JPH0248832U - - Google Patents
Info
- Publication number
- JPH0248832U JPH0248832U JP12744088U JP12744088U JPH0248832U JP H0248832 U JPH0248832 U JP H0248832U JP 12744088 U JP12744088 U JP 12744088U JP 12744088 U JP12744088 U JP 12744088U JP H0248832 U JPH0248832 U JP H0248832U
- Authority
- JP
- Japan
- Prior art keywords
- laser beam
- optical means
- photodetector
- measured
- output
- 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 7
- BJQHLKABXJIVAM-UHFFFAOYSA-N bis(2-ethylhexyl) phthalate Chemical compound CCCCC(CC)COC(=O)C1=CC=CC=C1C(=O)OCC(CC)CCCC BJQHLKABXJIVAM-UHFFFAOYSA-N 0.000 claims description 4
- 238000010408 sweeping Methods 0.000 claims description 3
- 230000010355 oscillation Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Description
第１図は本考案に係るレーザ周波数計の一実施
例を示す構成ブロツク図、第２図は第１図装置の
動作を示すタイムチヤート、第３図およひ第４図
は同動作説明図、第５図および第６図は従来のレ
ーザ周波数計を示す原理図である。
１…参照レーザ、２…第１の光学手段、５…フ
アブリ・ペロー・エタロン、６…第２の光学手段
、７…第１の光検出器、８…第２の光検出器、９
…第１のメモリ回路、１０…第２のメモリ回路、
１１…第１の発振器、１２…第２の発振器、１３
…周波数演算回路、５３…掃引手段。
Fig. 1 is a configuration block diagram showing an embodiment of the laser frequency meter according to the present invention, Fig. 2 is a time chart showing the operation of the device shown in Fig. 1, and Figs. 3 and 4 are explanatory diagrams of the same operation. , FIG. 5, and FIG. 6 are principle diagrams showing a conventional laser frequency meter. DESCRIPTION OF SYMBOLS 1... Reference laser, 2... First optical means, 5... Fabry-Perot etalon, 6... Second optical means, 7... First photodetector, 8... Second photodetector, 9
...first memory circuit, 10...second memory circuit,
11...first oscillator, 12...second oscillator, 13
...Frequency calculation circuit, 53...Sweeping means.
Claims (1)
ーザの出力光と被測定レーザ光とを合波する第１
の光学手段と、この第１の光学手段の出力光を入
射するフアブリ・ペロー・エタロンと、このフア
ブリ・ペロー・エタロンを透過する光を前記被測
定レーザ光と前記参照レーザ光の２つに分離する
第２の光学手段と、この第２の光学手段から出力
される前記被測定レーザ光を検出する第１の光検
出器と、前記第２の光学手段から出力される前記
参照レーザ光を検出する第２の光検出器と、前記
第１の光検出器の出力信号を記憶する第１のメモ
リ回路と、前記第２の光検出器の出力信号を記憶
する第２のメモリ回路と、前記フアブリ・ペロー
・エタロンのミラー間隔を微小変化させる掃引手
段と、この掃引手段を駆動する第１の発振器と、
前記第１および第２のメモリ回路を駆動する高安
定な第２の発振器と、第１のメモリ回路出力およ
び第２のメモリ回路出力に基づいて被測定レーザ
光の周波数を演算する周波数演算回路とを備えた
ことを特徴とするレーザ周波数計。 A reference laser whose oscillation frequency is known, and a first beam that combines the output light of this reference laser and the laser beam to be measured.
an optical means, a Fabry-Perot etalon into which the output light of the first optical means is incident, and a light that passes through the Fabry-Perot etalon is separated into the laser beam to be measured and the reference laser beam. a second optical means for detecting the measured laser beam output from the second optical means; a first photodetector for detecting the reference laser beam output from the second optical means; a second photodetector that stores the output signal of the first photodetector; a second memory circuit that stores the output signal of the second photodetector; a sweeping means for minutely changing the mirror spacing of the Fabry-Perot etalon; a first oscillator for driving the sweeping means;
a highly stable second oscillator that drives the first and second memory circuits; and a frequency calculation circuit that calculates the frequency of the laser beam to be measured based on the first and second memory circuit outputs. A laser frequency meter characterized by being equipped with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12744088U JPH0648365Y2 (en) | 1988-09-29 | 1988-09-29 | Laser frequency meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12744088U JPH0648365Y2 (en) | 1988-09-29 | 1988-09-29 | Laser frequency meter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0248832U true JPH0248832U (en) | 1990-04-04 |
| JPH0648365Y2 JPH0648365Y2 (en) | 1994-12-12 |
Family
ID=31379876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12744088U Expired - Lifetime JPH0648365Y2 (en) | 1988-09-29 | 1988-09-29 | Laser frequency meter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0648365Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100532376B1 (en) * | 1998-01-14 | 2006-01-27 | 삼성전자주식회사 | Generation of heat managing apparatus for motor drive circuit |
-
1988
- 1988-09-29 JP JP12744088U patent/JPH0648365Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0648365Y2 (en) | 1994-12-12 |
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