キーストンインターナショナル List of Products and Services

HPD has become a subsidiary of Intense Ltd, which is headquartered in Scotland, UK. We will leverage HPD's extensive experience and achievements built up to this point, using Intense's stronger management resources and product management to continue selling the products we have traditionally offered. If you are looking for high-power semiconductor lasers, please consider us. We are confident that we can meet the stringent demands of our users. The main wavelengths are infrared (793-905nm) and visible light (635-690nm) with output up to 150W. *HPD's products are delivered in Japan by Keystone International Co., Ltd. For product information, please also refer to HPD's website.

Alpes Lasers SA is known as the first company in the world to apply unipolar laser technology to spectroscopic applications. Over the past 30 years, it has accumulated further unique manufacturing know-how for unipolar lasers. Alpes Lasers SA is a specialized manufacturer of Unipolar Quantum Cascade Lasers, registered and established as a corporation in Neuchâtel, Switzerland. Quantum cascade lasers can be used in applications that require reliable and powerful mid-IR sources. 【Applications】 ○ Industrial process monitoring → Contamination in semiconductor manufacturing processes, food production processes, brewing processes, combustion diagnostics, etc. ○ Applications in life sciences/medicine → Medical diagnostics, biological contamination, drugs ○ Military → Detection of explosives, detection of chemical/biological agents, secure communications For more details, please contact us.

Aroyo Instrument Company offers a variety of laser drivers in multiple models to meet the diverse needs of its customers. The laser diode drivers from Aroyo Instrument Company include benchtop types for use in laboratories and OEM types for equipment integration, with drive currents available from 100mA to 20A. 【Features】 - All models of Model 4201 incorporate phot couplers in the circuit → This prevents ground circuit looping by isolating the LD from other circuits, enhancing safety. - Equipped with standard modulation input circuits, programmable PD bias, and computer interfaces RS232 and USB → These circuits have unique features not found in competing products. - The drivers include various laser diode protection circuits, interlocks, ESD protection circuits, and current and voltage limiters. For more details, please contact us.

Shanghai Dream Lasers Technology is a manufacturer of precision optical components and optical crystals, consistently producing DPSS lasers using parts manufactured in-house. They offer a wide range of oscillation wavelengths, including Violet (430nm, 435nm), Deep Blue (457nm), Blue (473nm), Green (501nm, 515nm, 523nm, 526nm, 532nm, 543nm, 556nm, 561nm), Yellow (589nm, 593nm), and Red (660nm, 671nm). Of course, precision optical components and various optical crystals are also available for sale at low prices.

Snake Creek Lasers offers ultra-compact green lasers MiniGreen and MicroGreen, small high-power IR laser MiniIR, and the shorter wavelength Mini473. Despite their ultra-compact size, these lasers provide high laser output. They are ideal for integration into equipment but can also be used for laboratory experiments. Additionally, a variety of options are available to facilitate the use of these lasers, including laser integration modules and optical output stabilization modules.

The "MRJ-FL-20K" is a mini desktop high-performance fiber laser marking machine developed using advanced laser technology. It features an integrated design, stable structure, high marking speed, and high repeat positioning accuracy. With a unique industrial design structure, operating platform, and laser light protection cover, it achieves high safety and operability. 【Features】 ■ Compact, lightweight, and one of the smallest tabletop laser marking machines in the world at 20 (30W) ■ The fiber laser provides excellent beam quality and achieves high-precision marking ■ The marking head is equipped with an autofocus function that achieves fast and accurate fixed focus ■ Core components are optimally designed to achieve a high signal-to-noise ratio and strong interference prevention capability *For more details, please refer to the PDF document or feel free to contact us.

The "ICL 2800-6500nm" is a distributed feedback (DFB) interband cascade laser manufactured by Nanoplus, operating at any wavelength between 2800nm and 6500nm. Most hydrocarbons have a strong light absorption characteristic between 3000nm and 6000nm, making this product suitable for providing DFB lasers in the wavelength range appropriate for gas sensing. 【Features】 ■ Single mode ■ Continuous wave ■ Room temperature ■ Low power consumption ■ Wavelength tunable ■ Custom wavelength * You can download the English version of the catalog. * For more details, please refer to the PDF document or feel free to contact us.

