Laser diode mode hopping sensing and control system

Details Laser diode mode hopping sensing and control system Laser diode mode hopping sensing and control system

1986-07-03

1988-04-12

Shaw, Clifford C.

Recorders

Performance of multiple functions of steam and gas engines

Pressure responsive element

346108, 372 19, 372 29, 372 24, 372 34, G01D 942, H01S 304

Patent

active

047377984

ABSTRACT:
A printer having holographic scanning disc for scanning the imaging beam from a laser diode across a recording member, the diode having diode biasing and modulating current inputs for modulating the diode and thereby exposing and creating images on the recording member, a heating-cooling device in heat exchange relation with the diode for controlling diode temperatures, and a current sensor for monitoring the diode biasing and modulating currents and operating the heating-cooling device to adjust diode temperatures to maintain diode temperatures within a non-mode hopping temperature range.

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
patent: 4625315 (1986-11-01), Lemberger
patent: 4683573 (1987-07-01), Albanese
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"; RCA Technical Notes; TN No. 1005; Apr. 9, 1975.

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