Shulin Wohlfeil, Jan-Philipp Koester, Heike Christopher, Jörg Fricke, Pietro Della Casa, Hans Wenzel, Andrea Knigge, Günther Tränkle
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引用次数: 0
Abstract
We present the integration of an S-bend waveguide into the cavity of a mode-locked diode laser to tune its repetition frequency for use in terahertz time-domain spectroscopy applications. The mode-locked diode laser, featuring a facet-to-facet 6-mm-long straight ridge waveguide, emits light at a wavelength of around 830 nm and operates at a repetition frequency of 6.3 GHz. By incorporating an S-bend into the cavity, the optical path length can be modified, enabling a variation of up to 12 MHz in the repetition frequency. Furthermore, this approach supports the co-integration of two lasers on a single chip, each with a distinct repetition rate but operating under identical environmental and driving conditions, offering a robust and compact two-laser solution for asynchronous optical sampling.
期刊介绍：
Electronics Letters is an internationally renowned peer-reviewed rapid-communication journal that publishes short original research papers every two weeks. Its broad and interdisciplinary scope covers the latest developments in all electronic engineering related fields including communication, biomedical, optical and device technologies. Electronics Letters also provides further insight into some of the latest developments through special features and interviews.
Scope
As a journal at the forefront of its field, Electronics Letters publishes papers covering all themes of electronic and electrical engineering. The major themes of the journal are listed below.
Antennas and Propagation
Biomedical and Bioinspired Technologies, Signal Processing and Applications
Control Engineering
Electromagnetism: Theory, Materials and Devices
Electronic Circuits and Systems
Image, Video and Vision Processing and Applications
Information, Computing and Communications
Instrumentation and Measurement
Microwave Technology
Optical Communications
Photonics and Opto-Electronics
Power Electronics, Energy and Sustainability
Radar, Sonar and Navigation
Semiconductor Technology
Signal Processing
MIMO
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