| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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High Power Surface Metal Grating Distributed Feedback Quantum Cascade Lasers Emitting at λ～8.3 μm |
| YAO Dan-Yang, LIU Feng-Qi**, ZHANG Jin-Chuan**, WANG Li-Jun,LIU Jun-Qi, WANG Zhan-Guo |
| Key Laboratory of Semiconductor Materials Science, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083 |
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| Cite this article: |
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YAO Dan-Yang, LIU Feng-Qi, ZHANG Jin-Chuan et al 2012 Chin. Phys. Lett. 29 094205 |
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Abstract We present a surface metal grating distributed feedback quantum cascade laser emitting at λ～8.3 μm and operating above 400 K in pulsed mode. A very high peak power of 463 mW at 290 K and still more than 18 mW at 400 K is achieved for a high-reflectivity-coated 13-μm -wide and 2.5-mm-long laser. Single-mode emission with a high side mode suppression ratio and wide temperature tuning range is observed. Such a high-power single-mode laser with a simple device process is important for practical applications.
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Received: 13 June 2012
Published: 01 October 2012
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| PACS: |
42.55.Px
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(Semiconductor lasers; laser diodes)
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42.60.Pk
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(Continuous operation)
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