JP4907914B2 - 光検出回路 - Google Patents
光検出回路 Download PDFInfo
- Publication number
- JP4907914B2 JP4907914B2 JP2005203520A JP2005203520A JP4907914B2 JP 4907914 B2 JP4907914 B2 JP 4907914B2 JP 2005203520 A JP2005203520 A JP 2005203520A JP 2005203520 A JP2005203520 A JP 2005203520A JP 4907914 B2 JP4907914 B2 JP 4907914B2
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- photodiode
- output
- level
- transistor
- 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.)
- Active
Links
- 230000010354 integration Effects 0.000 claims description 41
- 238000001514 detection method Methods 0.000 claims 1
- 230000003071 parasitic effect Effects 0.000 description 8
- 230000010355 oscillation Effects 0.000 description 7
- 239000003990 capacitor Substances 0.000 description 6
- 230000002159 abnormal effect Effects 0.000 description 5
- 238000009825 accumulation Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/60—Receivers
- H04B10/66—Non-coherent receivers, e.g. using direct detection
- H04B10/69—Electrical arrangements in the receiver
- H04B10/693—Arrangements for optimizing the preamplifier in the receiver
- H04B10/6931—Automatic gain control of the preamplifier
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/60—Receivers
- H04B10/66—Non-coherent receivers, e.g. using direct detection
- H04B10/69—Electrical arrangements in the receiver
- H04B10/691—Arrangements for optimizing the photodetector in the receiver
- H04B10/6911—Photodiode bias control, e.g. for compensating temperature variations
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Light Receiving Elements (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
- Amplifiers (AREA)
Description
Claims (3)
- 光検出回路において、
ホトダイオードの一端に接続された積分回路と、
前記ホトダイオードと前記積分回路との間に介在するトランジスタと、
前記トランジスタと前記ホトダイオードとの間に介在する抵抗素子と、
前記トランジスタの制御端子に接続された出力端子、前記抵抗素子と前記トランジスタとの間の節点に接続された第1入力端子、及び、前記ホトダイオードの他端に短絡する第2入力端子を有するオペアンプと、
を備えることを特徴とする光検出回路。 - 前記積分回路の出力が入力される比較器と、
前記比較器の出力に応じて前記積分回路をリセットするリセット信号発生手段と、
を備え、
前記ホトダイオードで発生した光電流の周波数への変換を行うことを特徴とする請求項1に記載の光検出回路。 - 前記トランジスタと前記積分回路との間に、前記ホトダイオードを流れる電流を制限するリミッタ回路を設けたことを特徴とする請求項1又は2に記載の光検出回路。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005203520A JP4907914B2 (ja) | 2005-07-12 | 2005-07-12 | 光検出回路 |
PCT/JP2006/313760 WO2007007747A1 (ja) | 2005-07-12 | 2006-07-11 | 光検出回路 |
EP06768073.6A EP1906458B1 (en) | 2005-07-12 | 2006-07-11 | Photodetection circuit |
US11/995,267 US8143564B2 (en) | 2005-07-12 | 2006-07-11 | Photodetection circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005203520A JP4907914B2 (ja) | 2005-07-12 | 2005-07-12 | 光検出回路 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2007027209A JP2007027209A (ja) | 2007-02-01 |
JP4907914B2 true JP4907914B2 (ja) | 2012-04-04 |
Family
ID=37637137
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2005203520A Active JP4907914B2 (ja) | 2005-07-12 | 2005-07-12 | 光検出回路 |
Country Status (4)
Country | Link |
---|---|
US (1) | US8143564B2 (ja) |
EP (1) | EP1906458B1 (ja) |
JP (1) | JP4907914B2 (ja) |
WO (1) | WO2007007747A1 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5529203B2 (ja) * | 2011-09-21 | 2014-06-25 | シャープ株式会社 | 光センサおよび電子機器 |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5821800B2 (ja) * | 1976-05-28 | 1983-05-04 | 株式会社ニコン | 自動調光フラツシユ装置の光量積分回路 |
JPS6014399B2 (ja) * | 1978-05-04 | 1985-04-12 | ホーチキ株式会社 | 物理的変化量の監視装置 |
JPS59160108A (ja) * | 1983-03-02 | 1984-09-10 | Canon Inc | 光半導***置検出素子の信号処理回路 |
JPS62285537A (ja) * | 1986-06-03 | 1987-12-11 | Sumitomo Electric Ind Ltd | 光受信回路 |
JPS6381225A (ja) * | 1986-09-25 | 1988-04-12 | Canon Inc | 測光装置 |
JPS63204131A (ja) * | 1987-02-19 | 1988-08-23 | Olympus Optical Co Ltd | 光電変換素子アレイの蓄積時間制御装置 |
JPH0264422A (ja) * | 1988-08-31 | 1990-03-05 | Iwasaki Electric Co Ltd | 光一周波数変換器 |
JPH0522232A (ja) * | 1991-07-10 | 1993-01-29 | Mitsubishi Electric Corp | 光受信回路 |
JPH07245540A (ja) * | 1994-01-12 | 1995-09-19 | Fujitsu Ltd | 光ディジタル通信用の光受信装置 |
JP2000068947A (ja) * | 1998-08-26 | 2000-03-03 | Sanyo Electric Co Ltd | 受光用半導体集積回路 |
FR2783373B1 (fr) | 1998-09-11 | 2002-10-31 | Dassault Electronique | Dispositif d'interface entre un capteur optoelectronique hyperfrequence a large bande et une charge |
JP4086265B2 (ja) * | 1999-03-19 | 2008-05-14 | 株式会社東芝 | 光信号受信装置 |
JP3775574B2 (ja) * | 2001-05-22 | 2006-05-17 | シャープ株式会社 | 光結合装置 |
US20030178552A1 (en) * | 2002-02-08 | 2003-09-25 | Hofmeister Rudolf J. | High dynamic range optical signal receiver |
JP4127480B2 (ja) * | 2002-04-23 | 2008-07-30 | オリンパス株式会社 | 測光回路 |
-
2005
- 2005-07-12 JP JP2005203520A patent/JP4907914B2/ja active Active
-
2006
- 2006-07-11 EP EP06768073.6A patent/EP1906458B1/en active Active
- 2006-07-11 US US11/995,267 patent/US8143564B2/en active Active
- 2006-07-11 WO PCT/JP2006/313760 patent/WO2007007747A1/ja active Application Filing
Also Published As
Publication number | Publication date |
---|---|
US20090272878A1 (en) | 2009-11-05 |
EP1906458A4 (en) | 2015-05-13 |
US8143564B2 (en) | 2012-03-27 |
EP1906458A1 (en) | 2008-04-02 |
JP2007027209A (ja) | 2007-02-01 |
WO2007007747A1 (ja) | 2007-01-18 |
EP1906458B1 (en) | 2016-03-23 |
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