JP2007336217A - 光送信回路 - Google Patents
光送信回路 Download PDFInfo
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- JP2007336217A JP2007336217A JP2006165171A JP2006165171A JP2007336217A JP 2007336217 A JP2007336217 A JP 2007336217A JP 2006165171 A JP2006165171 A JP 2006165171A JP 2006165171 A JP2006165171 A JP 2006165171A JP 2007336217 A JP2007336217 A JP 2007336217A
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Abstract
【解決手段】本発明の一実施形態に係る光送信回路10は、入力電気信号に応じた光信号を出力する光送信回路である。この光送信回路10は、外部電源に接続される電源端子16と、光信号を出力する半導体レーザ素子11と、半導体レーザ素子11に並列に接続され、入力電気信号をその制御端子に受け、半導体レーザ素子11に供給される電流を該入力電気信号に応じて分流する第1のトランジスタ41と、一方の電流端子が第1のトランジスタ41の一方の電流端子に、他方の電流端子が電源端子16に接続され、制御端子が安定電位に接続された第2のトランジスタ42とを備える。
【選択図】図1
Description
[第1の実施形態]
[第2の実施形態]
Claims (5)
- 入力電気信号に応じた光信号を出力する光送信回路であって、
外部電源に接続される電源端子と、
前記光信号を出力する半導体レーザ素子と、
前記半導体レーザ素子に並列に接続され、前記入力電気信号をその制御端子に受け、前記半導体レーザ素子に供給される電流を該入力電気信号に応じて分流する第1のトランジスタと、
一方の電流端子が前記第1のトランジスタの一方の電流端子に接続され、他方の電流端子が前記電源端子に接続され、制御端子が安定電位に接続された第2のトランジスタと、
を備える光送信回路。 - 前記第2のトランジスタの制御端子に接続された出力端子を有し、該出力端子を介して該第2のトランジスタの制御端子に直流電圧を印加する電圧発生回路を更に備える請求項1に記載の光送信回路。
- 前記電圧発生回路はシャントレギュレータであり、
該シャントレギュレータの出力端子と前記電源端子との間に接続された第1の抵抗素子を更に備える請求項2に記載の光送信回路。 - 前記電源端子と前記電圧発生回路の出力端子との間に接続された第1の抵抗素子を更に備える請求項2に記載の光送信回路であって、
前記電圧発生回路は、前記第1の抵抗素子に直列に接続された第2の抵抗素子を含んでおり、
前記第2のトランジスタの制御端子は、前記第1および第2の抵抗素子の間に接続されている、請求項2に記載の光送信回路。 - 前記第1のトランジスタと前記第2のトランジスタとの間に直列に挿入されたインダクタを更に備える、請求項1〜4のいずれかに記載の光送信回路。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006165171A JP4337842B2 (ja) | 2006-06-14 | 2006-06-14 | 光送信回路 |
US11/808,559 US7978741B2 (en) | 2006-06-14 | 2007-06-11 | Optical transmitter with a shunt driving configuration and a load transistor operated in common gate mode |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006165171A JP4337842B2 (ja) | 2006-06-14 | 2006-06-14 | 光送信回路 |
Publications (2)
Publication Number | Publication Date |
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JP2007336217A true JP2007336217A (ja) | 2007-12-27 |
JP4337842B2 JP4337842B2 (ja) | 2009-09-30 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2006165171A Active JP4337842B2 (ja) | 2006-06-14 | 2006-06-14 | 光送信回路 |
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JP (1) | JP4337842B2 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009272321A (ja) * | 2008-04-30 | 2009-11-19 | Sumitomo Electric Ind Ltd | 半導体レーザ駆動回路 |
US8953655B2 (en) | 2012-11-07 | 2015-02-10 | Sumitomo Electric Industries, Ltd. | Optical transmitter suppressing excess emission of laser diode |
CN105490162A (zh) * | 2016-01-30 | 2016-04-13 | 长春理工大学 | 大功率半导体激光高频调制电路 |
-
2006
- 2006-06-14 JP JP2006165171A patent/JP4337842B2/ja active Active
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009272321A (ja) * | 2008-04-30 | 2009-11-19 | Sumitomo Electric Ind Ltd | 半導体レーザ駆動回路 |
US8953655B2 (en) | 2012-11-07 | 2015-02-10 | Sumitomo Electric Industries, Ltd. | Optical transmitter suppressing excess emission of laser diode |
CN105490162A (zh) * | 2016-01-30 | 2016-04-13 | 长春理工大学 | 大功率半导体激光高频调制电路 |
CN105490162B (zh) * | 2016-01-30 | 2019-01-04 | 长春理工大学 | 大功率半导体激光高频调制电路 |
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JP4337842B2 (ja) | 2009-09-30 |
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