JPH01102843U - - Google Patents
Info
- Publication number
- JPH01102843U JPH01102843U JP19955387U JP19955387U JPH01102843U JP H01102843 U JPH01102843 U JP H01102843U JP 19955387 U JP19955387 U JP 19955387U JP 19955387 U JP19955387 U JP 19955387U JP H01102843 U JPH01102843 U JP H01102843U
- Authority
- JP
- Japan
- Prior art keywords
- waveguide
- optical
- optical waveguide
- face
- coupling portion
- 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
- 230000003287 optical effect Effects 0.000 claims description 29
- 230000008878 coupling Effects 0.000 claims description 7
- 238000010168 coupling process Methods 0.000 claims description 7
- 238000005859 coupling reaction Methods 0.000 claims description 7
- 239000000835 fiber Substances 0.000 claims description 4
- 239000000758 substrate Substances 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
Landscapes
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
- Testing Of Optical Devices Or Fibers (AREA)
Description
第１図〜第５図は本考案の実施例を示し、第１
図は本考案による光パルス試験器の基本構成の平
面図であり、第２図ａ，ｂはリツジ型曲り導波路
の平面図と断面図であり、第３図ａ，ｂは屈曲型
テーパ状導波路の平面図と断面図であり、第４図
は反射型導波路の平面図であり、第５図はリツジ
型曲り導波路を用いた導波路型光スイツチを備え
た光パルス試験器の基本構成の平面図であり、第
６図は従来の光パルス試験器の基本構成の平面図
である。
１……導波路型光スイツチ、２……導波路基板
、３，４……光導波路、５……電極、６……結合
部、７，９……偏波面保存フアイバー。
1 to 5 show embodiments of the present invention.
The figure is a plan view of the basic configuration of the optical pulse tester according to the present invention, Figures 2a and b are a plan view and cross-sectional view of a ridge-type curved waveguide, and Figures 3a and b are a curved tapered waveguide. FIG. 4 is a plan view of a reflective waveguide, and FIG. 5 is a diagram of an optical pulse tester equipped with a waveguide-type optical switch using a rigid curved waveguide. FIG. 6 is a plan view of the basic configuration of a conventional optical pulse tester. DESCRIPTION OF SYMBOLS 1... Waveguide type optical switch, 2... Waveguide substrate, 3, 4... Optical waveguide, 5... Electrode, 6... Coupling part, 7, 9... Polarization maintaining fiber.
Claims (1)
端面において光源側へ接続されそれと対向するも
う１つの端面において被検査フアイバー側へ接続
される直線状の第１の光導波路と、第１の光導波
路に沿つて設けられ導波路基板中央の結合部より
導波路基板の少なくとも光検出器側の端面で第１
の光導波路との間隔を広くした第２の光導波路と
を形成し、前記結合部に第１の光導波路と第２の
光導波路とを各々覆つて電極を設けた導波路型光
スイツチと、被検査フアイバーヘパルス光を第１
の光導波路を通じて入射する光源と、被検査フア
イバーからの戻り光を第２の光導波路から受光す
る光検出器を備えた光パルス試験器において、導
波路基板の光検出器側の端面で第１の光導波路と
第２の光導波路との間隔を１〜２mmとし、第２の
光導波路を結合部より光検出器側の端面の方で実
効屈折率が大きくなるよう形成した導波路型光ス
イツチを用いることを特徴とする光パルス試験器
。 (2) 第２の光導波路を結合部から光検出器側の
端面へ向つてリツジ型曲り導波路として形成した
導波路型光スイツチを用いる実用新案登録請求の
範囲第１項記載の光パルス試験器。 (3) 第２の光導波路を結合部から光検出器側の
端面へ向つて屈曲型テーパ状導波路として形成し
た導波路型光スイツチを用いる実用新案登録請求
の範囲第１項記載の光パルス試験器。 (4) 第２の光導波路を結合部から光検出器側の
端面へ向つて反射型導波路として形成した導波路
型光スイツチを用いる実用新案登録請求の範囲第
１項記載の光パルス試験器。[Claims for Utility Model Registration] (1) On a waveguide substrate having an electro-optic effect, 1
A linear first optical waveguide connected to the light source side at an end face and connected to the fiber to be inspected at another end face opposite thereto, and a coupling portion provided along the first optical waveguide at the center of the waveguide substrate. At least on the end face of the waveguide substrate on the photodetector side, the first
a second optical waveguide with a wide interval from the optical waveguide, and an electrode is provided at the coupling portion to cover each of the first optical waveguide and the second optical waveguide; The first pulsed light is applied to the fiber to be inspected.
In an optical pulse tester equipped with a light source that enters through an optical waveguide, and a photodetector that receives return light from the fiber under test from a second optical waveguide, a first A waveguide-type optical switch in which the interval between the optical waveguide and the second optical waveguide is 1 to 2 mm, and the second optical waveguide is formed so that the effective refractive index is larger at the end face on the photodetector side than at the coupling part. An optical pulse tester characterized by using. (2) Optical pulse test described in Claim 1 of the Utility Model Registration Claim using a waveguide type optical switch in which the second optical waveguide is formed as a ridge-type curved waveguide from the coupling portion toward the end face on the photodetector side. vessel. (3) The optical pulse according to claim 1, which uses a waveguide type optical switch in which the second optical waveguide is formed as a bent tapered waveguide from the coupling portion toward the end face on the photodetector side. Test device. (4) The optical pulse tester according to claim 1, which uses a waveguide type optical switch in which the second optical waveguide is formed as a reflection type waveguide from the coupling portion toward the end face on the photodetector side. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19955387U JPH0530127Y2 (en) | 1987-12-28 | 1987-12-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19955387U JPH0530127Y2 (en) | 1987-12-28 | 1987-12-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01102843U true JPH01102843U (en) | 1989-07-11 |
| JPH0530127Y2 JPH0530127Y2 (en) | 1993-08-02 |
Family
ID=31490001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19955387U Expired - Lifetime JPH0530127Y2 (en) | 1987-12-28 | 1987-12-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0530127Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01248142A (en) * | 1988-03-29 | 1989-10-03 | Nec Corp | Optical switch |
| JPH08171032A (en) * | 1994-09-21 | 1996-07-02 | Alcatel Nv | Optical coupling device |
-
1987
- 1987-12-28 JP JP19955387U patent/JPH0530127Y2/ja not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01248142A (en) * | 1988-03-29 | 1989-10-03 | Nec Corp | Optical switch |
| JPH08171032A (en) * | 1994-09-21 | 1996-07-02 | Alcatel Nv | Optical coupling device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0530127Y2 (en) | 1993-08-02 |
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