NDLI: Passively mode-locked monolithic two-section gain-guided tapered quantum-dot lasers: II. Record 15 Watt peak power generation

Content Provider	IEEE Xplore Digital Library
Author	Nikitichev, D.I. Ruiz, M. Ding, Y. Tran, M. Robert, Y. Krakowski, M. Rossetti, M. Bardella, P. Montrosset, I. Krestnikov, I. Livshits, D. Cataluna, M.A. Rafailov, E.U.
Copyright Year	2011
Description	Author affiliation: Alcatel Thales III-V Lab, 1 Av Augustin Fresnel, Campus de Polytechnique, 91767 Palaiseau, France (Ruiz, M.; Tran, M.; Robert, Y.; Krakowski, M.) \|\| Politecnico di Torino, Dipartimento di Elettronica, Turin, Italy (Rossetti, M.; Bardella, P.; Montrosset, I.) \|\| Innolume GmbH, Konrad-Adenauer-Allee 11, 44263 Dortmund, Germany (Krestnikov, I.; Livshits, D.) \|\| University of Dundee, School of Engineering, Physics and Mathematics, DD1 4HN, UK (Nikitichev, D.I.; Ding, Y.; Cataluna, M.A.; Rafailov, E.U.)
Abstract	In recent years, quantum-dot (QD) mode-locked semiconductors lasers have shown great potential as ultrashort pulse laser sources [1]. For instance, the generation of ultrashort transform-limited pulses with pulse durations of 360 fs has been previously demonstrated in tapered index-guided mode-locked quantum-dot lasers without any dispersion compensation - however, peak power reached only 2.25 W, for a typical average power of 15.6 mW [2]. In our recent work, we have shown that output average/peak power and pulse energy can be greatly increased using a tapered (or flared) gain-guided structure [3]. In [3], two-section devices incorporating 5 or 10 QD layers with a total length of ∼2.78mm were used, resulting in pulse repetition rates of the order of 14.6 GHz. With an absorber-to-gain lengths ratio of 1∶7, the highest peak power achieved was 3.6W from both QD structures. On the other hand, a maximum average power of 209 mW corresponding to 14.2 pJ pulse energy with 6-ps pulse duration was achieved for the 5-layer QD laser. The generation of high-peak-power pulses is vital for a variety of applications such as biomedical nonlinear microscopy and imaging, where a combination of high peak power and average power (up to the limit tolerable by the bio-sample) are most effective in enhancing the nonlinear effects required. In this paper, we report the highest peak power (to our knowledge) of 15 W directly from a monolithic quantum-dot tapered laser, with sub-picosecond pulse width.
Starting Page	1
Ending Page	1
File Size	156796
Page Count	1
File Format	PDF
ISBN	9781457705335
e-ISBN	9781457705328
DOI	10.1109/CLEOE.2011.5942560
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-05-22
Publisher Place	Germany
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Radio frequency Quantum dot lasers Laser mode locking Power lasers Optical pulse generation Physics Optical pulses
Content Type	Text
Resource Type	Article

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