Passively mode-locked interband cascade lasers
作者： Mahmood Bagheri , Clifford Frez , Igor Vurgaftman , Jonas Westberg , Lukasz A. Sterczewski
DOI: 10.1117/12.2510060
关键词: Physics 、 Saturable absorption 、 Optoelectronics 、 Interband cascade laser 、 Cascade 、 Mode-locking 、 Laser 、 Terahertz radiation 、 Span (engineering) 、 Chip
摘要: Optical frequency combs have revolutionized the field of high resolution real-time molecular spectroscopy. Here, we demonstrate an electrically-driven optical comb whose sub-picosecond pulses span more than 1 THz spectral bandwidth centered near 3.3 mm. This is achieved by passively mode locking interband cascade laser in a multi-contact architecture with gain and saturable absorber sections monolithically integrated on same chip.
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