Modulators – Amplitude modulator – Nonlinear device controlled by modulating signal
Patent
1986-08-14
1989-01-10
Tarcza, Thomas H.
Modulators
Amplitude modulator
Nonlinear device controlled by modulating signal
H04B 900
Patent
active
047976403
ABSTRACT:
The output of a laser diode or L.E.D. is amplitude modulated by varying the forward current through it. This is done by applying a dc current component from a first current source and an ac current component from another part of the circuit. The ac current component is applied to the laser diode or L.E.D. via an ideal impedance matching transformer which includes the internal capacitance of the laser diode or L.E.D, such that when the frequency of the modulating signal is varied, and hence the response of the laser diode or L.E.D varies, ideal matching is still obtained since the internal capacitance enables compensation to be made.
REFERENCES:
patent: 3280332 (1966-10-01), Yando
patent: 3341708 (1967-09-01), Bilderback
patent: 3551848 (1970-07-01), Rossoff
patent: 3988704 (1976-10-01), Rice et al.
patent: 3996526 (1976-12-01), d'Auria et al.
patent: 4074143 (1978-02-01), Rokos
patent: 4101847 (1978-07-01), Albanese
patent: 4149071 (1979-04-01), Nagai et al.
patent: 4277846 (1981-07-01), Chen
patent: 4580293 (1986-04-01), Reichle
patent: 4611352 (1986-09-01), Fujito et al.
Myers, "The Radio Amateur's Handbook" The American Radio Relay League Inc., 1973, p. 39.
Hellner Mark
Tarcza Thomas H.
The General Electric Company p.l.c.
LandOfFree
Apparatus for amplitude modulating the output of a laser diode o does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus for amplitude modulating the output of a laser diode o, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for amplitude modulating the output of a laser diode o will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2109736