JPH0921935A - Optical module and its production - Google Patents
Optical module and its productionInfo
- Publication number
- JPH0921935A JPH0921935A JP17207995A JP17207995A JPH0921935A JP H0921935 A JPH0921935 A JP H0921935A JP 17207995 A JP17207995 A JP 17207995A JP 17207995 A JP17207995 A JP 17207995A JP H0921935 A JPH0921935 A JP H0921935A
- Authority
- JP
- Japan
- Prior art keywords
- welding
- optical
- mark
- optical module
- ball lens
- 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.)
- Withdrawn
Links
Landscapes
- Optical Couplings Of Light Guides (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、光素子とこの光素
子から発した光を例えば光ファイバー等に結合させるた
めの光学素子とが組み込まれた光モジュール及びその作
製方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical module incorporating an optical element and an optical element for coupling light emitted from the optical element to, for example, an optical fiber, and a method for manufacturing the same.
【０００２】[0002]
【従来の技術】例えば光通信においては、光源・受信器
・光増幅器などといった光導波路素子と情報伝達媒体と
しての光ファイバとを光学的に結合させるために光モジ
ュールが用いられている。この様な光モジュールにおい
ては光導波路と光ファイバの光結合が高効率で行なわ
れ、しかも経時変化が少ないようになされることが重要
な要件となる。2. Description of the Related Art In optical communication, for example, an optical module is used to optically couple an optical waveguide element such as a light source, a receiver, an optical amplifier, and an optical fiber as an information transmission medium. In such an optical module, it is an important requirement that the optical coupling between the optical waveguide and the optical fiber be performed with high efficiency and that the change with time be small.
【０００３】そのため、従来の光モジュールにおいて
は、図２のようにサブキャリア３にボールレンズホルダ
４を固定するために、レーザ溶接法を採用していた。図
２において（ａ）は光モジュールの平面図を、（ｂ）は
側面図をそれぞれ示す。図２において、１は半導体レー
ザ等の光素子、２は光素子から発した光を例えば光ファ
イバ等に結合する光学部品の一例であるボールレンズを
示す。ボールレンズ２はボールレンズホルダ４に組み込
まれ、ボールレンズホルダ４は、最適な光結合が行われ
るような位置にボールレンズ２を置き、その両側面を溶
接ポイント５においてサブキャリア３に溶接することに
よって固定されている。Therefore, in the conventional optical module, the laser welding method is used to fix the ball lens holder 4 to the subcarrier 3 as shown in FIG. 2A is a plan view of the optical module, and FIG. 2B is a side view thereof. In FIG. 2, 1 is an optical element such as a semiconductor laser, and 2 is a ball lens which is an example of an optical component that couples light emitted from the optical element to, for example, an optical fiber. The ball lens 2 is incorporated into the ball lens holder 4, and the ball lens holder 4 places the ball lens 2 at a position where optimum optical coupling is performed, and welds both side surfaces thereof to the subcarrier 3 at welding points 5. Is fixed by.
【０００４】ボールレンズ２の調整にはレーザを発光さ
せレンズを透過した光をモニターすることで位置決めを
した。従って固定作業にはレーザが載るサブキャリアと
レンズホルダとを保持し、相対的に動かすことで調整し
ていた。溶接ヘッドの光軸はサブキャリアとレンズホル
ダが接触する面と同一面内にあり、レンズホルダの側面
には垂直な位置にある。For the adjustment of the ball lens 2, a laser is emitted and the light transmitted through the lens is monitored for positioning. Therefore, in the fixing work, the subcarrier on which the laser is mounted and the lens holder are held and adjusted by moving them relatively. The optical axis of the welding head is in the same plane as the surface where the subcarrier and the lens holder are in contact with each other, and is in a position perpendicular to the side surface of the lens holder.
【０００５】[0005]
【発明が解決しようとする課題】上記従来例において
は、チップのダイボンディングの状態や光導波路の形態
によってボールレンズの最適な位置には幅があり常に一
定の位置に最適点が存在しなかった。このため溶接ヘッ
ドの調整を行う必要が生じた時、正確なヘッドの位置調
整は非常に手間のかかる作業であった。また溶接ヘッド
が完全に対称な位置にない場合、例えば図２に示すよう
にレーザ溶接の光軸がΔＰずれている場合などはヒート
ショックに偏りを生じて、ボールレンズなどの光部品が
溶接時に最適な位置よりずれてしまうという問題があっ
た。In the above conventional example, the optimum position of the ball lens has a width depending on the die-bonding state of the chip and the form of the optical waveguide, and the optimum point does not always exist at a fixed position. . Therefore, when it becomes necessary to adjust the welding head, accurate adjustment of the position of the head is a very troublesome work. Further, when the welding head is not in a completely symmetrical position, for example, when the optical axis of laser welding is deviated by ΔP as shown in FIG. There was a problem that it was displaced from the optimum position.
【０００６】[0006]
【課題を解決するための手段】本発明は、光学部品を保
持するホルダに予めその溶接ポイントを示す印を設け、
この印に基づいて溶接位置を合わせることによって最適
な位置にホルダを固定することができる。つまり、いか
なる作業工程が途中に入ろうとも溶接段階において溶接
ヘッドを適切な位置に調整することが可能であり、ヒー
トショックを相殺することが可能となる。また専用の治
具などを用いた溶接ヘッドの位置調整の作業も省略され
る。According to the present invention, a holder for holding an optical component is provided with a mark indicating its welding point in advance.
