JP2023534747A - オプトエレクトロニックモジュール、オプトエレクトロニックモジュールを作動させる方法およびヘッドマウントディスプレイ - Google Patents
オプトエレクトロニックモジュール、オプトエレクトロニックモジュールを作動させる方法およびヘッドマウントディスプレイ Download PDFInfo
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Abstract
Description
オプトエレクトロニックモジュールの少なくとも1つの実施形態によると、オプトエレクトロニックモジュールは、少なくとも1つの半導体レーザおよびフォトニックチップを有する。半導体レーザは、コヒーレント電磁放射の放出用である。フォトニックチップは好ましくは、放射透過性材料と、電磁放射を操作するのに適した光学構造、例えば導波体とを有する。
-半導体レーザは、1次電磁放射を放出し、
-1次電磁放射は、フォトニックチップに入力結合され、
-フォトニックチップは、少なくとも1つの第1導波体と、電気変調信号によって変調される反射率を有する少なくとも1つの光ブラッグ反射器とを有し、
-2次電磁放射は、少なくとも1つの第2導波体によってフォトニックチップから出力結合され、2次電磁放射は、電気変調信号に応じて変調されるドミナント波長を有する。
複数の図において同じ要素、類似の要素または同等の要素には同じ参照符号が付されている。図および図に表されている要素の相互間の比は、縮尺通りであるとみなすべきでない。むしろ、個々の要素は、表し易くするため、かつ/またはわかり易くするために特に大きくされていることがある。
2 光学素子
3 コリメーション光学系
4 ミラー
10 半導体レーザ
10A フロントファセット
20 フォトニックチップ
20A 側面
21 基板
30 ブラッグ反射器
41 第1電気端子
42 第2電気端子
43 第3電気端子
50 結合光学系
60 光変調器
70 光検出器
80 光増幅器
90 充填材料
100 半導体基体
210 第1導波体
210A 入力結合ファセット
220 第2導波体
220A 出力ファセット
230 光偏向器
D1 横方向間隔
Claims (20)
- 少なくとも1つの半導体レーザ(10)およびフォトニックチップ(20)を有するオプトエレクトロニックモジュール(1)であって、
前記半導体レーザ(10)は、1次電磁放射を放出し、
前記1次電磁放射は、前記フォトニックチップ(20)に入力結合され、
前記フォトニックチップ(20)は、少なくとも1つの第1導波体(210)と、電気変調信号によって変調される反射率を有する少なくとも1つの光ブラッグ反射器(30)とを有し、
2次電磁放射は、少なくとも1つの第2導波体(220)によって前記フォトニックチップ(20)から出力結合され、前記2次電磁放射は、前記電気変調信号に応じて変調されるドミナント波長を有する、オプトエレクトロニックモジュール(1)。 - 前記半導体レーザ(10)は、反射防止コーティングによって覆われたフロントファセット(10A)を有する、請求項1記載のオプトエレクトロニックモジュール(1)。
- 前記1次電磁放射は、第1スペクトル帯域幅を有し、前記2次電磁放射は、前記第1スペクトル帯域幅よりも広くかつ前記電気変調信号によって制御される第2スペクトル帯域幅を有する、請求項1または2記載のオプトエレクトロニックモジュール(1)。
- 前記1次電磁放射の前記ドミナント波長および前記第2次電磁放射の前記ドミナント波長は、可視スペクトル領域にある、請求項1から3までのいずれか1項記載のオプトエレクトロニックモジュール(1)。
- 複数の半導体レーザ(10)と、複数の第1導波体(210)と、複数のブラッグ反射器(30)とを有し、1つの前記第1導波体(210)および1つの前記ブラッグ反射器(30)が、それぞれの前記半導体レーザ(10)に割り当てられている、請求項1から4までのいずれか1項記載のオプトエレクトロニックモジュール(1)。
- 複数の前記半導体レーザ(10)は、モノリシックに集積されている、請求項5記載のオプトエレクトロニックモジュール(1)。
- 複数の前記第2導波体(220)が、前記フォトニックチップ(20)の側面(20A)まで延在しておりかつ前記フォトニックチップ(20)の前記側面(20A)において互いに10μm未満の横方向間隔(D1)以内で配置されている、請求項5または6記載のオプトエレクトロニックモジュール(1)。
- 前記第2導波体(220)は、共通出力ファセットを有する共通導波体に前記半導体レーザ(10)の前記2次電磁放射を結合するビームコンバイナーである、請求項5から7までのいずれか1項記載のオプトエレクトロニックモジュール(1)。
- 少なくとも3つの異なる前記半導体レーザ(10)を有し、それぞれの前記半導体レーザ(10)により、異なるドミナント波長を有する1次電磁放射が放出される、請求項5から8までのいずれか1項記載のオプトエレクトロニックモジュール(1)。
- 前記半導体レーザ(10)は、前記フォトニックチップ(20)上に配置されている、請求項1から9までのいずれか1項記載のオプトエレクトロニックモジュール(1)。
- 前記フロントファセット(10A)から前記第1導波体(210)まで延在している領域には、前記1次電磁放射に対して透過である充填材料(90)が充填されている、請求項10記載のオプトエレクトロニックモジュール(1)。
- 前記第1導波体(210)、前記第2導波体(220)および/または前記ブラッグ反射器(30)は、次の材料、すなわち、LiNb,ITO,SiN,SiO,液晶材料のうちの1つから作製される、請求項1から11までのいずれか1項記載のオプトエレクトロニックモジュール(1)。
- 前記第1導波体(210)は、単一モード導波体である、請求項1から12までのいずれか1項記載のオプトエレクトロニックモジュール(1)。
- 前記第1導波体(210)は、前記フロントファセット(10A)から前記ブラッグ反射器(30)に向かって先細りになっている、請求項1から13までのいずれか1項記載のオプトエレクトロニックモジュール(1)。
- 前記フォトニックチップ(20)は、ケイ素、ガラスまたはサファイアから作製される基板(21)を有する、請求項1から14までのいずれか1項記載のオプトエレクトロニックモジュール(1)。
- 前記フォトニックチップ(20)は、前記ブラッグ反射器(30)の下流に少なくとも1つの光変調器(60)を有する、請求項1から15までのいずれか1項記載のオプトエレクトロニックモジュール(1)。
- 前記フォトニックチップ(20)は、前記フォトニックチップ(20)の主延在面から前記2次電磁放射を偏向する光偏向器(230)を有する、請求項1から16までのいずれか1項記載のオプトエレクトロニックモジュール(1)。
- 請求項1から17までのいずれか1項記載のオプトエレクトロニックモジュール(1)を作動させる方法であって、前記ブラッグ反射器(30)により、1ns当たり少なくとも2nmの変調速度で前記2次電磁放射の前記ドミナント波長を変調する、方法。
- 請求項1から17までのいずれか1項記載のオプトエレクトロニックモジュール(1)を作動させる方法であって、前記ブラッグ反射器(30)により、少なくとも10nmのスペクトル領域内で前記2次電磁放射の前記ドミナント波長を変調する、方法。
- 請求項1から17までのいずれか1項記載のオプトエレクトロニックモジュール(1)を有するヘッドマウントディスプレイ。
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PCT/EP2021/072512 WO2022063483A1 (en) | 2020-09-22 | 2021-08-12 | Optoelectronic module, method for operating an optoelectronic module and head-mounted display |
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