BIDIRECTIONAL OPTICAL TRANSMITTING AND RECEIVING MODULE, BIDIRECTIONAL TRANSCEIVER MODULE, AND OPTICAL COMMUNICATION SYSTEM

• Main Authors: HEO YOUNGUN, PARK SANGSU, JUNG KANGYONG, LIM JONGYEONG, SUNG JINSOO, KIM HONG-MAN, KWON YOONKOO, JIN JAEHYUN, HWANG WOLYON, YOO YOUNGJOON, CHOI JIN SO
• Format: Patent
• Language: English; Japanese
• Published: 27.09.2018
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; PHYSICS; TRANSMISSION

PROBLEM TO BE SOLVED: To provide a bidirectional optical transceiver that suppresses an influence of reflection and backscattering.SOLUTION: A bidirectional optical transceiver includes: an optical reception unit 130 configured so that a transmission signal and a reception signal have different wavelength values in a single channel; a splitter 120 installed to be inclined with respect to an incident direction of the transmission signal output from an optical transmission unit 110 to output the transmission signal to an outside and to reflect optical signals input from the outside; and a reflected light-blocking optical filter 140 configured to pass, as a receiving signal, only an optical signal within a preset wavelength range including the wavelength value allocated to the reception signal among the optical signals reflected by the splitter so as to block external reflected light. The present disclosure may prevent a bidirectional optical transceiver module capable of preventing a link fail between optical communication networks according to reflection and backscattering on an optical line.SELECTED DRAWING: Figure 2 【課題】反射及び後方散乱の影響を抑える双方向光トランシーバを提供する【解決手段】送信信号及び受信信号は単一チャネル内の異なる波長値を有する、光受信ユニット１３０と、光送信ユニット１１０から出力される送信信号の入射方向を基準にして傾斜するよう設置され、送信信号を外部に出力し、外部から入力される光信号を反射する、スプリッタ１２０と、スプリッタによって反射された光信号のうち、受信信号に割り当てられた波長値を含む予め設定された波長範囲内の光信号のみを受信する信号として通過させ、外部反射光を遮断するように構成された、反射光遮断光フィルタ１４０とを含む。本開示は光回線上の反射及び後方散乱による光通信ネットワーク間のリンク障害を防止することが可能な双方向光トランシーバモジュールを防止し得る。【選択図】図２