Injection lasers

Coherent light generators – Particular component circuitry – Optical pumping

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372 29, 372 44, H01S 313

Patent

active

043553958

ABSTRACT:
Apparatus for stabilizing output characteristics of an injection laser has a light sensitive device for producing an electrical signal indicative of the d.c. output light level of the laser. The electrical signal is compared with a reference signal to produce a further signal which is applied to d.c. bias control means for the laser. The d.c. bias control means responds to the further signal to adjust the d.c. bias level such that the d.c. light output level remains substantially at a predetermined level. The means or peak output of the laser can be controlled in a similar manner.

REFERENCES:
patent: 4009385 (1977-02-01), Sell
patent: 4019048 (1977-04-01), Maione et al.
RCA Technical Notes; Witike et al; TN No: 1005; Apr. 9, 1975; pp. 1-3.
Physics Today; Junction Lasers; L. A. D'Asaro et al; Mar. 1971, vol. 24, No. 3; (see Fig. 3, p. 45).

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