JPH0229549U - - Google Patents
Info
- Publication number
- JPH0229549U JPH0229549U JP10748288U JP10748288U JPH0229549U JP H0229549 U JPH0229549 U JP H0229549U JP 10748288 U JP10748288 U JP 10748288U JP 10748288 U JP10748288 U JP 10748288U JP H0229549 U JPH0229549 U JP H0229549U
- Authority
- JP
- Japan
- Prior art keywords
- laser
- optical modulator
- ultrasonic
- control means
- optical
- 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
Description
第１図は本考案に係る光信号発生器の一実施例
を示す構成ブロツク図、第２図および第３図は第
１図装置の動作を説明するための特性曲線図、第
４図および第５図は従来の光信号発生器を示す構
成ブロツク図である。
１…レーザ、４…超音波光変調器、１３…比較
手段、１４…レーザ駆動手段、１８…減衰量制御
手段。
FIG. 1 is a configuration block diagram showing one embodiment of the optical signal generator according to the present invention, FIGS. 2 and 3 are characteristic curve diagrams for explaining the operation of the device shown in FIG. 1, and FIGS. FIG. 5 is a block diagram showing a conventional optical signal generator. DESCRIPTION OF SYMBOLS 1... Laser, 4... Ultrasonic optical modulator, 13... Comparison means, 14... Laser drive means, 18... Attenuation amount control means.
Claims (1)
発生器において、レーザと、このレーザの出力光
が入射する超音波光変調器と、この超音波光変調
器を透過する０次光の光パワーの一部と変調信号
との差を演算する比較手段と、この比較手段の出
力に対応する信号で前記レーザを駆動するレーザ
駆動手段と、変調信号に対応して前記超音波光変
調器の減衰率を制御する減衰量制御手段とを備え
、減衰量制御手段が超音波光変調器の回折効率の
非直線性を補正するように構成したことを特徴と
する光信号発生器。 An optical signal generator that outputs optical power corresponding to a modulated signal includes a laser, an ultrasonic optical modulator into which the output light of the laser enters, and an optical power of zero-order light transmitted through the ultrasonic optical modulator. a comparison means for calculating the difference between the part and the modulation signal; a laser drive means for driving the laser with a signal corresponding to the output of the comparison means; and an attenuation rate of the ultrasonic optical modulator corresponding to the modulation signal. 1. An optical signal generator comprising: attenuation control means for controlling the attenuation amount control means, the attenuation amount control means being configured to correct non-linearity of diffraction efficiency of the ultrasonic optical modulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10748288U JPH0229549U (en) | 1988-08-15 | 1988-08-15 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10748288U JPH0229549U (en) | 1988-08-15 | 1988-08-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0229549U true JPH0229549U (en) | 1990-02-26 |
Family
ID=31341938
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10748288U Pending JPH0229549U (en) | 1988-08-15 | 1988-08-15 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0229549U (en) |
-
1988
- 1988-08-15 JP JP10748288U patent/JPH0229549U/ja active Pending