Laser diode current supply including a threshold current compone

Details Laser diode current supply including a threshold current compone Laser diode current supply including a threshold current compone

1991-08-02

1993-03-23

Berman, Jack I.

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

369124, G11B 7125

Patent

active

051970597

ABSTRACT:
In an apparatus for supplying a current for driving a laser diode, an amount of current is supplied to the laser diode. During a read mode, a read peak current modified by a high frequency signal in addition to the amount of current is supplied to the laser diode, and during a write mode, a base read current in addition to the amount of current is supplied to the laser diode so that a light output of the laser diode is equal to a base read output. The read peak current is adjusted so that a mean value of the light output of the laser diode is equal to the base read output. An automatic control is performed upon the amount of current so that the light output of the laser diode is close to or approaches the base read output.

REFERENCES:
patent: 4785443 (1988-11-01), Minami et al.
patent: 5059780 (1991-10-01), Kakuta et al.

Affiliated with

Also associated with

Rating

Laser diode current supply including a threshold current compone does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Laser diode current supply including a threshold current compone, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Laser diode current supply including a threshold current compone will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1357557