Apparatus and method for detecting and eliminating diode laser m

Details Apparatus and method for detecting and eliminating diode laser m Apparatus and method for detecting and eliminating diode laser m

1986-07-03

1988-03-22

Goldberg, E. A.

Recorders

Printing, dotting, or punching marker

Ink transfer support or moving means

346 11, 372 29, 372 33, 372 24, 372 32, G01D 942, H01S 313

Patent

active

047332530

ABSTRACT:
A printer having holographic scanning disc for scanning the imaging beam from a laser diode across a recording member, with a detector for detecting a shift in wavelength of the diode utilizing the zero order beam passing through the holographic scanning disc and a temperature control for controlling diode temperatures, the detector actuating the temperature control to adjust the temperature of the diode when a shift in the wavelength of the zero order beam from a non-mode hop wavelength to another wavelength is detected, adjustment of the diode temperature shifting the beam wavelength back toward the non-mode hop wavelength region.

REFERENCES:
patent: 3588254 (1971-06-01), Rhoades
patent: 3588738 (1971-06-01), Goodwin
patent: 3790901 (1974-02-01), White et al.
patent: 3902135 (1975-08-01), Terada et al.
patent: 4103254 (1978-07-01), Chikami
patent: 4309671 (1982-01-01), Malyon
patent: 4428643 (1984-01-01), Kay
Wang et al.; "Measurement & Control of Subangstrom Mirror Displacement by Acousto-Optical Technique"; Rev. Sci. Instrum; 53(7); Jul. 1982; pp. 963-966.
Wittke et al.; "Stabilization of CW Injection Lasers"; 4/9/75; RCA Technical Notes; TN No. 1005; pp. 1-3.

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