーに充填した。同様に最外層となる被覆層には乾燥したPC樹脂(ポリカーボネート樹脂)をオーバークラッドの押出機のホッパーに充填した。この押出装置のコア部、クラッド部、オーバークラッド部に充填されたポリマーを加熱した。コア部上端面に窒素ガス圧をかけ、また、クラッド及びオーバークラッドに充填させた樹脂はスクリュー押出機により3種のポリマーを共押出しすることによりノズルから吐出させた。こうして3層構造になるように溶融押出紡糸処理を行いGI-POFを得た。
[合成例1] 部分フッ素系材料を用いたPOF材料の合成方法
コアロッドと中空構造のクラッドロッドを別々に作製し、次にコアロッドの外周部に中空クラッドロッドを挿入しプリフォームを作成した。
[合成例2] 全フッ素系材料の合成方法
2-クロロ-1-プロパノールと1-クロロ-2-プロパノールとトリフルオロピルビン酸メチルの混合物139gをフラスコに入れ、その中にトリフルオロピルビン酸メチルを入れ脱水縮合反応により2-カルボメチル-2-トリフルオロメチル-4-メチル-1,3-ジオキソランの精製物230gを得た。次にパーフルオロ-4-メチル-2-メチレン-1,3-ジオキソランのフッ素化を行った。溶媒として1,1,2-トリクロロトリフルオロエタンを用い、窒素ガスを1340cc/min、フッ素ガスを580 cc/minの一定の流速で流し、窒素/フッ素の雰囲気下において、先に準備した2-カルボメチル-2-トリフルオロメチル-4-メチル-1,3-ジオキソラン230gを反応槽にゆっくり加えることによりフッ素化処理を行いパーフルオロ-2,4-ジメチル-1,3-ジオキソラン-2-カルボン酸を約150g得た。この工程による、フッ素化収率は約85%であった。これを水酸化カリウム水溶液で中和することで、パーフルオロ-2,4-ジメチル-2-カルボン酸カリウム-1,3-ジオキソランを得た。このカリウム塩を真空乾燥し、更にアルゴン雰囲気下で、塩を分解することで、パーフルオロ-4-メチル-2-メチレン-1,3-ジオキソランを得た。上記にて得られたパーフルオロ-4-メチル-2-メチレン-1,3-ジオキソランとパーフルオロベンゾイルパーオキサイドをガラスチューブにいれ、これを冷凍/解凍真空機で脱気した後、アルゴンを再充填し、数時間加熱した。内容物は固体となり、透明なポリマーが約120g得られた。このポリマーを用いて光ファイバを作成した。
合成例1で得たプリフォームを先に述べたプリフォーム法により光ファイバを作製した。即ちプリフォームを一般の紡糸装置にセットし、210℃で溶融延伸し、長さ200m、外径約500μm、コア径約80μmのGI-POFを得た。
溶融押出ドーパント拡散法を利用して、光ファイバを作製した。
[評価方法1] NFP及びFFPの測定方法
NFP及びFFPの測定系を図3に示す。
[評価方法2] BERの測定方法
BERの測定系を図4に示す。
石英系ガラスとして、コーニング製OM4_TIA/EIA 492-AAADを用意し、長さ1m(比較例1)、2m(比較例2)、5m(比較例3)、10m(比較例4)、20m(比較例5)、30m(比較例6)の場合について、実施例と同様の評価を行った。M2値の結果を表1に示す。
Claims (6)
- 発光素子からの光ビームを受光素子に伝送することによる光通信に使用する光ファイバケーブルであって、
発光素子側の端部である近位端と、受光素子側の端部である遠位端とを有し、
前記遠位端側から前記発光素子側へ戻る光ビームのM2値が1.7以上であり、
長さが100m以下である、
ことを特徴とする、前記光ファイバケーブル。 - 前記光ビームのM2値が5.0以下であることを特徴とする、請求項1に記載の光ファイバケーブル。
- 前記光ファイバケーブルが屈折率分布(GI)型であることを特徴とする、請求項1又は2に記載の光ファイバケーブル。
- 前記光ファイバケーブルがプラスチック光ファイバ(POF)であることを特徴とする、請求項1~3のいずれか1項に記載の光ファイバケーブル。
- 前記プラスチック光ファイバ(POF)のコア材料が、全フッ素系、部分フッ素系、又は部分塩素系、部分重水素化系の材料であることを特徴とする、請求項4に記載の光ファイバケーブル。
- 前記コア材料がドーパントを含むことを特徴とする、請求項5に記載の光ファイバケーブル。
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JP2022106972A JP7382457B2 (ja) | 2017-09-11 | 2022-07-01 | 光ファイバケーブル |
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US10998976B2 (en) | 2019-08-26 | 2021-05-04 | The Boeing Company | Process for extending operating temperature range of gigabit plastic optical fiber |
US11079554B1 (en) * | 2020-02-26 | 2021-08-03 | The Boeing Company | Process for polishing end face of gigabit plastic optical fiber |
EP4159396A1 (en) * | 2020-05-29 | 2023-04-05 | Nitto Denko Corporation | Optics-use resin molded body production method, resin fiber production method, and resin fiber production apparatus |
WO2022176864A1 (ja) * | 2021-02-16 | 2022-08-25 | 日東電工株式会社 | プラスチック光ファイバー及びその製造方法 |
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US11092738B2 (en) | 2021-08-17 |
JP2019049658A (ja) | 2019-03-28 |
KR20220136490A (ko) | 2022-10-07 |
TWI805615B (zh) | 2023-06-21 |
WO2019050045A1 (ja) | 2019-03-14 |
US20200264365A1 (en) | 2020-08-20 |
EP3683607A4 (en) | 2021-05-26 |
TW201921018A (zh) | 2019-06-01 |
JP7382457B2 (ja) | 2023-11-16 |
CN111344614A (zh) | 2020-06-26 |
KR20200079483A (ko) | 2020-07-03 |
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CN115826129A (zh) | 2023-03-21 |
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