JP6681508B1 - 決定方法、及び光検出装置 - Google Patents
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- 238000001514 detection method Methods 0.000 title claims description 26
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- 230000006641 stabilisation Effects 0.000 description 1
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- Electromagnetism (AREA)
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- Microelectronics & Electronic Packaging (AREA)
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Abstract
Description
Claims (4)
- アバランシェフォトダイオードと、前記アバランシェフォトダイオードのブレークダウン電圧と前記アバランシェフォトダイオードに印加するバイアス電圧との差分電圧に基づいて前記バイアス電圧を制御することで前記アバランシェフォトダイオードのゲインの温度補償を行う温度補償部と、を有する光検出装置において、前記差分電圧を決定する決定方法であって、
前記バイアス電圧を“Vr”とし、当該バイアス電圧が印加された前記アバランシェフォトダイオードのゲインを“M”とした場合に、前記バイアス電圧と前記ゲインとの相関を示すデータにおける“(1/M)×(dM/dVr)”を目的変数とし“M”を説明変数とした回帰直線の傾き及び切片を取得することと、
前記傾きを下記式(1)の“a”に、前記切片を下記式(1)の“b”に、前記アバランシェフォトダイオードに設定するゲインを下記式(1)の“Md”に、代入することで演算された“ΔV”を、前記差分電圧として決定することと、
を含む決定方法。 - 前記アバランシェフォトダイオードに設定するゲインとして互いに異なる複数の値を前記式(1)の“Md”にそれぞれ代入することで演算された複数の“ΔV”が、前記複数の値のそれぞれに対応する前記差分電圧として決定される、請求項1に記載の決定方法。
- アバランシェフォトダイオードと、
前記アバランシェフォトダイオードのブレークダウン電圧と前記アバランシェフォトダイオードに印加するバイアス電圧との差分電圧に基づいて前記バイアス電圧を制御することで、前記アバランシェフォトダイオードの温度補償を行う温度補償部と、を備え、
前記温度補償部は、前記バイアス電圧を“Vr”とし当該バイアス電圧が印加された前記アバランシェフォトダイオードのゲインを“M”とした場合に、前記差分電圧が、前記バイアス電圧と前記ゲインとの相関を示すデータについて、“(1/M)×(dM/dVr)”を目的変数とし“M”を説明変数とした回帰直線の傾きを下記式(2)の“a”に、前記回帰直線の切片を下記式(2)の“b”に、前記アバランシェフォトダイオードに設定するゲインを下記式(2)の“Md”に代入することで演算された“ΔV”となるように、前記バイアス電圧を制御する、
光検出装置。 - 前記アバランシェフォトダイオードに設定するゲインに応じて、前記温度補償部を設定する設定部と、
前記温度補償部と前記アバランシェフォトダイオードとを電気的に接続する配線部と、をさらに備え、
前記温度補償部は、互いに異なるブレークダウン電圧を有する複数の温度補償用ダイオードを有し、
前記配線部は、各前記温度補償用ダイオードのブレークダウン電圧に応じた電圧を前記アバランシェフォトダイオードにバイアス電圧として印加し、
前記設定部は、前記アバランシェフォトダイオードに設定するゲインを前記式(2)の“Md”に代入することで演算される“ΔV”が前記差分電圧となるように、前記複数の温度補償用ダイオードから前記バイアス電圧の制御に用いる前記温度補償用ダイオードを設定する、請求項3に記載の光検出装置。
Priority Applications (5)
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CN201980082092.3A CN113302462B (zh) | 2018-12-12 | 2019-11-29 | 决定方法及光检测装置 |
EP19897203.6A EP3988909B1 (en) | 2018-12-12 | 2019-11-29 | Determination method and light detection device |
PCT/JP2019/046901 WO2020121855A1 (ja) | 2018-12-12 | 2019-11-29 | 決定方法、及び光検出装置 |
US17/311,766 US11561131B2 (en) | 2018-12-12 | 2019-11-29 | Determination method and light detection device |
TW108144638A TWI851628B (zh) | 2018-12-12 | 2019-12-06 | 決定方法及光檢測裝置 |
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EP (3) | EP3988909B1 (ja) |
JP (5) | JP7454917B2 (ja) |
KR (2) | KR20210098524A (ja) |
CN (5) | CN113167640B (ja) |
DE (2) | DE112019006173T5 (ja) |
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WO2020121858A1 (ja) | 2018-12-12 | 2020-06-18 | 浜松ホトニクス株式会社 | 光検出装置及び光検出装置の製造方法 |
WO2020121852A1 (ja) * | 2018-12-12 | 2020-06-18 | 浜松ホトニクス株式会社 | 光検出装置 |
JP7454917B2 (ja) | 2018-12-12 | 2024-03-25 | 浜松ホトニクス株式会社 | 光検出装置 |
US12113088B2 (en) | 2018-12-12 | 2024-10-08 | Hamamatsu Photonics K.K. | Light detection device |
US20220020786A1 (en) * | 2018-12-12 | 2022-01-20 | Hamamatsu Photonics K.K. | Photodetector and method for manufacturing photodetector |
CN117501149A (zh) * | 2021-06-21 | 2024-02-02 | 索尼半导体解决方案公司 | 光接收元件 |
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