Tag Archives: DFB

Narrow linewidth 650 nm DBR laser diode for quantum applications

January 31, 2024 by Modulight Content
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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 →

High brightness long lifetime 650nm single-mode laser diodes and arrays for display, printing, and quantum applications

January 30, 2024 by Modulight Content
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Published in: LASE SPIE 2024 Authors: Riina Ulkuniemi, Andreas Schramm, Ville Vilokkinen, Jari Nikkinen, Petteri Uusimaa  Published in: LASE SPIE 2024 Authors: Riina Ulkuniemi, Andreas Schramm, Ville Vilokkinen, Jari Nikkinen, Petteri Uusimaa Individually addressable laser diode arrays (IAB) have been first demonstrated in near-infrared wavelengths, 8xx nm and 9xx nm, being mostly utilized in the digital printing industry. When moving towards visible wavelengths, other applications emerge. Examples of these are various display applications, including AR/VR products and head-up-displays. In addition, novel applications for narrow linewidth lasers have emerged in the field of quantum computing. In this paper, we present our latest Continue reading →

Distributed Bragg Reflector (DBR) Laser Diodes

January 22, 2024 by Modulight Content
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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

March 8, 2023 by Modulight Content
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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 →

Optimization and fabrication of 780 nm DFB lasers for quantum systems

March 8, 2023 by Modulight Content
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Presented in: SPIE Quantum West 2023 Authors: Riina Ulkuniemi, Luukas Kuusela, Timo Aho, Petteri Uusimaa    Presented in: SPIE Quantum West 2023 Authors: Riina Ulkuniemi, Luukas Kuusela, Timo Aho, Petteri Uusimaa   Laser diode solutions for quantum systems have highly variable requirements, depending on the technology and purpose of the laser used in the application – for instance, quantum control of particles or molecules and excitation of the quantum systems. Requirements of the laser systems used in the mentioned applications are highly demanding, such as single-mode operation, frequency stability over operation lifetime and narrow spectral linewidth. Narrow spectral linewidth can be achieved with Continue reading →

Modulight announces two analog fiber pigtailed laser diodes for CATV

May 18, 2004 by Anca Guina
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Tampere, May 18th, 2004 – Modulight, Inc. (Tampere, Finland) announced today two new laser products for Cable Television (CATV) and other applications requiring analog transmission of signals in optical fiber. ML-COAX-1310-FP-AL-3 is a coaxial fiber pigtail module with 1310 nm MQW Fabry-Pérot (FP) diode laser based on a proprietary MOCVD and MBE grown epitaxial structure. The laser operates with 3 mW out-of-fiber optical power with 40 mA typical forward current. The device is available with and without isolator. With isolator minimum optical isolation is better Continue reading →

Modulight launches uncooled 1310 nm DFB laser

October 31, 2003 by Seppo Orsila
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Tampere, October 31st, 2003 – Modulight, Inc. (Tampere, Finland) has today launched the first in series of uncooled DFB laser products that company has developed to address customer requests. The product is designed for SONET OC-3 to OC-48, SDH STM1 to STM-16, Gigabit Ethernet and Fiber Channel applications that require up to 2.5Gb/s transmission speed. The product has extremely stable performance over temperature range of 0 to 85 deg Centigrade and features a typical Side Mode Suppression Ratio (SMSR) of 43dB. The product has a Continue reading →