[17p-B403-1~17] 3.5 レーザー装置・材料

[17p-B403-4] 中赤外広帯域反射防止膜と量子カスケードレーザーでの応用

〇(D)松岡 洋平¹、Sven Peter²、Mykhaylo Semtsiv¹、W. Ted Masselink¹ (1.Humboldt Univ. of Berlin、2.Sentech Instruments GmbH)

キーワード：量子カスケードレーザー、外部共振器型レーザー、中赤外反射防止膜

The external cavity quantum cascade laser (EC-QCL) is quite attractive as a coherent light source for mid-infrared applications. For EC-QCLs, reducing the facet reflectivity is strongly required to improve the laser performance. We will present broadband mutillayer anti-reflection coating designed for a broad gain QCL facet, contributing the broader tunablity and higher output power.