JPS6010399U - optical transmission equipment - Google Patents
optical transmission equipmentInfo
- Publication number
- JPS6010399U JPS6010399U JP10265883U JP10265883U JPS6010399U JP S6010399 U JPS6010399 U JP S6010399U JP 10265883 U JP10265883 U JP 10265883U JP 10265883 U JP10265883 U JP 10265883U JP S6010399 U JPS6010399 U JP S6010399U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- light
- optical transmission
- converts
- output signal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図及び第２図は従来の伝送装置の構成例を示す説明
図、第３図は本考案の一実施例を示す構成説明図である
。
Ｔｉ・・・・・・入力端子、Ｔｏ・・・・・・出力端子
、ＬＥＤ・・・・・・発光ダイオード、ＰＤＩ、ＰＤ２
・・・・・・フォトダイオード、ＦＢＲ・・・・・・光
ファイバー、ＡＩ、 Ａ２・曲・変換回路、Ａ３・・・
・・・増幅器、ＭＩＸ・・・・・・ミキサー、Ｏ２０・
・・・・・パイロットキャリヤ発振回路、ＬＰＦ・・・
・・・ローパスフィルター、ＨＰＦ・・・・・・バイパ
スフィ “ルター、ＡＧＣ・・・・・・制御回路
。1 and 2 are explanatory diagrams showing an example of the configuration of a conventional transmission device, and FIG. 3 is an explanatory diagram showing an example of the configuration of the present invention. Ti...Input terminal, To...Output terminal, LED...Light emitting diode, PDI, PD2
...Photodiode, FBR...Optical fiber, AI, A2/track/conversion circuit, A3...
...Amplifier, MIX...Mixer, O20.
...Pilot carrier oscillation circuit, LPF...
...Low pass filter, HPF...Bypass filter, AGC...Control circuit.
Claims (1)
送出される光信号を伝送する光伝送体と、光信号を電気
信号に変換する等しい特性を有し光伝送体に加えられる
発光素子の出力光を電気信号に変換する第１の受光素子
及び光伝送体から送出される出力光を電気信号に変換す
る第２の受光素子と、伝送すべきアナログ信号よりも高
い単一周波数を有し振幅の安定なパイロットキャリアを
発生する発振回路と、伝送すべきアナログ信号とパイロ
ットキャリヤとを加えるミキサーと、第１の受光素子の
出力信号及びミキサーの出力信号に従って発光素子を駆
動する駆動回路と、第２の受光素子の出力信号を電圧信
号に変換する変換回路と、変換回路の出力信号から伝送
すべきアナログ信号の信号成分を取り出すローパスフィ
ルターと、変換回路の出力信号からパイロットキャリヤ
の信号成分を取り出すバイパスフィルターと、ローパス
フィルターの出力信号を増幅する増幅器と、バイパスフ
ィルターの出力信号に従って光伝送体における伝送損失
を補償するように増幅器のゲインを一調整する制御回路
とで構成された゛ことを特徴とする光伝送装置。A light-emitting element that converts an electrical signal into an optical signal, an optical transmission body that transmits the optical signal sent out from the light-emitting element, and a light-emitting element that is added to the optical transmission body and has the same characteristics that converts the optical signal into an electrical signal. A first light receiving element that converts the output light into an electrical signal, a second light receiving element that converts the output light sent from the optical transmission body into an electrical signal, and has a single frequency higher than that of the analog signal to be transmitted. an oscillation circuit that generates a pilot carrier with a stable amplitude, a mixer that adds the analog signal to be transmitted and the pilot carrier, and a drive circuit that drives the light emitting element according to the output signal of the first light receiving element and the output signal of the mixer; A conversion circuit that converts the output signal of the second light-receiving element into a voltage signal, a low-pass filter that extracts the signal component of the analog signal to be transmitted from the output signal of the conversion circuit, and a signal component of the pilot carrier from the output signal of the conversion circuit. It is characterized by being composed of a bypass filter to take out, an amplifier that amplifies the output signal of the low-pass filter, and a control circuit that adjusts the gain of the amplifier so as to compensate for transmission loss in the optical transmission medium according to the output signal of the bypass filter. optical transmission equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10265883U JPS6010399U (en) | 1983-07-01 | 1983-07-01 | optical transmission equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10265883U JPS6010399U (en) | 1983-07-01 | 1983-07-01 | optical transmission equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6010399U true JPS6010399U (en) | 1985-01-24 |
Family
ID=30241868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10265883U Pending JPS6010399U (en) | 1983-07-01 | 1983-07-01 | optical transmission equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6010399U (en) |
-
1983
- 1983-07-01 JP JP10265883U patent/JPS6010399U/en active Pending
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