Interband Cascade Lasers are now available as a broad gain lasers suitable for use in an external cavity.
Interband Cascade Lasers are available as a broad gain lasers suitable for use in an external cavity. You can find here a recent Optics Express article available in open access describing the performance of the external cavity system, or come to Photonics West 2022 to see a talk by the main author in the Novel In-Plane Semiconductor Lasers XXI session.
![BG-3.2-3.6 Spectrum](https://www.alpeslasers.ch/wp-content/uploads/2021/11/bg_3.2_3.6_e103_5ab_dg40_cw-300x222.jpg)
ICL chip BG-3.2-3.6 tuning range in External cavity