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    Lasing dynamics of very long (13.5mm) tapered laser emitting at 975 nm

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    Author
    Krakowski, Michel; Resneau, Patrick; Garcia, Michel; Vinet, Eric; Robert, Yannick; Lecomte, Michel; Parillaud, Olivier; Gerard, Bruno; Boiko, Dmitri L.
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    Abstract
    Mode-locked semiconductor laser technology is a promising technology candidate considered by European Space Agency (ESA) for optical metrology systems and other space applications in the context of high-precision optical metrology, in particular for High Accuracy Absolute Long Distance Measurement. For these applications, we have designed, realized and characterized a multi-section monolithic-cavity tapered laser diode with a record cavity length of 13.5mm. The laser operates at 975nm wavelength with average output power up to 600mW. It is based on a MOVPE grown laser structure with Aluminium free active region enabling high optical gain, low internal losses and low series resistance. It reaches passive mode-locking operation on fundamental cavity round trip frequency of 2.88GHz with chirped pulse width of 6.2ps and time bandwidth product of 8 for the average output power of 250mW. Alongside with passive mode-locking operation, we discuss other lasing regimes in these very long tapered lasers.
    Publication Reference
    Novel In-Plane Semiconductor Lasers XVI, San Francisco, CA (USA), pp. 101230E
    Year
    2017-02-20
    URI
    https://yoda.csem.ch/handle/20.500.12839/868
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