JP2015175960A - 半導体光変調装置 - Google Patents
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Abstract
【解決手段】半導体光変調素子1の一端が基準電位に接続されている。抵抗2が半導体光変調素子1に並列に接続され、その一端が基準電位に接続されている。伝送線路3の一端が半導体光変調素子1の他端と抵抗2の他端に接続されている。伝送線路4が伝送線路3に直列に接続され、その一端が伝送線路3の他端に接続されている。伝送線路4は抵抗2よりも低いインピーダンスを持つ。伝送線路5が伝送線路3,4に直列に接続され、その一端が伝送線路4の他端に接続されている。伝送線路5は伝送線路3と等しいインピーダンスを持つ。抵抗6及び容量7が伝送線路5と基準電位との間に直列に接続されている。
【選択図】図1
Description
図1は、本発明の実施の形態1に係る半導体光変調装置を示す回路図である。ダイオードである半導体光変調素子1のカソードが基準電位に接続されている。抵抗2が半導体光変調素子1に並列に接続され、その一端が基準電位に接続されている。伝送線路3の一端が半導体光変調素子1のアノードと抵抗2の他端に接続されている。
2×L1×√εr=1/2×c/f (数式1)
ここで、伝送線路3の長さをL1、比誘電率をεr、周波数をf、電気の速度をcとする。
Z1=R1+1/(2jπfC) (数式2)
図5は、抵抗及び容量の直列回路の特性を示す図である。抵抗の抵抗値を220Ω、容量の容量値を0.1pFとした。
図10は、本発明の実施の形態2に係る半導体光変調装置を示す平面図である。図11は、本発明の実施の形態2に係るフレキシブル基板を示す側面図である。本実施の形態に係る半導体光変調装置の回路構成は図1と同様である。
C=ε×εr×S/d=0.177pF (数式3)
実施の形態2では、フレキシブル基板10上に設けられた伝送線路5、フレキシブル基板10上に抵抗6として設けられたチップ部品、フレキシブル基板10上に容量7として設けられた配線パターンを用いる例を示したが、本実施の形態では、フレキシブル基板10の代わりに誘電体基板を用い、誘電体基板上に抵抗6として設けられた薄膜抵抗、誘電体基板上に容量7として設けられた配線パターンを用いる。なお、配線パターンは図10の矩形形状の代わりに、櫛歯状にしてもよい。
図12は、本発明の実施の形態4に係る半導体光変調装置を示す回路図である。半導体光変調素子1の一端が基準電位に接続されている。抵抗2が半導体光変調素子1に並列に接続され、その一端が基準電位に接続されている。伝送線路15の一端が半導体光変調素子1の他端と抵抗2の他端に接続されている。抵抗6及び容量7が伝送線路15と基準電位との間に直列に接続されている。伝送線路16が伝送線路15に直列に接続され、伝送線路16の一端が伝送線路15の他端に接続されている。抵抗17及びインダクタ18が伝送線路16と基準電位との間に直列に接続されている。
Z2=R2+2jπfL (数式4)
図19は、本発明の実施の形態5に係る半導体光変調装置を示す平面図である。本実施の形態に係る半導体光変調装置の回路構成は図12と同様である。半導体光変調素子1、抵抗2,6、伝送線路15、容量7、及び基準電位を持つ基準電位配線パターン11が誘電体基板12上に設けられている。半導体光変調素子1は、抵抗2と伝送線路3にそれぞれワイヤ13,14により接続されている。抵抗2,6は誘電体基板12上に設けられた薄膜抵抗である。容量7は基準電位配線パターン11と近接しながら誘電体基板12上に設けられた櫛歯状の配線パターンである。なお、伝送線路15に接続された伝送線路16、抵抗17及びインダクタ18は図示していない。
Claims (5)
- 一端が基準電位に接続された半導体光変調素子と、
前記半導体光変調素子に並列に接続され、一端が基準電位に接続された第1の抵抗と、
一端が前記半導体光変調素子の他端と前記第1の抵抗の他端に接続された第1の伝送線路と、
前記第1の伝送線路に直列に接続され、一端が前記第1の伝送線路の他端に接続され、前記第1の抵抗よりも低いインピーダンスを持つ第2の伝送線路と、
前記第1及び第2の伝送線路に直列に接続され、一端が前記第2の伝送線路の他端に接続され、前記第1の伝送線路と等しいインピーダンスを持つ第3の伝送線路と、
前記第3の伝送線路と基準電位との間に直列に接続された第2の抵抗及び容量とを備えることを特徴とする半導体光変調装置。 - 前記第3の伝送線路はフレキシブル基板上に設けられ、前記第2の抵抗は前記フレキシブル基板上に設けられたチップ部品であり、前記容量は前記フレキシブル基板上に設けられた配線パターンであることを特徴とする請求項1に記載の半導体光変調装置。
- 前記第3の伝送線路は誘電体基板上に設けられ、前記第2の抵抗は前記誘電体基板上に設けられた薄膜抵抗であり、前記容量は前記誘電体基板上に設けられた配線パターンであることを特徴とする請求項1に記載の半導体光変調装置。
- 一端が基準電位に接続された半導体光変調素子と、
前記半導体光変調素子に並列に接続され、一端が基準電位に接続された第1の抵抗と、
一端が前記半導体光変調素子の他端と前記第1の抵抗の他端に接続された第1の伝送線路と、
前記第1の伝送線路と基準電位との間に直列に接続された第2の抵抗及び容量と、
前記第1の伝送線路に直列に接続され、一端が前記第1の伝送線路の他端に接続された第2の伝送線路と、
前記第2の伝送線路と基準電位との間に直列に接続された第3の抵抗及びインダクタとを備えることを特徴とする半導体光変調装置。 - 前記第1の伝送線路は誘電体基板上に設けられ、前記第1及び第2の抵抗は前記誘電体基板上に設けられた薄膜抵抗であり、前記容量は前記誘電体基板上に設けられた配線パターンであることを特徴とする請求項4に記載の半導体光変調装置。