The holder can be fixed at an optimum position by aligning the welding positions based on this mark. That is, the welding head can be adjusted to an appropriate position in the welding stage regardless of which work process is in the middle, and the heat shock can be offset. Also, the work of adjusting the position of the welding head using a dedicated jig or the like is omitted.
【０００７】[0007]
【発明の実施の形態】図１は、本発明の実施態様の特徴
を最も良く表す図であり、（ａ）は光モジュールの斜視
図、（ｂ）は平面図、（ｃ）は側面図をそれぞれ示す。
同図において１は光導波路を有する半導体レーザ等の光
素子であり、２は光学的な結合を行うための光学部品で
例えばボールレンズである。３は光素子、ボールレンズ
などを実装するための基板でサブキャリアである。４は
溶接される部品で例えばボールレンズが組み立てられて
いるボールレンズホルダである。５は溶接ポイントを示
している。ここでボールレンズホルダ４には６で示され
ているように溶接ポイントを示す位置決め用印がけがき
線によって明示されている。溶接ヘッドは付属の観察系
でけがき線にモニター上の位置とピントから溶接位置を
合せ、溶接する。1 is a view best showing the features of an embodiment of the present invention. (A) is a perspective view of an optical module, (b) is a plan view, and (c) is a side view. Shown respectively.
In the figure, 1 is an optical element such as a semiconductor laser having an optical waveguide, and 2 is an optical component for performing optical coupling, for example, a ball lens. A subcarrier 3 is a substrate for mounting an optical element, a ball lens, and the like. Reference numeral 4 denotes a ball lens holder in which a ball lens is assembled, which is a component to be welded. Reference numeral 5 indicates a welding point. Here, the ball lens holder 4 is clearly indicated by a marking line for positioning indicating a welding point as indicated by 6. The welding head uses the observation system attached to align the marking line with the position on the monitor and from the focus to perform welding.
【０００８】溶接ポイントを示す印は、上記のような線
状に限らず、点状、十字状でも構わない。また、印を設
ける手段としては、上記のようなけがきの他にも、印刷
等で設けても良い。The mark indicating the welding point is not limited to the linear shape as described above, but may be a dot shape or a cross shape. As means for providing the mark, printing or the like may be used in addition to the above-mentioned scribing.
【０００９】[0009]
【発明の効果】本発明によれば、溶接ヘッドが適切な位
置に調整されるため、溶接時の衝撃を最小にすることが
できる。また作業工程が複雑で、その都度溶接ヘッドの
アライメントを調整するような場合にも、溶接ヘッドの
調整作業と溶接作業をまとめてできる。According to the present invention, since the welding head is adjusted to an appropriate position, the impact during welding can be minimized. Even when the work process is complicated and the alignment of the welding head is adjusted each time, the welding head adjustment work and the welding work can be performed together.
【図１】本発明の実施態様を示した概略図である。FIG. 1 is a schematic diagram showing an embodiment of the present invention.
【図２】従来の光モジュールの一例を示す概略図であ
る。FIG. 2 is a schematic view showing an example of a conventional optical module.
１ 光素子 ２ ボールレンズ ３ サブキャリア ４ ボールレンズホルダ ５ 溶接ポイント ６ 位置決め用印 1 Optical element 2 Ball lens 3 Sub carrier 4 Ball lens holder 5 Welding point 6 Positioning mark
Claims (7)
光素子から発した光が導かれる光学部品を保持し、前記
サブキャリアに溶接によって取り付けられたホルダとか
ら成る光モジュールにおいて、前記ホルダに予めその溶
接ポイントを示す印が設けられていることを特徴とする
光モジュール。1. An optical module comprising a subcarrier holding an optical element and a holder holding an optical component to which light emitted from the optical element is guided and attached to the subcarrier by welding. An optical module characterized in that a mark indicating the welding point is provided in advance.
モジュール。2. The optical module according to claim 1, wherein the mark is linear.
の光モジュール。3. The optical module according to claim 2, wherein the marking is a marking line.
モジュール。4. The optical module according to claim 1, wherein the mark has a dot shape.
光モジュール。5. The optical module according to claim 1, wherein the mark has a cross shape.
求項１に記載の光モジュール。6. The optical module according to claim 1, wherein the mark is provided by printing.
光素子から発した光が導かれる光学部品を保持したホル
ダを溶接によって取り付ける光モジュールの作製方法に
おいて、前記ホルダに予めその溶接ポイントを示す印を
設け、この印に基づいて溶接位置を合わせることを特徴
とする光モジュールの作製方法。7. In a method of manufacturing an optical module in which a holder holding an optical component for guiding light emitted from the optical element is attached to a subcarrier holding the optical element by welding, the welding point is indicated in advance on the holder. A method for manufacturing an optical module, characterized in that a mark is provided and a welding position is adjusted based on the mark.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17207995A JPH0921935A (en) | 1995-07-07 | 1995-07-07 | Optical module and its production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17207995A JPH0921935A (en) | 1995-07-07 | 1995-07-07 | Optical module and its production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0921935A true JPH0921935A (en) | 1997-01-21 |
Family
ID=15935151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17207995A Withdrawn JPH0921935A (en) | 1995-07-07 | 1995-07-07 | Optical module and its production |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0921935A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100454972B1 (en) * | 2002-12-31 | 2004-11-06 | 삼성전자주식회사 | Passive alignment device for optical element |
-
1995
- 1995-07-07 JP JP17207995A patent/JPH0921935A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100454972B1 (en) * | 2002-12-31 | 2004-11-06 | 삼성전자주식회사 | Passive alignment device for optical element |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20021001 |