Laser diode control apparatus

Patent · Tue May 08 04:00:00 EDT 1990

OSTI ID:6722841

Ries, G

This patent describes a laser diode wavelength shift control apparatus. It comprises: laser diode first means, including signal input means and signal output means, the first means changing in operational wavelength as a function of current passing therethrough, where the function includes a non-linear knee, signal source second means, connected to the input means of the first means for passing a given frequency binary data first signal through the first means wherein the two logic levels alter current levels in the first means between opposite sides of the knee, intermodulation signal source third means, connected to the first means, for superimposing upon the data first signal intermodulation second and third signals, whose frequencies are different and are both low compared to the data rate of the first signal, the second and third signals creating maximum intermodulation signal levels when the current in the first means corresponds to the knee.

• Assignee: NOV; EDB-90-125441; NOV-90-023242
• Patent Number(s): A; US 4924470
• Application Number: PPN: US 7-384626A
• OSTI ID: 6722841
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
426002* -- Engineering-- Lasers & Masers-- (1990-)
99 GENERAL AND MISCELLANEOUS
990200 -- Mathematics & Computers
COMPUTERIZED CONTROL SYSTEMS
CONTROL
CONTROL SYSTEMS
DESIGN
LASERS
SEMICONDUCTOR DEVICES
SEMICONDUCTOR DIODES
SEMICONDUCTOR LASERS
SIGNAL CONDITIONING
SOLID STATE LASERS