JP2007235925A5 - - Google Patents

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Publication number
JP2007235925A5
JP2007235925A5 JP2006336993A JP2006336993A JP2007235925A5 JP 2007235925 A5 JP2007235925 A5 JP 2007235925A5 JP 2006336993 A JP2006336993 A JP 2006336993A JP 2006336993 A JP2006336993 A JP 2006336993A JP 2007235925 A5 JP2007235925 A5 JP 2007235925A5
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Japan
Prior art keywords
transmitter
laser
optical signal
output
remote receiver
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JP2006336993A
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JP2007235925A (ja
JP4668164B2 (ja
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Priority claimed from US11/366,936 external-priority patent/US7848661B2/en
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Claims (11)

  1. 光ファイバ・リンクを介して、遠隔の受信器に送信するための変調された光信号を生成するための光送信器であって、
    レーザ、
    前記レーザを、アナログRF信号で直接振幅変調して、振幅変調された情報を含有する要素及び位相変調要素を含む出力光信号を生成するための、前記レーザに結合された入力、及び、
    前記遠隔の受信器で受信された光信号に存在する歪を低減するように、前記レーザの出力を別個に変調するために前記レーザの出力に結合された位相変調器、
    を備える光送信器。
  2. 前記位相変調器が、前記レーザの出力光信号内の位相変調された要素を相殺する、請求項1に記載の送信器。
  3. 前記位相変調器が、前記遠隔受信器において受信される光信号が受ける誘導ブリユアン散乱閾値を増加させる、請求項1に記載の送信器。
  4. 有効な位相変調相殺が起こるように、変調している電気信号が前記変調された出力光信号と同期されるように、前記アナログRF信号に接続された入力、及び、前記位相変調器に接続された出力、を有する遅延回路を更に備える、請求項1に記載の送信器。
  5. 前記レーザが、外部キャビティ・半導体レーザである、請求項1に記載の送信器。
  6. 前記レーザの出力光信号の波長が、1530から1570nmの範囲にある、請求項1に記載の送信器。
  7. アナログRF信号が、1オクターブより広い帯域を持ち、複数の別個の情報運搬チャンネルを含む、請求項1に記載の送信器。
  8. 前記遠隔受信器において受信される光信号に影響を与える前記レーザの非線形応答を補償するために、前記レーザに結合された前記入力に印加されるアナログRF信号を変調するための予備歪回路を更に備える、請求項1に記載の送信器。
  9. 前記遠隔受信器において受信される光信号に存在する受信される光信号前記レーザの出力の変調が選択的に調整可能である、請求項1に記載の送信器。
  10. 前記遅延回路が、前記遠隔受信器において受信される光信号が受ける誘導ブリユアン散乱閾値を増加させるための低周波数信号生成器を更に備える、請求項4に記載の送信器。
  11. 前記遅延回路が、トーン生成器回路を更に備え、前記受信される光信号中の歪を相殺するために、前記位相変調器によって前記レーザの出力に印加される補償を調整するために、前記トーン生成器回路及び調整回路が前記位相変調器に結合される、請求項9に記載の送信器。
JP2006336993A 2006-03-02 2006-12-14 位相変調で直接変調されたレーザ光伝送システム Expired - Fee Related JP4668164B2 (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11/366,936 US7848661B2 (en) 2005-03-15 2006-03-02 Directly modulated laser optical transmission system with phase modulation

Publications (3)

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JP2007235925A JP2007235925A (ja) 2007-09-13
JP2007235925A5 true JP2007235925A5 (ja) 2010-02-25
JP4668164B2 JP4668164B2 (ja) 2011-04-13

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Country Status (5)

Country Link
US (1) US7848661B2 (ja)
JP (1) JP4668164B2 (ja)
KR (1) KR20070090735A (ja)
CN (1) CN101043273B (ja)
TW (1) TWI416184B (ja)

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