JPH02102753U - - Google Patents
Info
- Publication number
- JPH02102753U JPH02102753U JP1989011607U JP1160789U JPH02102753U JP H02102753 U JPH02102753 U JP H02102753U JP 1989011607 U JP1989011607 U JP 1989011607U JP 1160789 U JP1160789 U JP 1160789U JP H02102753 U JPH02102753 U JP H02102753U
- Authority
- JP
- Japan
- Prior art keywords
- laser diode
- current source
- differential pair
- source circuit
- driving
- 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
- 230000003287 optical effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Optical Communication System (AREA)
Description
第１図はこの考案の一実施例によるレーザダイ
オード駆動回路の回路図、第２図は従来のレーザ
ダイオード駆動回路図である。図中、１は入力端
子Ａ、２及び３はトランジスタ、４はレーザダイ
オード、５は電流源回路、６はトランジスタ、７
はバイアス電圧回路、８は抵抗、９はバイアス電
圧回路、１０は電源、１１は接地端、１２は入力
端子Ｂである。尚、図中、同一符号は同一、又は
相当部分を示す。
FIG. 1 is a circuit diagram of a laser diode drive circuit according to an embodiment of this invention, and FIG. 2 is a conventional laser diode drive circuit diagram. In the figure, 1 is an input terminal A, 2 and 3 are transistors, 4 is a laser diode, 5 is a current source circuit, 6 is a transistor, and 7
8 is a bias voltage circuit, 8 is a resistor, 9 is a bias voltage circuit, 10 is a power supply, 11 is a ground terminal, and 12 is an input terminal B. In addition, in the figures, the same reference numerals indicate the same or corresponding parts.
Claims (1)
為の差動対を構成する２つのトランジスタとこの
差動対の電流源回路を備えたレーザダイオード駆
動回路に於いて、レーザダイオード駆動用のトラ
ンジスタ差動対と電流源回路の双方に、互いに独
立なレーザダイオード変調用の信号を入力するよ
うにした事を特徴とするレーザダイオード駆動装
置。 In a laser diode drive circuit that includes two transistors forming a differential pair for driving a laser diode that transmits an optical signal and a current source circuit for this differential pair, a differential pair of transistors for driving the laser diode is used. A laser diode drive device characterized in that mutually independent signals for laser diode modulation are input to both the current source circuit and the current source circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989011607U JPH02102753U (en) | 1989-02-01 | 1989-02-01 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989011607U JPH02102753U (en) | 1989-02-01 | 1989-02-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02102753U true JPH02102753U (en) | 1990-08-15 |
Family
ID=31220310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989011607U Pending JPH02102753U (en) | 1989-02-01 | 1989-02-01 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02102753U (en) |
-
1989
- 1989-02-01 JP JP1989011607U patent/JPH02102753U/ja active Pending
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