Details

Autor(en) / Beteiligte

• Gong, Jingli
• Yang, Rui Q.
• Wang, Zhanyi
• He, Jian-Jun

Titel

Single-mode tunable interband cascade laser emitting at 3.4 μm with a wide tuning range over 100 nm

Ist Teil von

• IEEE photonics technology letters, 2023-03, Vol.35 (6), p.1-1

Ort / Verlag

New York: IEEE

Erscheinungsjahr

2023

Quelle

IEEE Electronic Library (IEL)

Beschreibungen/Notizen

• We report a widely tunable monolithically integrated V-coupled cavity interband cascade laser (ICL) emitting near 3.4 μm. The mode selection is achieved using a half-wave V-coupler designed for the ICL in the mid-infrared range without any grating. The side-mode suppression ratio is demonstrated up to 35.7 dB. In the heat-sink temperature range from 130 K to 140 K, single-mode wavelength tuning range of over 100 nm from 3329.9 nm to 3431.3 nm has been attained by adjusting both current and temperature. These results show that the V-coupled cavity ICLs are very promising for multi-species trace gas absorption spectroscopy with a high sensitivity.