Journal ArticleDOI
On-Chip Multiple Colliding Pulse Mode-Locked Semiconductor Laser
Reads0
Chats0
TLDR
In this paper, an on-chip multiple colliding pulse mode-locked semiconductor laser source is reported for the first time to the best of their knowledge, achieving a repetition rate at four times the fundamental round-trip frequency, at 100 GHz using a 25 GHz resonator cavity length.Abstract:
We report for the first time to the best of our knowledge, an on-chip multiple colliding pulse mode-locked semiconductor laser source. The device structure is fully integrated, replacing cleaved facet mirrors by using multimode interference reflectors; this allows us to precisely control the location of the saturable absorbers within the cavity length, which is critical to achieve the multiple colliding regime. In this paper, we succeeded to achieve this regime generating a repetition rate at four times the fundamental round-trip frequency, demonstrating a repetition rate within the millimeter wave frequency range, at 100 GHz using a 25 GHz resonator cavity length. We also demonstrate the advantage of having the signal on-chip including a boost semiconductor optical amplifier in order to increase the output optical power. This novel structure was fabricated on a generic InP photonic integrated technology through a multi-project wafer run.read more
Citations
More filters
Journal ArticleDOI
Ultrafast spin-lasers.
Markus Lindemann,Gaofeng Xu,Tobias Pusch,Rainer Michalzik,Martin R. Hofmann,Igor Žutić,Nils C. Gerhardt +6 more
TL;DR: In this article, the authors show that the coupling between carrier spin and light polarization in common semiconductor spin-laser can enable room-temperature modulation frequencies exceeding 200 GHz.
Journal ArticleDOI
Ultrafast spin-lasers
Markus Lindemann,Gaofeng Xu,Tobias Pusch,Rainer Michalzik,Martin R. Hofmann,Igor Žutić,Nils C. Gerhardt +6 more
TL;DR: Room-temperature modulation frequencies exceeding 200 GHz are demonstrated in birefringent semiconductor spin-lasers by coupling the spin of the charge carriers to the light polarization, overcome the key speed limitations of conventional directly modulated lasers and offer a prospect for the next generation of low-energy ultrafast optical communication.
Journal ArticleDOI
Mode-locked laser with pulse interleavers in a monolithic photonic integrated circuit for millimeter wave and terahertz carrier generation.
TL;DR: This Letter presents a photonics-based millimeter wave and terahertz frequency synthesizer using a monolithic InP photonic integrated circuit composed of a mode-locked laser (MLL) and two pulse interleaver stages to multiply the repetition rate frequency.
Journal ArticleDOI
1.8-THz-wide optical frequency comb emitted from monolithic passively mode-locked semiconductor quantum-well laser.
TL;DR: An optical frequency comb with 14 nm spectral bandwidth at a -3 dB level that is generated using a passively mode-locked quantum-well laser in photonic integrated circuits fabricated through an InP generic photonic integration technology platform is reported on.
Journal ArticleDOI
Absorber Length Optimization of On-Chip Colliding Pulse Mode-Locked Semiconductor Laser
TL;DR: In this article, the authors present theoretical and experimental results regarding the saturable absorber length optimization for the generation of stable mode-locked regimes of a novel on-chip colliding pulse modelocked semiconductor laser structure.
References
More filters
Journal ArticleDOI
Optical multi-mode interference devices based on self-imaging: principles and applications
LB Soldano,E.C.M. Pennings +1 more
TL;DR: The underlying self-imaging principle in multimode waveguides is described using a guided mode propagation analysis and it is shown that multimode interference couplers offer superior performance, excellent tolerance to polarization and wavelength variations, and relaxed fabrication requirements when compared to alternatives such as directional coupling.
Journal ArticleDOI
Wireless sub-THz communication system with high data rate
S. Koenig,D. Lopez-Diaz,J. Antes,J. Antes,F. Boes,F. Boes,R. Henneberger,Arnulf Leuther,Axel Tessmann,Rene Schmogrow,Rene Schmogrow,David Hillerkuss,David Hillerkuss,Robert Palmer,Thomas Zwick,Christian Koos,Wolfgang Freude,Oliver Ambacher,Juerg Leuthold,Juerg Leuthold,Ingmar Kallfass,Ingmar Kallfass +21 more
TL;DR: A wireless sub-THz communication system near 237.5 GHz with one to three carriers and up to 100 Gbit/s with state-of-the-art active I/Q-MMIC at the Rx is demonstrated.
Characterization of the noise continuously operating mode-locked lasers
TL;DR: In this paper, an experimental and theoretical investigation of the fluctuations of the pulses from continuous-wave mode-locked lasers is presented, and it is shown that these fluctuations can be detected and quantitatively characterized from measurements of the power spectrum of the light intensity.
Journal ArticleDOI
Characterization of the noise in continuously operating mode-locked lasers
TL;DR: In this article, an experimental and theoretical investigation of the fluctuations of the pulses from continuous-wave mode-locked lasers is presented, and it is shown that these fluctuations can be detected and quantitatively characterized from measurements of the power spectrum of the light intensity.
Journal ArticleDOI
Terahertz wireless communications based on photonics technologies
Tadao Nagatsuma,Shogo Horiguchi,Yusuke Minamikata,Yasuyuki Yoshimizu,Shintaro Hisatake,Shigeru Kuwano,Naoto Yoshimoto,Jun Terada,Hiroyuki Takahashi +8 more
TL;DR: Recent progress in terahertz wireless communications using telecom-based photonics technologies towards 100 Gbit/s is reviewed.