JPH04165324A - Light circuit device - Google Patents
Light circuit deviceInfo
- Publication number
- JPH04165324A JPH04165324A JP29284090A JP29284090A JPH04165324A JP H04165324 A JPH04165324 A JP H04165324A JP 29284090 A JP29284090 A JP 29284090A JP 29284090 A JP29284090 A JP 29284090A JP H04165324 A JPH04165324 A JP H04165324A
- Authority
- JP
- Japan
- Prior art keywords
- wavelength
- holder
- case
- optical fiber
- light beam
- 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
Links
- 239000013307 optical fiber Substances 0.000 claims abstract description 20
- 239000000835 fiber Substances 0.000 claims abstract description 12
- 230000003287 optical effect Effects 0.000 claims description 28
- 239000000853 adhesive Substances 0.000 abstract description 8
- 230000001070 adhesive effect Effects 0.000 abstract description 8
- 230000003595 spectral effect Effects 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000010365 information processing Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は光回路装置に関し、特に光フアイバケーブル通
信システムや、光情報処理システムに使用され、光受動
素子を内蔵した光回路装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an optical circuit device, and more particularly to an optical circuit device that is used in an optical fiber cable communication system or an optical information processing system and has a built-in optical passive element.
光フアイバ通信、光交換システムに於いて、伝送量を増
大するため、波長多重方式がよく使われている。波長多
重方式で使われる光回路装置の−つとして、波長合成器
及び波長分波器がある。従来の波長合成器の構成例を第
２図および第３図に示す。第２図において、参照番号２
は波長合成板、１２はフィルタホルダ、５２はケースを
、それぞれ示す。波長合成板２は接着剤９１でフィルタ
ホルダ１２に固定され、さらにフィルタホルダ１２も接
着剤９２でケース５２内に固定されている。波長λ１、
＾２の２波光を合成する場合、波長λ１の光信号１０１
は波長合成板２を透過し、波長λ２の光信号１０２は波
長合成板２により反射される。この２つが合成された光
信号１０３は、出力用光ファイバ８２に入力される。In optical fiber communications and optical switching systems, wavelength multiplexing is often used to increase the amount of transmission. Wavelength combiners and wavelength demultiplexers are examples of optical circuit devices used in wavelength multiplexing. Examples of the configuration of a conventional wavelength synthesizer are shown in FIGS. 2 and 3. In Figure 2, reference number 2
12 shows a wavelength combining plate, 12 a filter holder, and 52 a case, respectively. The wavelength combining plate 2 is fixed to the filter holder 12 with an adhesive 91, and the filter holder 12 is also fixed inside the case 52 with an adhesive 92. wavelength λ1,
When ^2 two-wave light is combined, the optical signal 101 with wavelength λ1 is
is transmitted through the wavelength combining plate 2, and the optical signal 102 having the wavelength λ2 is reflected by the wavelength combining plate 2. The optical signal 103 obtained by combining these two signals is input to the output optical fiber 82.
第３図では、波長λ２の光をホルダ１４上のミラーで反
射して波長合成板２に導いている。In FIG. 3, light with wavelength λ2 is reflected by a mirror on holder 14 and guided to wavelength combining plate 2. In FIG.
ところで、一般に波長合成板２の分光特性は、光の入射
角に依存する。そこで、第２図に示した従来の波長合成
器では、所定の分光特性を得る為に波長合成板２が固定
されたフィルタホルダ１２を回転調整することが必要に
なる。このため、通常は、微動台でフィルタホルダ１２
を支持し、若干台座と隙間をあけて、最適な角度と位置
調整を行う。第３図の光学系で同様な調整を行うには、
２つのホルダ１３．１４を交互に調整するので、多大な
調整時間を必要とする。又ホルダ１３．１４と台座の隙
間に接着剤を塗布した後、ホルダ１３．１４と台座とを
密着固定を行っているので、接着硬化に長時間を要し、
信頼性も損なわれるという欠点がある。By the way, the spectral characteristics of the wavelength combining plate 2 generally depend on the incident angle of light. Therefore, in the conventional wavelength combiner shown in FIG. 2, it is necessary to rotate and adjust the filter holder 12 to which the wavelength combining plate 2 is fixed in order to obtain predetermined spectral characteristics. For this reason, the filter holder 12 is usually
Support it, leave a slight gap between it and the pedestal, and adjust the optimal angle and position. To make a similar adjustment with the optical system shown in Figure 3,
Since the two holders 13, 14 are adjusted alternately, a considerable amount of adjustment time is required. Furthermore, since the holder 13.14 and the pedestal are closely fixed after applying adhesive to the gap between the holder 13.14 and the pedestal, it takes a long time for the adhesive to harden.
