Tag Archives: single-frequency

ML6600 Multiwavelength Distributed Bragg Reflector Laser Platform for Quantum Applications

Modulight ML6600 Distributed Bragg Reflector laser cores are available at various wavelengths – 650 nm, 760 nm, 780 nm, 785 nm, 795 nm, and 935 nm – relevant to quantum and spectroscopy applications. The fully in-house manufactured laser diodes exhibit reliable high-power operation with down to below 500 kHz linewidth. Designed for highest-quality mechanical, optical and acoustical isolation, and integrated with ML6600 platform’s ultra-low-noise current drivers and accurate temperature controllers, these laser cores show top-notch performance. Both free-space output and single-mode polarization maintaining fiber are Continue reading →Modulight ML6600 Distributed Bragg Reflector laser cores are available at various wavelengths - 650 nm, 760 nm, 780 nm, 785 nm, 795 nm, and 935 nm - relevant to quantum and spectroscopy applications. The fully in-house manufactured laser diodes exhibit reliable high-power operation with down to below 500 kHz linewidth. Designed for highest-quality mechanical, optical and acoustical isolation, and integrated with ML6600 platform’s ultra-low-noise current drivers and accurate temperature controllers, these laser cores show top-notch performance. Both free-space output and single-mode polarization maintaining fiber are Continue reading →

Multiwavelength narrow linewidth laser system for Ba+ quantum computing applications

Published in: QUANTUM WEST SPIE 2024 Authors: Kostiantyn Nechay, Luukas Kuusela, Pekko Sipilä, Kalle Palomäki, Petteri Uusimaa  Published in: QUANTUM WEST SPIE 2024 Authors: Kostiantyn Nechay, Luukas Kuusela, Pekko Sipilä, Kalle Palomäki, Petteri Uusimaa Quantum information processing (QIP) approach based on trapped ions is a promising technology that exploits different ion species as individual qubits and qubit gates, while featuring long coherence times, high fidelity of operations, fast readout, and ion-ion gate entanglement. The practical usefulness of trapped-ion quantum computer depends on its further scaling to a large number of qubits. Meanwhile, trapped-ion quantum computer relies on a set of single-frequency lasers, utilizing Continue reading →

Narrow linewidth 650 nm DBR laser diode for quantum applications

Published in: QUANTUM WEST SPIE 2024 Authors: Riina Ulkuniemi, Luukas Kuusela, Mika Mähönen, Timo Aho, Jussi Hämelahti, Andreas Schramm, Soile Talmila, Pekko Sipilä, Petteri Uusimaa  Published in: QUANTUM WEST SPIE 2024 Authors: Riina Ulkuniemi, Luukas Kuusela, Mika Mähönen, Timo Aho, Jussi Hämelahti, Andreas Schramm, Soile Talmila, Pekko Sipilä, Petteri Uusimaa Laser systems are utilized in quantum for various applications. Multiple wavelengths and tailored solutions are required depending on the technology that the laser will be applied to. For instance, lasers can be used for controlling particles and molecules, including excitations of the quantum systems. Key performance requirements for lasers used in these applications include narrow linewidth, frequency stability, and single-frequency Continue reading →

Narrow linewidth VECSELs for Ba+ cooling at 493 nm

Published in: LASE SPIE 2024 Authors: Kostiantyn Nechay, Andreas Schramm, Mika Mähönen, Soile Talmila, Jussi Hämelahti, Pekko Sipilä, Kalle Palomäki, Petteri Uusimaa  Published in: LASE SPIE 2024 Authors: Kostiantyn Nechay, Andreas Schramm, Mika Mähönen, Soile Talmila, Jussi Hämelahti, Pekko Sipilä, Kalle Palomäki, Petteri Uusimaa Quantum information processing based on trapped ion technology is one of the leading platforms, heavily relying on a set of single-frequency lasers in its core operations. Narrow linewidth lasers perform atom photoionization, cooling, state-preparation and read-out. In this work we demonstrate in-house designed and fabricated optically pumped semiconductor laser gain mirror comprised of InGaAs quantum wells and GaAs/AlAs distributed Bragg reflector. We demonstrate Continue reading →

Distributed Bragg Reflector (DBR) Laser Diodes

Introduction to DRB lasers Distributed Bragg Reflector (DBR) laser diodes are a class of single-frequency monolithic semiconductor lasers. Monolithic semiconductor lasers in general are small in size, mechanically robust, and have good power conversion efficiency. They also provide opportunities for hybrid integration with photonic integrated circuits (PICs). This application note provides an overview of DBR lasers, their principles of operation, their modal behavior, and their diverse applications. Principles of DBR Laser Operation A DBR laser is a semiconductor laser with one or several quantum wells Continue reading →

Configurable multiwavelength narrow linewidth laser system for quantum applications

Presented in: SPIE Quantum West 2023 Authors: Kostiantyn Nechay, Luukas Kuusela, Ossi Mäkinen, Riina Ulkuniemi, Pekko Sipilä, Kalle Palomäki, Petteri Uusimaa    Presented in: SPIE Quantum West 2023 Authors: Kostiantyn Nechay, Luukas Kuusela, Ossi Mäkinen, Riina Ulkuniemi, Pekko Sipilä, Kalle Palomäki, Petteri Uusimaa   Single-frequency laser sources serve as a backbone for quantum computing and metrology technologies and applications. Availability of integrated laser systems delivering tailored multiwavelength emission across optical spectrum is a defining factor for further quantum technologies development and commercialization. Modulight demonstrates highly integrated ML6600 laser system for cooling and repumping of 87Rb atoms at D2 line. Such laser system incorporates driving electronics, internal spectroscopy-locked Continue reading →