JPS60260010A - Connecting method of polarization plane maintaining optical fiber - Google Patents
Connecting method of polarization plane maintaining optical fiberInfo
- Publication number
- JPS60260010A JPS60260010A JP11624184A JP11624184A JPS60260010A JP S60260010 A JPS60260010 A JP S60260010A JP 11624184 A JP11624184 A JP 11624184A JP 11624184 A JP11624184 A JP 11624184A JP S60260010 A JPS60260010 A JP S60260010A
- Authority
- JP
- Japan
- Prior art keywords
- polarization
- optical fiber
- maintaining optical
- optical fibers
- polarization plane
- 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
-
- 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
- G02B6/24—Coupling light guides
- G02B6/36—Mechanical coupling means
- G02B6/38—Mechanical coupling means having fibre to fibre mating means
- G02B6/3801—Permanent connections, i.e. wherein fibres are kept aligned by mechanical means
- G02B6/3803—Adjustment or alignment devices for alignment prior to splicing
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Coupling Of Light Guides (AREA)
Abstract
Description
【発明の詳細な説明】
［発明の背景と目的］
本発明は偏波面保存光ファイバの接続方法に係り、特に
第１．第２の偏波面保存光ファイバを固有偏光軸同志が
整合するように接続する偏波面保存光ファイバの接続方
法の改良に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Background and Objectives of the Invention] The present invention relates to a method for connecting polarization-maintaining optical fibers, and particularly relates to a method for connecting polarization-maintaining optical fibers. The present invention relates to an improvement in a method for connecting polarization-maintaining optical fibers in which second polarization-maintaining optical fibers are connected so that their intrinsic polarization axes are aligned.
偏波面保存光ファイバは、光信号の強弱のみならず光の
偏波面や位相の情報を安定に伝送することができるとい
う特徴がある。ところで、この特徴を長距離に亘って実
現させるためには、偏波面保存光ファイバ同志を固有偏
光軸が一致するように接続する必要がある。A polarization-maintaining optical fiber is characterized in that it can stably transmit information not only about the strength of an optical signal but also about the polarization plane and phase of light. By the way, in order to realize this feature over a long distance, it is necessary to connect polarization-maintaining optical fibers so that their characteristic polarization axes coincide.
しかしながら、通常の偏波面保存光ファイバにおいては
、固有偏光軸を外部より知ることが非常に困難であり、
従来は、被接続偏波面保存光ファイバからの出射光の偏
光状態を接続点にフィードバックしながら接続していた
。そのため、接続に時間がかかると同時に、接続用器材
のコストを考えると経済性が悪いという問題があった。However, in ordinary polarization-maintaining optical fibers, it is extremely difficult to know the intrinsic polarization axis from the outside.
Conventionally, connections were made while feeding back the polarization state of the light emitted from the polarization-maintaining optical fiber to be connected to the connection point. Therefore, there is a problem that it takes time to connect and at the same time, it is not economical considering the cost of the connection equipment.
本発明は上記に鑑みてなされたもので、その目的とする
ところは、第１．第２の偏波面保存光ファイバを固有偏
光軸同志が整合するように接続するときの作業性を大幅
に改善することができる偏波面保存光ファイバの接続方
法を提供することにある。The present invention has been made in view of the above, and its objectives are as follows: It is an object of the present invention to provide a method for connecting polarization-maintaining optical fibers, which can greatly improve workability when connecting second polarization-maintaining optical fibers so that their intrinsic polarization axes are aligned.
