JPS5617091A - Laser time standerdization device - Google Patents

Laser time standerdization device

Info

Publication number
JPS5617091A
JPS5617091A JP9307879A JP9307879A JPS5617091A JP S5617091 A JPS5617091 A JP S5617091A JP 9307879 A JP9307879 A JP 9307879A JP 9307879 A JP9307879 A JP 9307879A JP S5617091 A JPS5617091 A JP S5617091A
Authority
JP
Japan
Prior art keywords
laser beam
frequency
cell
time signal
molecule
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
Application number
JP9307879A
Other languages
Japanese (ja)
Inventor
Masao Akaha
Makoto Shibata
Tomotoshi Takayama
Takashi Ichikawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Seiko Epson Corp
Suwa Seikosha KK
Original Assignee
Seiko Epson Corp
Suwa Seikosha KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Seiko Epson Corp, Suwa Seikosha KK filed Critical Seiko Epson Corp
Priority to JP9307879A priority Critical patent/JPS5617091A/en
Publication of JPS5617091A publication Critical patent/JPS5617091A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
    • H01S3/13—Stabilisation of laser output parameters, e.g. frequency or amplitude

Abstract

PURPOSE:To obtain a highly precise standard time signal by making a laser beam emitted from a laser beam source devided into two equal parts and projected to an absorbing cell giving a reverse direction with each other and by performing a low frequency moduration for the laser beam in a way that the absorption center frequency of the molecule in the cell and the oscillation frequency of the beam source will be in coincidence with each other. CONSTITUTION:A laser beam from a laser beam source 10 is transmitted through a beam splitter 12 by reflecting it with a reflecting mirror 11 and the beam is devided into two making the beam intensity of one of them stronger than that of the other. Then, these beams are reflected with reflecting mirrors 13 and 14, giving a reversed direction with each other, and projected into an absorption cell 15, wherein a molecule presenting Hall burning phenomenon is sealed, and the laser beam emitted from the above is detected by a detector 16. Subsequently, the detected beam is controlled by a tuning control circuit 17, a low frequency modulation is performed for the beam frequency, being fed back to a beam source 10 and is coincided with the absorption center frequency of the molecule in the cell 15. Then, said coincided frequency is emitted as a standard time signal through a standard time signal generating circuit.
JP9307879A 1979-07-20 1979-07-20 Laser time standerdization device Pending JPS5617091A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9307879A JPS5617091A (en) 1979-07-20 1979-07-20 Laser time standerdization device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9307879A JPS5617091A (en) 1979-07-20 1979-07-20 Laser time standerdization device

Publications (1)

Publication Number Publication Date
JPS5617091A true JPS5617091A (en) 1981-02-18

Family

ID=14072473

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9307879A Pending JPS5617091A (en) 1979-07-20 1979-07-20 Laser time standerdization device

Country Status (1)

Country Link
JP (1) JPS5617091A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0468738U (en) * 1990-10-29 1992-06-18
JPH06334253A (en) * 1993-05-21 1994-12-02 Nec Corp Narrow band excimer laser

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0468738U (en) * 1990-10-29 1992-06-18
JPH06334253A (en) * 1993-05-21 1994-12-02 Nec Corp Narrow band excimer laser

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