Abstract:
The present invention relates to a multi-channel optical transmission sub-assembly. The multi-channel optical transmission sub-assembly includes: a stem including a sub-mount; a plurality of light sources mounted on the sub-mount; a common ground pad which is formed on the sub-mount and uniformly connected to ground electrodes of the light sources; a common lead pin which is installed on the stem and connected to the common ground pad; and a thermistor which is mounted on the sub-mount with the light sources.
Abstract:
PURPOSE: A data transmission apparatus in a discrete type base station and method thereof are provided to reduce manufacturing costs of a wireless unit by guaranteeing the flexibility of a network topology configuration. CONSTITUTION: A digital unit(120) creates first data including transmission data and transmission method information. In case the selected transmission method uses a TDM(Time Division Multiplexer) type, a TDM synchronization control unit(130) adds synchronization information which is necessary for transmitting a TDM method to first data. The TDM synchronization control unit creates second data. A wavelength converting unit(140) converts the first or the second data into an optical wavelength signal.
Abstract:
고속 신호 전달용 기판 조립체 및 그 제조방법에 관한 것이다. 고속 신호 전달용 기판 조립체는, 서브 마운트 기판과, 베이스 기판, 및 신호선용 접속부재를 포함한다. 서브 마운트 기판은 상면에 적어도 하나의 제1 고속 신호선이 형성된다. 베이스 기판은 상면 일측에 서브 마운트 기판이 장착되며, 상면 타측에 제1 고속 신호선과 대응되게 제2 고속 신호선이 형성된다. 신호선용 접속부재는 서브 마운트 기판의 가장자리에 장착되어 상측 부위가 제1 고속 신호선과 접촉되고 하측 부위가 제2 고속 신호선과 접촉되어 제1 고속 신호선과 제2 고속 신호선을 접속시킨다.
Abstract:
The present invention relates to a wavelength-variable optical transceiver device comprising an optical transmitter configured to transmit light of variable wavelength; an optical receiver configured to receive light generated from an opposite light source; and a controller configured to perform initialization to a wavelength corresponding to a wavelength when an intensity of light received by the optical receiver is greater than or equal to a reference power, while varying the wavelength of light output by the optical transmitter.
Abstract:
PURPOSE: An arrangement waveguide lattice router device with the integrated wavelength multiplexing and demultiplexing functions are provided to save the cost and space at the time when an optical communication system is applied. CONSTITUTION: An arrangement waveguide lattice router device (100) with the integrated wavelength multiplexing and demultiplexing functions includes a plurality of input channel waveguides (110), an array waveguide (120), multiple output channel waveguides (130). The multiple output channel waveguides input an optical signal. The arrangement waveguide arrays multiple waveguides that have the uniform length difference from each other and generates the phase difference of the optical signal input from the multiple input channel waveguide. Multiple output channel waveguide outputs the optical signal output from multiple waveguides arrayed on the array waveguide by coupling the optical signal. [Reference numerals] (110,AA,BB) Input channel waveguide; (120) Waveguide; (130,GG,HH) Output channel waveguide; (140,CC,DD) Input plane waveguide; (150,EE,FF) Output plane waveguide; (200) Light divider; (300,II) Light detector
Abstract:
WT-PON은시분할다중화방식및 파장분할다중화방식에따라상향광 신호및 하향광 신호를전송할수 있다. WT-PON에포함된 OLT 및 ONU는사용하는파장의개수를증가시킴으로써, 파장당최대전송속도이상의전송속도를지원할수 있다. OLT에서 ONU로전송되는하향광 신호의중심파장은하향파장대역에서선택될수 있고, ONU에서 OLT로전송되는상향광 신호의중심파장은상향파장대역에서선택될수 있다. 상향파장대역및 하향파장대역에포함되는복수의중심파장들은 O-Band 또는 C-Band의파장대역에서선택될수 있다. 하향파장대역의복수의중심파장들은 LAN WDM 파장대역에서선택될수 있다. 상향파장대역의복수의중심파장들은 10G EPON의상향파장대역또는 CWDM 파장대역에서선택될수 있다. 상향파장대역의복수의중심파장들은상향광 신호의버스트모드에따라분리되어설정되거나, 또는서로다른버스트모드에기초한상향광 신호에의해공유되도록설정될수 있다.
Abstract:
Disclosed are an optical receiver with a wavelength recognizing function, a wavelength determining device using the same, and a method thereof. According to an embodiment of the present invention, the optical receiver includes a distributor distributing the optical intensity of an input optical signal, a first receiving part performing photoelectric conversion to the optical signal distributed by the distributor, a filter having different passband characteristics depending on a wavelength for the optical signal distributed by the distributor, a second receiving part performing photoelectric conversion to the optical signal passing through the filter, and a comparing part determining the wavelength of the input optical signal by comparing the signals converted by the first and second receiving parts to each other.