MIOMD-XI Speakers    
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1.  Dr. Jerry Meyer, Naval Research Lab. USA
Late-Breaking Results: Corrugated-Sidewall Interband Cascade Lasers Emitting > 50 mW cw in a Single Spectral Mode
Speaker Biography: Jerry R. Meyer completed his Ph.D. in Physics at Brown University in 1977. Since then he has carried out basic and applied research at the Naval Research Laboratory in Washington DC, where he is the Navy Senior Scientist for Quantum Electronics (ST) and Acting Head of the Quantum Optoelectronics Section. His investigations have focused on semiconductor optoelectronic materials and devices, such as the development of new classes of semiconductor lasers and detectors for the infrared. He is a Fellow of OSA, APS, IEEE, IOP, and SPIE. He has co-authored over 340 refereed journal articles, 14 book chapters, 27 patents (4 licensed), and over 130 invited conference presentations.

Summary: Mid-IR interband cascade lasers (ICLs) incorporating “carrier rebalanced” designs, epitaxial-side-down mounting, and other improvements have recently displayed pulsed threshold current densities as low as 134 A/cm2 at 300 K and maximum cw operating temperatures as high as 119 °C. However, the application of these devices to trace gas sensing based on laser spectroscopy will also require operation in a single spectral mode, with output in a narrow line whose wavelength can be tuned, e.g., by varying the injection current and/or thermoelectric cooler temperature. While the powers required by some detection systems are quite modest ( 1 mW), remote sensing will generally require somewhat higher single-mode laser powers. In previous work, we reported the etching of a corrugated pattern into the sidewalls of narrow ICL ridges to serve the dual purpose of suppressing higher-order lateral lasing modes, by increasing their loss, and also forming a 4th-order distributed feedback (DFB) grating to select a single longitudinal mode [2]. Devices employing this approach emitted up to 12 mW cw in a single spectral mode at room temperature and 45 mW at -20oC with a tuning range of 11 nm.
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