JP6443955B2 - 半導体レーザ装置 - Google Patents
半導体レーザ装置 Download PDFInfo
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- JP6443955B2 JP6443955B2 JP2017542755A JP2017542755A JP6443955B2 JP 6443955 B2 JP6443955 B2 JP 6443955B2 JP 2017542755 A JP2017542755 A JP 2017542755A JP 2017542755 A JP2017542755 A JP 2017542755A JP 6443955 B2 JP6443955 B2 JP 6443955B2
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Description
Claims (8)
- 単一モードで発振する半導体レーザが形成された第1の基板と、
前記半導体レーザからの出力光の一部を一定の光路長を伝搬させた後で、前記半導体レーザへ帰還するように構成された光波回路が形成された、Siからなる第2の基板と、
前記第1の基板および前記第2の基板を搭載した第3の基板と
を備え、
前記第1の基板の前記半導体レーザからの出力光と、前記第2の基板の前記光波回路の入力導波路とが光学的に結合していることを特徴とする半導体レーザ装置。 - 前記第2の基板上の前記光波回路は、前記伝搬させた光を反射する反射器を含み、前記反射器で反射された光が、前記半導体レーザへ帰還するように構成されたことを特徴とする請求項1に記載の半導体レーザ装置。
- 前記第2の基板上の前記光波回路は、前記半導体レーザからの前記出力光を分岐して前記出力光の前記一部を生成する分岐手段を有することを特徴とする請求項1または2に記載の半導体レーザ装置。
- 前記第1の基板は、前記半導体レーザからの前記出力光を2つに分岐して、一方の分岐光として前記第2の基板の前記出力光の前記一部を生成し、他方の分岐光として当該半導体レーザ装置の出力光を生成する分岐手段を有し、
前記分岐手段の前記一方の分岐光を増幅する第1の半導体光増幅器と、前記分岐手段の前記他方の分岐光を増幅する第2の半導体光増幅器とを有すること
を特徴とする請求項1または2に記載の半導体レーザ装置。 - 前記第1の基板の前記半導体レーザからの前記出力光と、前記第2の基板の前記光波回路の前記入力導波路とが、前記第1の基板の端面および当該端面と対向する前記第2の基板の端面の間で結合していることを特徴とする請求項1乃至4いずれかに記載の半導体レーザ装置。
- 前記半導体レーザは、回折格子による波長選択機能を備えた分布帰還型(DFB)レーザまたは分布反射型(DBR)レーザであることを特徴とする請求項1乃至5いずれかに記載の半導体レーザ装置。
- 前記半導体レーザは、N個の分布帰還型(DFB)レーザアレイ、前記N個のDFBレーザアレイからの各出力光を合波するよう構成された光合波器および半導体光増幅器が集積され、波長可変レーザとして動作することを特徴とする請求項1乃至6いずれかに記載の半導体レーザ装置。
- 前記半導体レーザは、N個の分布反射型(DBR)レーザアレイ、前記N個のDBRレーザアレイからの各出力光を合波するよう構成された光合波器および半導体光増幅器が集積され、波長可変レーザとして動作することを特徴とする請求項1乃至6いずれかに記載の半導体レーザ装置。
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