JPH0442104A - Wavelength-divisional multiplex transmission and reception module - Google Patents
Wavelength-divisional multiplex transmission and reception moduleInfo
- Publication number
- JPH0442104A JPH0442104A JP2149369A JP14936990A JPH0442104A JP H0442104 A JPH0442104 A JP H0442104A JP 2149369 A JP2149369 A JP 2149369A JP 14936990 A JP14936990 A JP 14936990A JP H0442104 A JPH0442104 A JP H0442104A
- Authority
- JP
- Japan
- Prior art keywords
- lens
- light
- collimator
- emitting element
- optical fiber
- 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
- 230000005540 biological transmission Effects 0.000 title description 2
- 239000013307 optical fiber Substances 0.000 claims abstract description 18
- 230000003287 optical effect Effects 0.000 claims abstract description 5
- 238000005498 polishing Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002457 bidirectional effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
Landscapes
- Optical Communication System (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は双方向伝送用波長分割多重モジュールに関し、
特に、発光・受光素子を一体化したモジュールに関する
。[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a wavelength division multiplexing module for bidirectional transmission,
In particular, it relates to a module that integrates light emitting and light receiving elements.
従来、波長分割多重送受信モジュール番ヨブリズムと干
渉膜フィルタを用いている。たとえ１第３図に示すよう
に発光素子１とレンズ５力１らなる発光素子コリメータ
９と、受光素子２とレンズ６からなる受光素子コリメー
タ１０と、光ファイノく３とレンズ７からなる光ファイ
ノ＜コリ） −夕１１と、プリズム４と干渉膜フィルタ
８とからなり、発光素子コリメータ９から出射した光（
波長λ１）は干渉膜フィルタ８とプリズム４を経て、光
フアイバコリメータ１１に結合し、光ファイｔ＜ ：Ｉ
リメータ１１から出射した光（波長λ２）をよ、プリ
ズム４を経て干渉膜フィルタ８で反射し、受光素子コリ
メータ１０に結合していた。Conventionally, wavelength division multiplexing transmitter/receiver module numbers and interference film filters have been used. As shown in FIG. 1, a light emitting element collimator 9 is made up of a light emitting element 1 and a lens 5, a light receiving element collimator 10 is made up of a light receiving element 2 and a lens 6, and an optical fiber is made up of an optical fiber 3 and a lens 7. <Collision) - The light (
The wavelength λ1) passes through the interference film filter 8 and the prism 4, and is coupled to the optical fiber collimator 11, and the optical fiber t< :I
The light (wavelength λ2) emitted from the remeter 11 passes through the prism 4, is reflected by the interference film filter 8, and is coupled to the light receiving element collimator 10.
従来の波長分割多重送受信モジュールは、合分波素子と
して、プリズムと干渉膜フィルタを用いているので、部
品点数が多くなり光軸調整が複雑であり、光軸調整簡素
化のためには、非常に寸法精度の高いプリズムが１個な
いし２個必要でコストダウンの妨げになるという欠点が
ある。Conventional wavelength division multiplexing transmitter/receiver modules use prisms and interference film filters as multiplexing/demultiplexing elements, which requires a large number of parts and complicates optical axis adjustment. The disadvantage is that one or two prisms with high dimensional accuracy are required, which hinders cost reduction.
本発明の波長分割多重送受信モジュールは、発光素子と
レンズからなる発光素子コリメータと、受光素子のレン
ズからなる受光素子コリメータと、光ファイバとレンズ
からなる光ファイバコリメータとを含み、発光素子コリ
メータのレンズの先端を斜めに研磨し、その面に干渉膜
フィルタを形成することにより、従来のプリズムと干渉
膜フィルタからなる合分波機能を持たせている。このよ
うにして、従来必要であったプリズムが不要となる。The wavelength division multiplexing transmitting/receiving module of the present invention includes a light emitting element collimator consisting of a light emitting element and a lens, a light receiving element collimator consisting of a light receiving element lens, and an optical fiber collimator consisting of an optical fiber and a lens. By polishing the tip of the prism diagonally and forming an interference film filter on that surface, it has the multiplexing and demultiplexing function of a conventional prism and interference film filter. In this way, the prism that was previously required is no longer necessary.
口実箆例〕 次に本発明の実施例を図面を参照して説明する。Example of pretext Next, embodiments of the present invention will be described with reference to the drawings.
第１図は本発明の一実施例を示す平面図である。FIG. 1 is a plan view showing one embodiment of the present invention.
図において、発光素子コリメータ９の発光素子■から出
波した光（波長λ１）をコリメート光にするためのレン
ズ５の先端が斜めに研磨され、その面に干渉膜フィルタ
８が形成され、合分波素子の機能を持たせている。発光
素子１から出射した波長λ１の光はレンズ５によってコ
リメート光となり、光ファイバコリメータＩＩのレンズ
７によって集光され光ファイバ３に結合する。また、光
ファイバ３から出射した波長λ２の光はレンズ７によっ
てコリメート光となり、レンズ５の斜め研磨面上に形成
された干渉膜フィルタ８で反射し、受光素子コリメータ
１０のレンズ６によって集光され受光素子２に結合する
。In the figure, the tip of a lens 5 for collimating the light (wavelength λ1) emitted from the light emitting element (2) of the light emitting element collimator 9 is polished obliquely, and an interference film filter 8 is formed on that surface. It has the function of a wave element. Light with a wavelength λ1 emitted from the light emitting element 1 is collimated by the lens 5, collected by the lens 7 of the optical fiber collimator II, and coupled to the optical fiber 3. Further, the light with wavelength λ2 emitted from the optical fiber 3 is collimated by the lens 7, reflected by the interference film filter 8 formed on the obliquely polished surface of the lens 5, and condensed by the lens 6 of the light receiving element collimator 10. It is coupled to the light receiving element 2.