This has the disadvantage that reliability is also impaired.
本発明では、波長合成板等の光受動素子の角度と位置の
調整を容易に且つ短時間に行い、高い熱的耐環境性をも
つ光回路装置を実現することを目的とする。An object of the present invention is to easily adjust the angle and position of an optical passive element such as a wavelength combining plate in a short time, and to realize an optical circuit device having high thermal environment resistance.
本発明の光回路装置は、第１の波長の光ビームと第２の
波長の光ビームとが出射される第１の光ファイバと、前
記第１の波長の光ビームを透過させ前記第２の波長の光
ビームを反射させる平板光学フィルタと、前記第１の波
長の光ビームが入射する第２の光ファイバと、前記第２
の波長の光ビームが入射する第３の光ファイバとを有し
て成る光回路装置において、
前記平板光学フィルタを保持したホルダを係止させて光
ビームの入射角度を調整可能な調整用構造と、前記平板
光学フィルタの光ビーム反射点を中心とする円弧状に形
成され、該円弧に沿って径方向の貫通穴を設けたガイド
用構造とを設けたケースと、前記第３の光ファイバの一
端を保持させ前記ガイド用構造の円弧に沿って位置調整
して固定するためのファイバホルダとを備えていること
を特徴とする。The optical circuit device of the present invention includes a first optical fiber from which a light beam of a first wavelength and a light beam of a second wavelength are emitted, and a second fiber that transmits the light beam of the first wavelength. a flat plate optical filter that reflects the light beam of the first wavelength; a second optical fiber into which the light beam of the first wavelength is incident; and the second optical fiber.
a third optical fiber into which a light beam of a wavelength is incident; , a case provided with a guide structure formed in an arc shape centered on the light beam reflection point of the flat plate optical filter, and having a radial through hole provided along the arc; The present invention is characterized by comprising a fiber holder for holding one end and adjusting and fixing the position along the arc of the guide structure.
次に、本発明について図面を参照して説明する。 Next, the present invention will be explained with reference to the drawings.
第１図（ａ）、（ｂ）は本発明の一実施例を示す平面図
、斜視図である。同図において、参照番号１はフィルタ
ホルダ、２は波長合成板、９は接着剤、５はケース、１
０１は短波長（λ１）の光線、１０２は長波長（λ２）
の光線、１０３は波長合成されている光線（波長λｌ＋
λ２）である。ケース５には、フィルタホルダ１と嵌合
する穴１１１を設けである。波長合成板２を接着剤９で
固定しである円柱状のフィルタホルダ１を穴１１１に挿
入後、フィルタホルダ１を回転調整し、光線１０３の波
長合成板２に対する入射角を変えることで、２つの波長
に対する透過・反射帯域の分光特性を容易に調整できる
。この調整後、フィルタホルダ１とケース５の穴１１１
との嵌合部分をレーザ溶接により固定する。FIGS. 1(a) and 1(b) are a plan view and a perspective view showing an embodiment of the present invention. In the figure, reference number 1 is a filter holder, 2 is a wavelength combining plate, 9 is an adhesive, 5 is a case, 1
01 is short wavelength (λ1) light ray, 102 is long wavelength (λ2)
The light ray 103 is the wavelength-synthesized light ray (wavelength λl+
λ2). The case 5 is provided with a hole 111 that fits into the filter holder 1. After fixing the wavelength combining plate 2 with the adhesive 9 and inserting the cylindrical filter holder 1 into the hole 111, the rotation of the filter holder 1 is adjusted to change the incident angle of the light ray 103 to the wavelength combining plate 2. The spectral characteristics of the transmission and reflection bands for each wavelength can be easily adjusted. After this adjustment, the filter holder 1 and the hole 111 of the case 5
The mating part is fixed by laser welding.
