JPS57193078A - Semiconductor light oscillator with monitor - Google Patents

Semiconductor light oscillator with monitor

Info

Publication number
JPS57193078A
JPS57193078A JP7746681A JP7746681A JPS57193078A JP S57193078 A JPS57193078 A JP S57193078A JP 7746681 A JP7746681 A JP 7746681A JP 7746681 A JP7746681 A JP 7746681A JP S57193078 A JPS57193078 A JP S57193078A
Authority
JP
Japan
Prior art keywords
light
oscillator
emitted
oscillation
semiconductor
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
JP7746681A
Other languages
Japanese (ja)
Inventor
Akira Mita
Isao Kobayashi
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co Ltd
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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP7746681A priority Critical patent/JPS57193078A/en
Publication of JPS57193078A publication Critical patent/JPS57193078A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]

Abstract

PURPOSE:To enable monitoring with bare eyes of oscillation luminous flux of a light oscillator by providing a light emitting substance which emits a visible light upon absorption of infrared ray of oscillation wavelength on a light emitting passage of a semiconductor light oscillator having an oscillation wavelength in 1.5mum band. CONSTITUTION:A fluorescent substance 4 in which 20-100% of Y stom is substituted for Er atom of a base of YF3, BaY2F6, NaYF4 on the light emitting side optical passage of a InGaAsP semiconductor oscillator 1 having an oscillation wavelength of 1.5mum. In the structure, a signal light 1 incident to the oscillator 1 is emitted as an emitting light 3 from the opposite side, a fluorescent substance 4 is emitted with the light 3, and a red light 5 which can be readily visually observed even under bright chamber is produced. Thereafter, this light 5 is emitted to an Si solar battery 6 or the like, and the oscillation intensity of the oscillator 1 is detected as an electric output of the battery 6. In this manner, a semiconductor oscillator with a monitor having high sensitivity and high reliability can be obtained.
JP7746681A 1981-05-22 1981-05-22 Semiconductor light oscillator with monitor Pending JPS57193078A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7746681A JPS57193078A (en) 1981-05-22 1981-05-22 Semiconductor light oscillator with monitor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7746681A JPS57193078A (en) 1981-05-22 1981-05-22 Semiconductor light oscillator with monitor

Publications (1)

Publication Number Publication Date
JPS57193078A true JPS57193078A (en) 1982-11-27

Family

ID=13634763

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7746681A Pending JPS57193078A (en) 1981-05-22 1981-05-22 Semiconductor light oscillator with monitor

Country Status (1)

Country Link
JP (1) JPS57193078A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6350077A (en) * 1986-08-20 1988-03-02 Fujitsu Ltd Semiconductor light receiving device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6350077A (en) * 1986-08-20 1988-03-02 Fujitsu Ltd Semiconductor light receiving device

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