［発明の概要］
本発明の特徴は、第１の偏波面保存光ファイバの固有偏
光軸と第２の偏波面保存光ファイバの固有偏光軸とが一
致するように上記第１と第２の偏波面保存光ファイバを
接続するときに、上記第１の偏波面保存光ファイバの片
端の固有偏光軸に直線偏光を入射し、上記第１と第２の
偏波面保存光ファイバからのレーレ−散乱光の青４と方
向が一致するように接続して上記第１と第２の偏波面保
存光ファイバの固有偏光軸同志を整合させるようにした
点にある。[Summary of the Invention] A feature of the present invention is that the first and second polarizations are arranged so that the intrinsic polarization axis of the first polarization-maintaining optical fiber and the intrinsic polarization axis of the second polarization-maintaining optical fiber coincide. When connecting the wavefront-maintaining optical fibers, linearly polarized light is incident on the intrinsic polarization axis of one end of the first polarization-maintaining optical fiber, and Leley-scattered light from the first and second polarization-maintaining optical fibers is The unique polarization axes of the first and second polarization maintaining optical fibers are aligned by connecting them so that their directions coincide with those of the blue 4 shown in FIG.
［発明の実施例コ
以下本発明の方法の一実施例を第１図〜第３図を用いて
詳細に説明する。[Embodiment of the Invention] An embodiment of the method of the present invention will be described in detail below with reference to FIGS. 1 to 3.
＠１図は楕円ジャケット形偏波面保存光ファイバの断面
図で、１はコア、２はクラッド、３は榴円ジｐケット、
４はサポートであり、以下に説明する本発明の偏波面保
存光ファイバの接続方法においては、偏波面保存光ファ
イバとして、第１図に示す断面構造の偏波面保存光ファ
イバ５を用いた。Figure 1 is a cross-sectional view of an elliptical jacket type polarization maintaining optical fiber, where 1 is the core, 2 is the cladding, 3 is the elliptical jacket,
Reference numeral 4 denotes a support, and in the method for connecting polarization-maintaining optical fibers of the present invention described below, a polarization-maintaining optical fiber 5 having a cross-sectional structure shown in FIG. 1 was used as the polarization-maintaining optical fiber.
第２図は第１図の偏波面保存光ファイバ５の偏光の向き
とレーレ−散乱光の方向との関係の説明図で、偏光の向
き６に対してレーレ−散乱の方位は７となり、偏光と直
交した方位に光を散乱するという属性がある。FIG. 2 is an explanatory diagram of the relationship between the polarization direction of the polarization-maintaining optical fiber 5 in FIG. 1 and the direction of Leley-scattered light. It has the property of scattering light in a direction perpendicular to the direction.
第３図は本発明の偏波面保存光ファイバの接続方法の一
実施例を説明するための装置の概念図である。第３図に
おいて、８は入射直線偏光波を示し、偏波面保存光ファ
イバ５ａと５ｂを接続するときに、直線偏光波８を偏波
面保存光ファイバ５ａの固有偏光軸の方位に合わせて入
射する。一方、偏波面保存光ファイバ５ａと５ｂとの接
続は、背景光しゃ断箱９内で行うようにし、箱９内には
あらかじめ検出器１０ａ、１０ｂをそれぞれ偏波面保存
光ファイバ５ａ、５ｂのＺ軸方位に対する位置関係が等
しくなるように配置しておき、まず、偏波面保存光ファ
イバ５ａと５ｂとの端面とをＸ。FIG. 3 is a conceptual diagram of an apparatus for explaining an embodiment of the polarization maintaining optical fiber connection method of the present invention. In FIG. 3, reference numeral 8 indicates an incident linearly polarized light wave, and when connecting the polarization maintaining optical fibers 5a and 5b, the linearly polarized light wave 8 is made incident in alignment with the direction of the intrinsic polarization axis of the polarization maintaining optical fiber 5a. . On the other hand, the polarization-maintaining optical fibers 5a and 5b are connected in a background light blocking box 9, and detectors 10a and 10b are installed in advance in the box 9 to connect the Z-axis of the polarization-maintaining optical fibers 5a and 5b. First, the end faces of polarization-maintaining optical fibers 5a and 5b are aligned with X.
