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External cavity coherent quantum cascade laser array
Affiliation:1. Groupe de Spectrométrie Moléculaire et Atmosphérique (GSMA), CNRS – UMR 7331, Université de Reims Champagne-Ardenne, UFR Sciences Exactes et Naturelles, Moulin de la Housse, BP 1039, F-51687 Reims cedex 2, France;2. III-V Lab, Route Départementale 128, F-91767 Palaiseau Cedex, France;1. Centre for Research in Nanotechnology and Sciences, Indian Institute of Technology Bombay, Mumbai 400076, India;2. Department of Electronics and Communication Engineering, Kalyani Government Engineering College, Nadia, West Bengal 741235, India;3. Department of Electrical Engineering, Indian Institute of Technology Bombay, Mumbai 400076, India;1. Electrical and Electronics Engineering Dept., Faculty of Engineering and Natural Sciences, Bahcesehir University, 34353 Istanbul, Turkey;2. Electrical and Electronics Engineering Dept., School of Engineering, Abdullah Gul University, 38039 Kayseri, Turkey;1. Razak Faculty of Technology and Informatics, Universiti Teknologi Malaysia, Jalan Sultan Yahya Petra, 54100, Kuala Lumpur, Malaysia;2. Institute of Power Engineering, Universiti Tenaga Nasional, Jalan Ikram-Uniten, 43000, Kajang, Selangor, Malaysia;3. Faculty of Engineering, Sohar University, PO Box 44, Sohar, PC 311, Oman;4. Wireless and Photonic Networks Research Center, Faculty of Engineering, University Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia;1. Development of Mechanical and Automotive Engineering, Jeonju University, Jeonju 55069, Republic of Korea;2. CF Technical Division, AUK Corporation, Iksan 54630, Republic of Korea;1. Department of Electronics, Banasthali Vidyapith, Banasthali 304022, Rajasthan, India;2. Department of Physics, S.S.Jain Subodh PG College, Jaipur 302004, Rajasthan, India;3. Department of Physics, Govt. Degree College, Shahpur 176206, Kangra, Himachal Pradesh, India;4. Department of Physics, Banasthali Vidyapith, Banasthali 304022, Rajasthan, India
Abstract:We report on the development of a coherent quantum cascade laser array that consists in the fabrication of multi-stripes array. The main characteristic of this kind of source is that an anti-symmetrical signature with two lobes is obtained in the far field. Taking advantage of this drawback, a grating is aligned with one lobe of the source. Thus a Littrow configuration is designed that permit to obtain a wide tunability of the source. First results are presented and a preliminary test of the source is realized by measurements on acetone.
Keywords:Quantum cascade laser  Laser array  Gas detection  Infrared Spectroscopy
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