Title:
POWER CONTROLLER
Document Type and Number:
Japanese Patent JP2000059316
Kind Code:
A
Abstract:
To provide a circuit and a method to control power of a laser.
The power of a laser can be controlled by (1) storage of a current generated by a photodiode 117 in response to an optical signal generated by the laser, (2) subtraction of a preset threshold current in response to a data signal used to drive the laser from the current, (3) comparison of the prescribed storage with the prescribed subtraction before starting the storage and the subtraction. A driver 119 of the laser is controlled by using the result of this comparison (filter processing may be executed).
Inventors:
OTA YUSUKE
EDERD SACKINGER
EDERD SACKINGER
Application Number:
JP19132799A
Publication Date:
February 25, 2000
Filing Date:
July 06, 1999
Export Citation:
Assignee:
LUCENT TECHNOLOGIES INC
International Classes:
H04B10/60; H01S5/062; H01S5/0683; H04B10/07; H04B10/272; H04B10/40; H04B10/43; H04B10/50; H04B10/564; H04B10/67; H04B10/69; (IPC1-7): H04B10/28; H04B10/26; H04B10/14; H04B10/04; H04B10/06
Attorney, Agent or Firm:
Hirofumi Mimata
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