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5 results on '"semiconductor mode-locked laser"'

1. Parity-Time Symmetric Optoelectronic Oscillator Based on an Integrated Mode-Locked Laser

Author

Zou, Fang, Zou, Lei, Lai, Yun, Xie, Changjian, Luo, Jie, Milosevic, Dusan, Yan, Lianshan, Pan, Wei, Liu, Yu, Cao, Zizheng, Koonen, Ton, Zou, Xihua, Zou, Fang, Zou, Lei, Lai, Yun, Xie, Changjian, Luo, Jie, Milosevic, Dusan, Yan, Lianshan, Pan, Wei, Liu, Yu, Cao, Zizheng, Koonen, Ton, and Zou, Xihua

Abstract

Originating from the non-Hermitian quantum mechanics, the parity-time (PT) symmetry has been extensively explored to ensure a stable single-mode oscillation for optoelectronic oscillators (OEOs), while avoiding additional extremely challenging ultrahigh-Q filters. Enabled by the emerging photonics integrated circuit (PIC) technology, we report the tunable PT-symmetric OEO by using an integrated mode-locked laser, as a striking advance to reduce the footprint of OEOs. Stable single-mode oscillating signal at 24.5 GHz has been generated with a phase noise of-108 dBc/Hz @ 10 kHz frequency offset. In particular, a tunable frequency range from 24 to 25 GHz is achieved by manipulating the injection currents into the well-designed on-chip linear laser cavity. This work exhibits a breakthrough in conceptual integrated microwave photonic devices, and also accelerates the real-world applications of fundamental physical theory of PT symmetry to information industry.

Published
2021

2. Parity-Time Symmetric Optoelectronic Oscillator Based on an Integrated Mode-Locked Laser

Author

Ton Koonen, Changjian Xie, Yun Lai, Jie Luo, Lianshan Yan, Lei Zou, Yu Liu, Zizheng Cao, Fang Zou, Xihua Zou, Dusan Milosevic, Wei Pan, Eindhoven Hendrik Casimir institute, RF, Integrated Circuits, Electro-Optical Communication, and Center for Wireless Technology Eindhoven

Subjects
Physics, business.industry, Photonic integrated circuit, Physics::Optics, 02 engineering and technology, Integrated circuit, parity-time symmetry, Condensed Matter Physics, Laser, Signal, Atomic and Molecular Physics, and Optics, law.invention, Photonic integrated circuits, 020210 optoelectronics & photonics, semiconductor mode-locked laser, law, Optical cavity, coupled optoelectronic oscillations, Phase noise, 0202 electrical engineering, electronic engineering, information engineering, Frequency offset, Optoelectronics, Electrical and Electronic Engineering, Photonics, business
Abstract

Originating from the non-Hermitian quantum mechanics, the parity-time (PT) symmetry has been extensively explored to ensure a stable single-mode oscillation for optoelectronic oscillators (OEOs), while avoiding additional extremely challenging ultrahigh-Q filters. Enabled by the emerging photonics integrated circuit (PIC) technology, we report the tunable PT-symmetric OEO by using an integrated mode-locked laser, as a striking advance to reduce the footprint of OEOs. Stable single-mode oscillating signal at 24.5 GHz has been generated with a phase noise of-108 dBc/Hz @ 10 kHz frequency offset. In particular, a tunable frequency range from 24 to 25 GHz is achieved by manipulating the injection currents into the well-designed on-chip linear laser cavity. This work exhibits a breakthrough in conceptual integrated microwave photonic devices, and also accelerates the real-world applications of fundamental physical theory of PT symmetry to information industry.

Published
2021

3. Semiconductor mode-locked lasers integrated with electroabsorption optical modulators.

Author

Sato, Kenji

Subjects
*MODE-locked lasers, *BANDWIDTHS, *ELECTRONIC modulators, *PULSE circuits, *SEMICONDUCTORS, *DATA transmission systems, *BROADBAND communication systems
Abstract

The basic configuration and characteristics of an actively mode-locked semiconductor laser integrated with an electroabsorption optical modulator are described theoretically and experimentally. With regard to 1.55-µm 40-GHz semiconductor mode-locked lasers integrated with distributed Bragg reflectors with different bandwidths, the results of numerical analysis and experimental evaluations are described. By means of increasing the bandwidth of the distributed Bragg reflector, the optical spectrum is expanded and short pulses with a pulse width of 1.6 ps after linear compression by anomalous dispersion are generated. © 2005 Wiley Periodicals, Inc. Electron Comm Jpn Pt 2, 88(9): 1–9, 2005; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/ecjb.20193 [ABSTRACT FROM AUTHOR]

Published
2005
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4. Pulse characterization at 1.5 μm using time-resolved optical gating based on dispersive propagation.

Author

Koumans, R.G.M.P. and Yariv, A.

Abstract

This letter demonstrates the use of time-resolved optical-gating based on dispersive propagation to characterize a semiconductor mode-locked laser emitting picosecond pulses at a wavelength of 1.5 μm. DP-TROG is a new noninterferometric method for characterizing ultra-short optical pulses in amplitude and phase without the need for a short optical gating pulse. We describe and give recommendations for the reconstruction of the pulse properties from the set of measured autocorrelation traces and the intensity spectrum [ABSTRACT FROM PUBLISHER]

Published
2000
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5. Silicon photonics WDM transmitter with single section semiconductor mode-locked laser

Author

Bin Shen, Alvaro Moscoso-Mártir, Elmira Islamova, S. Sharif Azadeh, Sebastian Romero-García, Jeremy Witzens, Nicolas Chimot, Francois Lelarge, Siddharth Joshi, Juliana Müller, Johannes Hauck, and Florian Merget

Subjects
Materials science, Silicon photonics, silicon photonics, business.industry, Hybrid silicon laser, Transmitter, datacenter interconnects, Mode (statistics), wavelength division multiplexed transceiver, resonant ring modulator, Single section, Laser, Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials, law.invention, Semiconductor, semiconductor mode-locked laser, law, Wavelength-division multiplexing, Optoelectronics, datacom, business, Instrumentation
Abstract

Advanced Optical Technologies 4(2), 119-145 (2015). doi:10.1515/aot-2015-0003, Published by De Gruyter, Berlin

Published
2015
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