次に波長合成板２により反射された長波長（λ２）の光
線１０２を光ファイバ８３へ入力させるためファイバホ
ルダ３３を位置調整する。あらかじめ光ファイバ８３の
端部にはファイバ端末７３を構成してあり、平行ビーム
を形成するためのレンズ４３とともにファイバホルダ３
３に固定されている。ファイバホルダ３３をケース５の
側面部に設けたガイド用の溝６にはめ込み、光線１０２
が光ファイバ８３に最適結合されるように、図中の矢印
方向に調整したあと、レーザ溶接により固定する。ここ
で、ケース５の７１１６は、波長合成板２から半径Ｒの
円弧状に形成されており、ファイバホルダ３３を光線１
０３と光線１０２とのなす角で３０度から９０度まで調
整できる範囲に設けである。すなわち、光線１０３の波
長合成板２に対する入射角を１５度から４５度まで調整
可能であり、波長合成板２に対しては充分波長特性の調
整範囲をカバーしている。Next, the position of the fiber holder 33 is adjusted in order to input the long wavelength (λ2) light beam 102 reflected by the wavelength combining plate 2 into the optical fiber 83. A fiber terminal 73 is configured in advance at the end of the optical fiber 83, and the fiber holder 3 is attached to the lens 43 for forming a parallel beam.
It is fixed at 3. The fiber holder 33 is fitted into the guide groove 6 provided on the side surface of the case 5, and the light beam 102
After adjusting in the direction of the arrow in the figure so that it is optimally coupled to the optical fiber 83, it is fixed by laser welding. Here, 7116 of the case 5 is formed in an arc shape with a radius R from the wavelength combining plate 2, and connects the fiber holder 33 to the light beam 1.
The angle formed by the light beam 102 and the light beam 102 is set within a range that can be adjusted from 30 degrees to 90 degrees. That is, the angle of incidence of the light ray 103 on the wavelength combining plate 2 can be adjusted from 15 degrees to 45 degrees, which sufficiently covers the adjustment range of wavelength characteristics for the wavelength combining plate 2.
なお、本実施例では、波長分波器の場合を例示説明した
が、光分岐／合成、分波／合波、光減衰、波長選択（フ
ィルタ）等の光受動素子すべてに有効であることはもち
ろんである。In this example, the case of a wavelength demultiplexer was explained as an example, but it is effective for all optical passive devices such as optical branching/combining, demultiplexing/combining, optical attenuation, wavelength selection (filter), etc. Of course.
以上説明したように本発明は、光受動素子をとりつける
円筒形ホルダと嵌合する穴をケースに設け、且つ光受動
素子と結合される光ファイバのホルダをガイドする溝を
ケースに設けて、最適結合される位置を調整できるよう
にすることにより、光受動素子の角度調整を簡単化でき
、調整時間を短縮できると共に、レーザ溶接固定工法が
導入可能になり、耐環境性等の信頼性向上が図れるとい
う効果がある。As explained above, the present invention provides a case with a hole that fits into a cylindrical holder for attaching an optical passive element, and a groove that guides an optical fiber holder to be coupled with an optical passive element. By making it possible to adjust the bonding position, it is possible to simplify the angle adjustment of the optical passive element, shorten the adjustment time, and also make it possible to introduce a laser welding fixing method, which improves reliability such as environmental resistance. It has the effect of being able to
第１図（ａ）、（ｂ）は本発明の実施例を示す平面図、
斜視図、第２図、第３図は従来の光回路装置の平面図で
ある。
１．１２．１４・・・フィルタホルダ、２・・・波長合
成板、３１．３２．３３・・・ファイバホルダ、４１．
４２．４３・・・レンズ、５．５２・・・ケース、６・
・・溝、７１．７２．７３・・・ファイバ端末、８１．
８２．８３・・・光ファイバ、９．９１．９２・・・接
着剤、１０１．１０２．１０３・・・光線、１１１・・
・穴。FIGS. 1(a) and 1(b) are plan views showing embodiments of the present invention,
The perspective view, FIGS. 2 and 3 are plan views of conventional optical circuit devices. 1.12.14...Filter holder, 2...Wavelength combining plate, 31.32.33...Fiber holder, 41.
