diffraction coefficientとは 意味・読み方・使い方

As a result, the active layer can approach the diffraction grating for setting without losing planarity in the active layer, thus making large the coupling coefficient of light in the active layer and diffraction grating, and hence widening the temperature range for signal wavelength oscillation as compared with before.例文帳に追加

その結果、活性層の平坦性を損なうことなく活性層と回折格子を近接して設定できるので、活性層と回折格子の光の結合係数を大きくすることができ、単一波長発振する温度範囲を従来よりも広範囲にすることができる。 - 特許庁

To provide a method for manufacturing a semiconductor element, manufacturing a diffraction grating having its depth (coupling coefficient) easily changing to suppress the concavity and convexity on the surface of the diffraction grating of a manufactured element, and thereby decreasing an optical loss and showing characteristics of a side mode being suppressed.例文帳に追加

簡易に深さ（結合係数）が変化する回折格子の作製することができ、作製された素子の回折格子表面の凹凸が抑制されるため、光損失が低減され、サイドモードが抑制された特性を示す半導体素子の作製方法を提供すること。 - 特許庁

A plane diffraction grating 13 is formed from material having a proper coefficient of linear expansion, and the fluctuation of the wavelength of reflected light by a concave mirror 14 caused by thermal expansion or contraction of members other than the plane diffraction grating 13 is counterbalanced or reduced by the fluctuation of the wavelength of reflected light by the concave mirror 14 caused by thermal expansion or contraction of the plane diffraction grating 13.例文帳に追加

適切な線膨張率を有する材料で平面回折格子１３を形成して、平面回折格子１３以外の部材の熱伸縮に起因する凹面鏡１４の反射光の波長の変動を、平面回折格子１３の熱伸縮に起因する凹面鏡１４の反射光の波長の変動で相殺或いは小さくする。 - 特許庁

In a semiconductor light emitting element in an MQW diffraction grating structure to be used mainly for a gain coupling DFB laser, the well layer of an MQW-A is made thicker than that of the well layer of an MQW-B so that the rate of a gain coupling coefficient to a refractivity coupling coefficient can be increased.例文帳に追加

主に利得結合ＤＦＢレーザに用いられるＭＱＷ回折格子構造の半導体発光素子において、ＭＱＷ−Ｂの井戸層に対してＭＱＷ−Ａの井戸層を厚く形成することにより、屈折率結合係数に対する利得結合係数の割合を大きくする。 - 特許庁

To satisfy a diffraction condition (the sum of optical thicknesses is 1/2 of maximum absorption wavelength λ0) and to ensure a high reflectance even when the optical thickness of a layer having a higher absorption coefficient is made smaller in a multilayer film reflecting mirror obtained by stacking pairs of semiconductor layers different from each other in refractive index and absorption coefficient.例文帳に追加

屈折率および光吸収係数の異なる半導体層の対を反復積層して成る多層膜反射鏡において、光吸収係数の大きい方の層の光学的厚さを小さくしても、回折条件（光学的厚さの和が極大吸収波長λ_0 の１／２）を満たして、高い反射率を得ること。 - 特許庁

The correlation is calculated when the coupling coefficient κ of the diffraction grating layer G_n is constant, when the plurality of grooves 22 have a constant depth D, and when the cladding layer 24 has a band gap wavelength λ_Eclad.例文帳に追加

この相関関係は、回折格子層Ｇ_ｎの結合係数κが一定であり、複数の溝２２の深さＤが一定であり、クラッド層２４のバンドギャップ波長λ_Ｅｃｌａｄが一定である場合に算出される。 - 特許庁

To provide a method of manufacturing a distributed feedback semiconductor laser, which suppresses variations in the coupling coefficient κ of a diffraction grating in a plurality of such DFB (Distributed FeedBack) lasers.例文帳に追加

複数のＤＦＢレーザにおいて回折格子の結合係数κのばらつきを抑制することができる分布帰還型半導体レーザの製造方法を提供する。 - 特許庁

A base material 2 where an optical fiber 1 having a diffraction grating part is composed of a first base material 5 and a second base material 6, having the same negative thermal expansion coefficient.例文帳に追加

回折格子部４を有する光ファイバ１が固定される基材２は、同一の負の熱膨張係数を有する第１基材５と第２基材６とにより構成される。 - 特許庁