第２図は本発明その他の実施例を示す平面図である。図
において、第１図と違う点はレンズ６及びレンズ７の端
面も、レンズ５と同様に斜め研磨されていることで、そ
の他は第１図と同じである。FIG. 2 is a plan view showing another embodiment of the present invention. The difference between the figure and FIG. 1 is that the end surfaces of lenses 6 and 7 are also obliquely polished like lens 5, and other aspects are the same as in FIG. 1.
これにより発光素子コリメータ９と受光素子コリメータ
１０と光ファイバコリメータ１１の軸は互いに直角ない
し平行になり、組み立て性が良くなる。This makes the axes of the light emitting element collimator 9, the light receiving element collimator 10, and the optical fiber collimator 11 perpendicular or parallel to each other, improving ease of assembly.
以上説明したように、本発明は、発光素子コリメータと
受光素子コリメータと光ファイバコリメータとから構成
される波長分割多重送受信モジュールにおいて、発光素
子コリメータのレンズ先端を斜めに研磨し、その面に干
渉膜フィルタを形成することにより、プリズムが不要と
なり、低コストでの光軸調整の簡素化が図れる効果があ
る。As explained above, the present invention provides a wavelength division multiplexing transmitter/receiver module composed of a light emitting element collimator, a light receiving element collimator, and an optical fiber collimator, in which the tip of the lens of the light emitting element collimator is polished obliquely, and an interference film is coated on that surface. Forming a filter eliminates the need for a prism, which has the effect of simplifying optical axis adjustment at low cost.
第１図は本発明の一実施例を示す平面図、第２図は本発
明のその他の実施例を示す平面図、第３図は従来の波長
分割多重送受信モジュールを示す平面図である。
１・・・・・・発光素子、２・・・・・・受光素子、３
・・・・・・光ファイバ ４・・・、・プリズム、５．
６．７・・・・・・レンズ、８・・・・・・干渉膜フィ
ルタ、９・・・・・発光素子コリメータ、１０・・・・
・・受光素子コリメータ、１１・・・・・光ファイバコ
リメータ。
代理人 弁理士 内 原 音
箒 ｌ 図
ｑ融事Ｊブリ×−ダ
第
ガ
羊
図FIG. 1 is a plan view showing one embodiment of the present invention, FIG. 2 is a plan view showing another embodiment of the invention, and FIG. 3 is a plan view showing a conventional wavelength division multiplexing transceiver module. 1... Light emitting element, 2... Light receiving element, 3
...Optical fiber 4... Prism 5.
6.7...Lens, 8...Interference film filter, 9...Light emitting element collimator, 10...
... Light receiving element collimator, 11... Optical fiber collimator. Agent Patent Attorney Uchihara Onhoki l Figure q Finance J Buri
Claims (2)
レンズからなる発光素子コリメータと、受光素子と第２
のレンズからなる受光素子コレメータと、光ファイバと
第３のレンズからなる光ファイバコリメータとが互いに
光学結合し、前記第１のレンズの先端がレンズの光軸に
対して斜めに研磨され、その面に前記干渉膜フィルタが
形成され、その干渉膜フィルタで合分波機能を持たせた
分割多重送受信モジュール。(1) A light-emitting element collimator consisting of a light-emitting element and a first lens that converts its emitted light into parallel light; a light-receiving element and a second lens;
A light-receiving element collimator consisting of a lens and an optical fiber collimator consisting of an optical fiber and a third lens are optically coupled to each other, the tip of the first lens is polished obliquely to the optical axis of the lens, and the surface thereof is A division multiplexing transmitting/receiving module in which the interference film filter is formed and the interference film filter has a multiplexing/demultiplexing function.
ンズの端面がそれぞれのレンズの光軸に対して斜めにな
っていることを特徴とする特許請求の範囲第（１）項記
載の波長分割多重送受信モジュール。(2) The end surfaces of the first lens, the second lens, and the third lens are oblique with respect to the optical axis of each lens. wavelength division multiplexing transceiver module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2149369A JPH0442104A (en) | 1990-06-07 | 1990-06-07 | Wavelength-divisional multiplex transmission and reception module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2149369A JPH0442104A (en) | 1990-06-07 | 1990-06-07 | Wavelength-divisional multiplex transmission and reception module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0442104A true JPH0442104A (en) | 1992-02-12 |
Family
ID=15473634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2149369A Pending JPH0442104A (en) | 1990-06-07 | 1990-06-07 | Wavelength-divisional multiplex transmission and reception module |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0442104A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120003067A1 (en) * | 2010-06-01 | 2012-01-05 | Nexus Biosystems, Inc. | Automated Storage System for High Density Storage |
| US9975697B2 (en) | 2009-02-04 | 2018-05-22 | I-Collector Holding B.V. | Storage and order collection system |
-
1990
- 1990-06-07 JP JP2149369A patent/JPH0442104A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9975697B2 (en) | 2009-02-04 | 2018-05-22 | I-Collector Holding B.V. | Storage and order collection system |
| US20120003067A1 (en) * | 2010-06-01 | 2012-01-05 | Nexus Biosystems, Inc. | Automated Storage System for High Density Storage |
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