Optical communications – Transmitter – Having particular modulation
Reexamination Certificate
2011-04-26
2011-04-26
Liu, Li (Department: 2613)
Optical communications
Transmitter
Having particular modulation
C398S182000, C398S192000, C398S201000
Reexamination Certificate
active
07933524
ABSTRACT:
Provided are an apparatus for and a method of generating millimeter waves, in which millimeter-wave generation and frequency up-conversion can be achieved at the same time using a single device. The apparatus includes a mode-locking laser diode (LD) which has a distributed feedback (DFB) sector and a gain sector and generates high-frequency optical pulses through a passive mode locking process, a modulator which modulates an external optical signal using an electric signal and injects the modulated optical signal to the mode-locking LD to lock the optical pulses, and a radio frequency (RF) locking signaling unit which injects the electric signal to the modulator.
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Choi Woo Young
Lee Kwang Hyun
Leem Young Ahn
Park Kyung Hyun
Electronics and Telecommunications Research Institute
Industry-Academic Cooperation Foundation, Yonsei-University
Ladas & Parry LLP
Liu Li
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