Method and Apparatus for Producing Linearized Optical Signals
A first form of a method for producing an optical output in substantially linear relationship with an electrical AC signal, includes the following steps: providing a light-emitting transistor having emitter, base, and collector regions, and associated respective emitter, base, and collector terminals, the transistor having a light-emitting output port; applying the AC signal to a first input port defined across a given one of the terminals and a common one of the terminals; applying an amplified version of the AC signal to a second input port defined across a further one of the terminals and the common one of the input terminals; and selecting an amplification of the amplified version of the AC signal to substantially cancel a nonlinearity characteristic of the light emitting transistor.; A second form of the method involves predistortion feedback linearization of an optical signal using a light-emitting transistor or transistor laser.
Attached files:Patents:WO 2,010,036,301
Inventor(s):
FENG MILTON [US]; HOLONYAK NICK [US]; THEN HAN WUI [US]
Type of Offer:
Licensing
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