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    • 12. 发明公开
    • 초고주파 펄스 광원소자
    • ULTRAHIGH频率脉冲光源设备
    • KR1020040054072A
    • 2004-06-25
    • KR1020020080706
    • 2002-12-17
    • 한국전자통신연구원
    • 김동철임영안이대수박경현김성복백용순심은덕
    • H01S5/12
    • H01S5/06258H01S5/0657
    • PURPOSE: An ultrahigh frequency pulse light source device is provided to form a multi-region distributed feedback laser diode with one chip by forming a phase control region between two kinds of distributed feedback laser diodes. CONSTITUTION: Two DFB regions(2,4) corresponds to one device. A phase control region(6) is arranged between the DFB regions. A plurality of diffraction grids(12,18) are formed in the inside of the DFB regions, respectively. The diffraction grids are symmetrically arranged to each other. A plurality of active layers(14,16) are connected to both sides of a waveguide core(20) of the phase control region. Brag wavelengths of the DFB regions are detuned.
    • 目的:提供超高频脉冲光源器件,通过在两种分布式反馈激光二极管之间形成相位控制区域,形成具有一个芯片的多区域分布反馈激光二极管。 构成:两个DFB区域(2,4)对应于一个设备。 在DFB区域之间布置有相位控制区域(6)。 分别在DFB区域的内部形成多个衍射栅极(12,18)。 衍射栅格彼此对称排列。 多个有源层(14,16)连接到相位控制区域的波导芯(20)的两侧。 DFB区域的波长波长失谐。
    • 19. 发明授权
    • 반도체 광 증폭기를 이용한 파장 변환 및 클락 재생 장치및 방법
    • 使用半导体光放大器的波长转换和时钟再生装置及方法
    • KR100734860B1
    • 2007-07-03
    • KR1020050119285
    • 2005-12-08
    • 한국전자통신연구원
    • 김동철전민용임영안심은덕박경현김성복
    • G02B6/26
    • H04B10/299
    • Provided is an apparatus and method for simultaneous optical wavelength conversion and optical clock signal extraction using semiconductor optical amplifiers (SOAs). The apparatus includes: a wavelength converter receiving a pump beam having input information and a probe beam having a different wavelength from the pump beam, and outputting the pump beam with an overshoot shifted to a red wavelength and an undershoot shifted to a blue wavelength due to non-linear characteristics and self-phase modulation of semiconductor optical amplifiers (SOAs) and the probe beam delivered the input information from the pump beam; an optical divider dividing output paths of the probe beam to which the input information has been delivered and the pump beam having the overshoot and the undershoot; a converted-wavelength extractor filtering the probe beam received from the optical divider; and a clock data regenerator obtaining a pseudo return-to-zero (PRZ) signal from the pump beam received from the optical divider and extracting a clock signal from the PRZ signal. The apparatus and method can simultaneously perform wavelength conversion and optical clock signal extraction on an NRZ signal using an optical method, without converting the NRZ signal into an electrical signal.