42.43...Lens, 5.52...Case, 6.
...Groove, 71.72.73...Fiber terminal, 81.
82.83...Optical fiber, 9.91.92...Adhesive, 101.102.103...Light ray, 111...
·hole.
Claims (1)
出射される第１の光ファイバと、前記第１の波長の光ビ
ームを透過させ前記第２の波長の光ビームを反射させる
平板光学フィルタと、前記第１の波長の光ビームが入射
する第２の光ファイバと、前記第２の波長の光ビームが
入射する第３の光ファイバとを有して成る光回路装置に
おいて、 前記平板光学フィルタを保持したホルダを係止させて光
ビームの入射角度を調整可能な調整用構造と、前記平板
光学フィルタの光ビーム反射点を中心とする円弧状に形
成され該円弧に沿って径方向の貫通穴を設けたガイド用
構造とを設けたケースと、前記第３の光ファイバの一端
を保持させ前記ガイド用構造の円弧に沿つて位置調整し
て固定するためのファイバホルダとを備えていることを
特徴とする光回路装置。 ２、前記ケースの前記調整用構造は、円柱状の前記ホル
ダと嵌合するよう該ケースに形成した穴である請求項１
記載の光回路装置。 ３、前記ケースの前記ガイド用構造は、該ケースの側面
に形成した円弧状の溝である請求項１記載の光回路装置
。[Scope of Claims] 1. A first optical fiber from which a light beam of a first wavelength and a light beam of a second wavelength are emitted; and a first optical fiber that transmits the light beam of the first wavelength. a flat plate optical filter that reflects a light beam of the wavelength, a second optical fiber into which the light beam of the first wavelength enters, and a third optical fiber into which the light beam of the second wavelength enters. An optical circuit device comprising: an adjustment structure capable of adjusting the incident angle of a light beam by locking a holder holding the flat optical filter; a case provided with a guiding structure having a radial through hole formed along the circular arc; and a case that holds one end of the third optical fiber and adjusts the position along the circular arc of the guiding structure and fixes it. An optical circuit device characterized by comprising a fiber holder for. 2. Claim 1, wherein the adjustment structure of the case is a hole formed in the case so as to fit with the cylindrical holder.
The optical circuit device described. 3. The optical circuit device according to claim 1, wherein the guide structure of the case is an arcuate groove formed on a side surface of the case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29284090A JP2900583B2 (en) | 1990-10-30 | 1990-10-30 | Optical circuit device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29284090A JP2900583B2 (en) | 1990-10-30 | 1990-10-30 | Optical circuit device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04165324A true JPH04165324A (en) | 1992-06-11 |
| JP2900583B2 JP2900583B2 (en) | 1999-06-02 |
Family
ID=17787044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29284090A Expired - Lifetime JP2900583B2 (en) | 1990-10-30 | 1990-10-30 | Optical circuit device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2900583B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016138934A (en) * | 2015-01-26 | 2016-08-04 | 日本電気硝子株式会社 | Optical prism |
-
1990
- 1990-10-30 JP JP29284090A patent/JP2900583B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016138934A (en) * | 2015-01-26 | 2016-08-04 | 日本電気硝子株式会社 | Optical prism |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2900583B2 (en) | 1999-06-02 |
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