JPH024270U - - Google Patents
Info
- Publication number
- JPH024270U JPH024270U JP8197688U JP8197688U JPH024270U JP H024270 U JPH024270 U JP H024270U JP 8197688 U JP8197688 U JP 8197688U JP 8197688 U JP8197688 U JP 8197688U JP H024270 U JPH024270 U JP H024270U
- Authority
- JP
- Japan
- Prior art keywords
- amplifier
- semiconductor laser
- photoelectric conversion
- conversion element
- beam splitter
- 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
- 239000004065 semiconductor Substances 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 238000002347 injection Methods 0.000 claims 1
- 239000007924 injection Substances 0.000 claims 1
- 230000003287 optical effect Effects 0.000 claims 1
- 230000006641 stabilisation Effects 0.000 claims 1
- 238000011105 stabilization Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 238000001228 spectrum Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Description
第１図は本考案の半導体レーザ波長安定化装置
の一実施例を示す回路構成図、第２図はレーザ、
共振器および出力光のスペクトルを示す図、第３
図は従来例を示す回路構成図である。
Ａ１…第１の増幅器、Ａ２…第２の増幅器、Ｂ
…積分器、Ｅ…波長選択素子（共振器）、Ｌ…レ
ンズ、ＬＤ…半導体レーザダイオード、ＰＤ１，
ＰＤ２…光電変換素子、ＨＭ１，ＨＭ２…ハーフ
ミラー、Ｒ１〜Ｒ５…抵抗。
FIG. 1 is a circuit diagram showing an embodiment of the semiconductor laser wavelength stabilizing device of the present invention, and FIG. 2 shows a laser,
Diagram showing the spectrum of the resonator and output light, 3rd
The figure is a circuit configuration diagram showing a conventional example. A1 ...first amplifier, A2 ...second amplifier, B
... Integrator, E... Wavelength selection element (resonator), L... Lens, LD... Semiconductor laser diode, PD 1 ,
PD2 ...Photoelectric conversion element, HM1 , HM2 ...Half mirror, R1 to R5 ...Resistance.
Claims (1)
素子を挟んで配置された第１、第２のビームスプ
リツタと、前記第１のビームスプリツタからの一
方の光を電気信号に変換する第１の光電変換素子
と、前記共振器を通過し第２のビームスプリツタ
で分岐した一方の光を出力光とし、他方の光を電
気信号に変換する第２の光電変換素子と、この第
２の光電変換素子からの電気信号を増幅する電１
の増幅器と、この第１の増幅器の出力と前記第１
の光電変換素子からの電気信号を入力してその差
を積分する積分器と、この積分器からの出力を第
２の増幅器を介して前記半導体レーザの注入電流
に帰還するように構成したことを特徴とする半導
体レーザ波長安定化装置。 first and second beam splitters disposed on the optical axis of the semiconductor laser with a wavelength selection element having sharp resonance characteristics sandwiched therebetween; and a first beam splitter that converts one of the lights from the first beam splitter into an electrical signal. a second photoelectric conversion element that outputs one light that passes through the resonator and is split by a second beam splitter and converts the other light into an electrical signal; Electrical unit 1 that amplifies the electrical signal from the photoelectric conversion element
an amplifier, an output of the first amplifier and the first amplifier;
an integrator that inputs an electric signal from a photoelectric conversion element and integrates the difference thereof; and an output from this integrator that is fed back to the injection current of the semiconductor laser via a second amplifier. Features of semiconductor laser wavelength stabilization device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8197688U JPH024270U (en) | 1988-06-21 | 1988-06-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8197688U JPH024270U (en) | 1988-06-21 | 1988-06-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH024270U true JPH024270U (en) | 1990-01-11 |
Family
ID=31306744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8197688U Pending JPH024270U (en) | 1988-06-21 | 1988-06-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH024270U (en) |
-
1988
- 1988-06-21 JP JP8197688U patent/JPH024270U/ja active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2000056185A (en) | Laser diode module | |
| JP2000353845A (en) | Semiconductor laser module | |
| GB2221342A (en) | Optical signal sampling apparatus | |
| JPH024270U (en) | ||
| JPS59152793A (en) | Microphone | |
| JPH02189529A (en) | Optically bistable semiconductor laser device | |
| JP2687557B2 (en) | Frequency stabilized semiconductor laser device | |
| JPH01104057U (en) | ||
| JP2835068B2 (en) | Semiconductor laser module | |
| JP2849734B2 (en) | Fiber optic gyro | |
| JPH0636454B2 (en) | Semiconductor laser wavelength stabilizer | |
| JPH024269U (en) | ||
| JP2687556B2 (en) | Frequency stabilized semiconductor laser device | |
| JPS6444659U (en) | ||
| JPS6450460U (en) | ||
| JP2715484B2 (en) | Semiconductor laser device | |
| JPH0248832U (en) | ||
| JPH079412Y2 (en) | Argon gas laser device | |
| JPS63164036A (en) | Optical head | |
| JPH0376033A (en) | Semiconductor laser device | |
| JP2000068581A (en) | Light source module | |
| JPH067609B2 (en) | Light emitting element drive circuit | |
| JP2734552B2 (en) | Semiconductor laser module | |
| JPS61104574U (en) | ||
| JPH0245435U (en) |