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014051965A JP6299301B2 (ja) | 2014-03-14 | 2014-03-14 | 半導体光変調装置 |
| US14/584,457 US9804422B2 (en) | 2014-03-14 | 2014-12-29 | Semiconductor optical modulation device |
| CN201510111864.5A CN104916769B (zh) | 2014-03-14 | 2015-03-13 | 半导体光调制装置 |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014051965A JP6299301B2 (ja) | 2014-03-14 | 2014-03-14 | 半導体光変調装置 |
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| Publication Number | Publication Date |
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| JP2015175960A true JP2015175960A (ja) | 2015-10-05 |
| JP6299301B2 JP6299301B2 (ja) | 2018-03-28 |
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| US (1) | US9804422B2 (ja) |
| JP (1) | JP6299301B2 (ja) |
| CN (1) | CN104916769B (ja) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020111257A1 (ja) * | 2018-11-30 | 2020-06-04 | 京セラ株式会社 | 配線基板、電子部品搭載用パッケージおよび電子装置 |
| CN113644140A (zh) * | 2020-04-24 | 2021-11-12 | 日本剑桥光电有限公司 | 光模块 |
| WO2023248489A1 (ja) * | 2022-06-21 | 2023-12-28 | 日本電信電話株式会社 | 光変調器 |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6614109B2 (ja) * | 2016-11-21 | 2019-12-04 | 株式会社村田製作所 | 無線回路搭載電子機器 |
| JP7274313B2 (ja) * | 2019-03-12 | 2023-05-16 | 日置電機株式会社 | 電流センサ及び測定装置 |
| CN113433758A (zh) * | 2020-03-23 | 2021-09-24 | 华星光通科技股份有限公司 | 增加电致吸收光调变器频宽的方法及其元件结构和制程 |
| US20230251509A1 (en) * | 2020-12-09 | 2023-08-10 | Mitsubishi Electric Corporation | Semiconductor light modulating apparatus |
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| CN113169130A (zh) * | 2018-11-30 | 2021-07-23 | 京瓷株式会社 | 布线基板、电子部件搭载用封装件以及电子装置 |
| JPWO2020111257A1 (ja) * | 2018-11-30 | 2021-10-14 | 京セラ株式会社 | 配線基板、電子部品搭載用パッケージおよび電子装置 |
| JP7119119B2 (ja) | 2018-11-30 | 2022-08-16 | 京セラ株式会社 | 配線基板、電子部品搭載用パッケージおよび電子装置 |
| CN113169130B (zh) * | 2018-11-30 | 2023-10-17 | 京瓷株式会社 | 布线基板、电子部件搭载用封装件以及电子装置 |
| CN113644140A (zh) * | 2020-04-24 | 2021-11-12 | 日本剑桥光电有限公司 | 光模块 |
| WO2023248489A1 (ja) * | 2022-06-21 | 2023-12-28 | 日本電信電話株式会社 | 光変調器 |
| WO2023248360A1 (ja) * | 2022-06-21 | 2023-12-28 | 日本電信電話株式会社 | 光変調器 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP6299301B2 (ja) | 2018-03-28 |
| US9804422B2 (en) | 2017-10-31 |
| CN104916769B (zh) | 2018-01-09 |
| CN104916769A (zh) | 2015-09-16 |
| US20150261016A1 (en) | 2015-09-17 |
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