PURPOSE: An SG-DFB(Sampled Grating Distributed Feed-Back) tunable semiconductor laser WITH an SG-DBR(Sampled Grating Distributed Bragg Reflector) is provided to tune a wavelength by integrating an SG-DFB structure and an SG-DBR structure and forming a phase control region of the SG-DFB structure. CONSTITUTION: A sampled grating(39) is formed on an n-type InP substrate(31) used as a lower clad layer. A phase control region of an InGaAsP waveguide and a gain region of an active layer are formed on the sampled grating. A p-type InP clad layer(32) used as an upper clad layer is formed thereon. A plurality of electrodes are formed on the p-type InP clad layer. A phase control region electrode(36) is formed on the phase control region. A gain region electrode(37) is formed on the gain region. A non-reflective thin film(33) is formed on a section of a semiconductor laser diode.
申请公布号
KR20040094190(A)
申请公布日期
2004.11.09
申请号
KR20030028186
申请日期
2003.05.02
申请人
ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
发明人
JUNG, YEONG CHEOL;KIM, GI SU;KIM, SU HYEON;KO, HYEON SEONG;LEE, CHEOL UK;LEE, JI MYEON;OH, SU HWAN;PARK, MUN HO;PARK, SANG GI