Light transmitter

Details Light transmitter Light transmitter

1992-03-25

1994-05-03

Pascal, Leslie

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359181, 359182, 359184, 372 38, H04B 1004

Patent

active

053092694

ABSTRACT:
A light transmitter for preventing the degradation of the extinction ratio and the occurrence of pulse width distortion in the light output in spite of the variation of current to light conversion efficiency A of the laser diode. The transmitter uses the characteristics such that the light pulse width becomes narrower than the modulation current pulse width if the laser diode is modulated by a bias current smaller than the threshold level. The light transmitter includes mismatch detection circuit (14) which detects the decrease of the light pulse width. By the detected mismatch signal, the modulation current control circuit (15) limits to increase the modulation current. The modulation current control circuit (15) operates together with the control circuit which controls automatically the light output peak value to be constant.

REFERENCES:
patent: 4277846 (1981-07-01), Chen
patent: 4796266 (1989-01-01), Banwell et al.
patent: 4813048 (1989-03-01), Yamane et al.
patent: 4903273 (1990-02-01), Bathe
patent: 5077619 (1991-12-01), Toms

Affiliated with

Also associated with

Rating

Light transmitter does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Light transmitter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Light transmitter will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2119280