Ｙ、Ｚｈ向に微調整しであるてど光が結合されるように
仮接続する。次に、偏波面保存光ファイバ５ａに直線偏
光波８を入射したときに検出器１０ａが受ける偏波面保
存光ファイバ５ａからのレーレ−散乱光の受光量が最大
となるように偏波面保存光ファイバ５ａを回転する。そ
の後、検出器’１０ｂが受ける偏波面保存光ファイバ５
ｂからのレーレ−散乱光の受光量が最大となるように偏
波面保存光ファイバ５ｂを回転し、この状態で偏波面保
存光ファイバ５ａと５ｂとを確実に接続する。Make fine adjustments in the Y and Zh directions and temporarily connect so that the light is combined. Next, the polarization-maintaining optical fiber is adjusted such that when the linearly polarized light wave 8 is incident on the polarization-maintaining optical fiber 5a, the amount of Rayleigh scattered light received by the detector 10a from the polarization-maintaining optical fiber 5a is maximized. Rotate 5a. After that, the polarization maintaining optical fiber 5 is received by the detector '10b.
The polarization-maintaining optical fiber 5b is rotated so that the amount of Leley-scattered light received from source b is maximized, and in this state, the polarization-maintaining optical fibers 5a and 5b are reliably connected.
上記した本発明の接続方法の実施例によれば、第２図か
られかるように、偏波面保存光ファイバ５ａと５ｂとを
固定偏光軸同志が整合するように接続することができる
。また、検出器１０ａと１０ｂの読みの差から接続損失
を測定することができる。しかも、従来の方法に比較し
て確実、がっ、正確に接続することができ、その上、接
続時間が短絡され、作業性を大幅に向上することができ
る。また、遠端からの偏光状態のフィードバックが不要
となるので、接続工事費の低減をはかることができる。According to the embodiment of the connection method of the present invention described above, as shown in FIG. 2, the polarization maintaining optical fibers 5a and 5b can be connected so that their fixed polarization axes are aligned. Furthermore, the splice loss can be measured from the difference in readings between the detectors 10a and 10b. Furthermore, compared to conventional methods, it is possible to connect more reliably, firmly and accurately, and in addition, the connection time is shortened, greatly improving work efficiency. Further, since feedback of the polarization state from the far end is not required, connection construction costs can be reduced.
なお、偏波面保存光）？イバ５ａ、５ｂのクラツド材の
伝送損失に異方性をもたけである場合、固有偏光軸同志
の整合において、２つくＸ方位。In addition, polarization preserving light)? If the transmission loss of the cladding material of the fibers 5a and 5b has anisotropy, the two X directions will be present in the alignment of the natural polarization axes.
Ｙ方位）の固有偏光軸同志の整合も可能である。It is also possible to match the unique polarization axes in the Y direction).
［発明の効果］
以上説明したように、本発明によれば、第１゜第２の偏
波面保存光ファイバを固有偏光軸同志が整合するように
接続するときの作業性を大幅に改善することができ、し
かも、確実、正確に接続することができるという効果が
ある。[Effects of the Invention] As explained above, according to the present invention, it is possible to significantly improve the workability when connecting the first and second polarization-maintaining optical fibers so that their intrinsic polarization axes are aligned with each other. Moreover, it has the effect of being able to connect reliably and accurately.
第１図は楕円ジャフット形偏波面保存光ファイバの断面
図、第２図は第１図の偏波面保存光ファイバの偏光の向
きとレーレ散乱光の方向との関係の説明図、第３図は本
発明の偏波面保存光ファイバの接続方法の一実施例を説
明するための装置の概念図である。
５ａ 、 ５ｂ ；偏波面保存光ファイバ、８；直線偏
光波、９；背景光しゃ断箱、１０ａ 、１０ｂ ：検出
器。Figure 1 is a cross-sectional view of an elliptical Jahut type polarization-maintaining optical fiber, Figure 2 is an explanatory diagram of the relationship between the direction of polarization of the polarization-maintaining optical fiber of Figure 1 and the direction of Lehre scattered light, and Figure 3 is FIG. 1 is a conceptual diagram of an apparatus for explaining an embodiment of a polarization-maintaining optical fiber connection method of the present invention. 5a, 5b; polarization maintaining optical fiber; 8; linearly polarized light wave; 9; background light blocking box; 10a, 10b: detector.
Claims (1)
２の偏波面保存光ファイバの固有偏光軸とが一致するよ
うに前記第１と第２の偏波面保存光ファイバを接続する
ときに、前記第１の偏波面保存光ファイバの片端の固有
偏光軸に直線偏光を入射し、前記第１と第２の偏波面保
存光ファイバからのレーレ−散乱光の散乱方向が一致す
るように接続して前記第１と第２の偏波面保存光ファイ
バの固有偏光軸同志を整合させるようにすることを特徴
とする偏波面保存光ファイバの接続方法。(1) When connecting the first and second polarization-maintaining optical fibers so that the intrinsic polarization axis of the first polarization-maintaining optical fiber and the intrinsic polarization axis of the second polarization-maintaining optical fiber coincide. , linearly polarized light is incident on the intrinsic polarization axis of one end of the first polarization-maintaining optical fiber, so that the scattering directions of Lehley-scattered light from the first and second polarization-maintaining optical fibers coincide. 1. A method for connecting polarization-maintaining optical fibers, comprising: aligning the unique polarization axes of the first and second polarization-maintaining optical fibers by connecting them.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11624184A JPS60260010A (en) | 1984-06-06 | 1984-06-06 | Connecting method of polarization plane maintaining optical fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11624184A JPS60260010A (en) | 1984-06-06 | 1984-06-06 | Connecting method of polarization plane maintaining optical fiber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60260010A true JPS60260010A (en) | 1985-12-23 |
Family
ID=14682288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11624184A Pending JPS60260010A (en) | 1984-06-06 | 1984-06-06 | Connecting method of polarization plane maintaining optical fiber |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60260010A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63118107A (en) * | 1986-11-06 | 1988-05-23 | Nec Corp | Ferrule for optical fiber connection |
| JP2003043287A (en) * | 2001-07-31 | 2003-02-13 | Toshiba Mach Co Ltd | Clamping device of thin linear member, and angle regulating device |
| US10548489B2 (en) | 2014-10-31 | 2020-02-04 | Lake Region Medical, Inc. | Fiber Bragg grating multi-point pressure sensing guidewire with birefringent component |
| EP3212069B1 (en) * | 2014-10-31 | 2020-09-09 | Lake Region Medical, Inc. | Membrane-free fiber bragg grating pressure sensing guidewire |
-
1984
- 1984-06-06 JP JP11624184A patent/JPS60260010A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63118107A (en) * | 1986-11-06 | 1988-05-23 | Nec Corp | Ferrule for optical fiber connection |
| JP2003043287A (en) * | 2001-07-31 | 2003-02-13 | Toshiba Mach Co Ltd | Clamping device of thin linear member, and angle regulating device |
| JP4536965B2 (en) * | 2001-07-31 | 2010-09-01 | 東芝機械株式会社 | Clamp device for thin wire member |
| US10548489B2 (en) | 2014-10-31 | 2020-02-04 | Lake Region Medical, Inc. | Fiber Bragg grating multi-point pressure sensing guidewire with birefringent component |
| EP3212069B1 (en) * | 2014-10-31 | 2020-09-09 | Lake Region Medical, Inc. | Membrane-free fiber bragg grating pressure sensing guidewire |
| EP3212068B1 (en) * | 2014-10-31 | 2020-11-25 | Lake Region Medical, Inc. | Fiber bragg grating multi-point pressure sensing guidewire with birefringent component |
| US11291376B2 (en) | 2014-10-31 | 2022-04-05 | Lake Region Manufacturing, Inc. | Fiber bragg grating multi-point pressure sensing guidewire with birefringent component |
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