This product is a compact tabletop marking machine with an integrated design, stable structure, high marking speed, and high repeat positioning accuracy. It features a unique industrial design structure and operating platform, achieving high safety and operability. The core components are optimally designed to achieve a high signal-to-noise ratio and strong interference prevention capability. 【Features】 ■ Fiber Laser: Achieves high precision marking with excellent beam quality ■ Marking Head: Auto-focus function that achieves high-speed and accurate fixed focus ■ Core Components: Optimally designed to achieve a high signal-to-noise ratio and strong interference prevention capability ■ Unique industrial design structure and operating platform, achieving high safety and operability *For more details, please refer to the PDF document or feel free to contact us.

At Keystone International, our staff, equipped with specialized skills and marketing capabilities, provides equipment from around the world, including lasers, to everyone in Japan. This catalog features a variety of products, including "laser diodes," "laser oscillators," and "infrared detection elements." Please feel free to download and take a look. 【Featured Products (partial)】 ■ Laser Diodes ■ Laser Oscillators ■ Infrared Detection Elements ■ Image Processing Systems ■ Precision Instruments ■ Peripheral Equipment *For more details, please refer to the PDF document or feel free to contact us.

Nanoplus's "DFB Laser" detects multiple trace gases in various environments. For example, it ranges from detecting water vapor in gas pipelines in the desert of Nevada, USA, to checking the oxygen levels in the lungs of premature infants. It is manufactured based on a unique lateral coupling, allowing for the production of LDs in the wavelength range of 0.76 to 14.0 μm. Additionally, it is independent of the material system in manufacturing, providing excellent optical characteristics with single-mode radiation. 【Features】 ■ CW ■ Room temperature operation ■ Tunable ■ Customizable with ±0.1 nm accuracy ■ Over 20 years of proven performance ■ Implemented in over 30,000 facilities worldwide *For more details, please refer to the PDF document or feel free to contact us.

We would like to introduce a case study of an independent administrative agency that has implemented nanoplus's "DFB Laser." The customer was considering using it for a "methane gas (CH4) sensor," with an output of "around 10 to 50 mW," and wanted to achieve a minimum spot size at about 10 meters through collimation. In response, nanoplus proposed specifications that included specifying the wavelength at 3345 nm, adding a TEC and NTC to a TO66 housing as an option, and applying AR coating (anti-reflective coating). As a result, in addition to the proposed specifications, they also incorporated a heat sink and collimation lens. 【Proposal Details】 ■ Wavelength: Specified at 3345 nm (selected in 0.1 nm steps) ■ Output: 15 mW ■ Optionally, a TEC and NTC added to a TO66 housing with AR coating ■ Frequency variable: (normal) 10 kHz, capable of several tens of kHz ■ Divergence angle Slow Axis: 35–50° / Fast Axis: 55–70° (FWHM) *For more details, please refer to the PDF document or feel free to contact us.

We handle the "405 to 1550nm Single Mode Laser Diode" from Wavespectrum Inc. (China). The company's products meet military-grade manufacturing and design standards. They have received high praise worldwide, including in Germany, Austria, the United States, Japan, and South Korea. Additionally, they have a world-class research and development team and production facilities, and currently offer a lineup that includes laser diodes, laser drivers, optical components, and peripheral devices. 【Specifications】 ■ Wavelength: 405 to 1550nm ■ Single Mode (SM) ■ With PD ■ Package: TO-5, TO-18, TO-38 * You can download the English version of the catalog. * For more details, please refer to the PDF materials or feel free to contact us.

We handle the "395-1920nm Multi-Mode Laser Diode" from Wavespectrum Inc. (China). The company's products meet military-grade manufacturing and design standards. They have received high praise worldwide, including in Germany, Austria, the United States, Japan, and South Korea. They can be utilized in fields such as space science, optical communication technology, laser displays, and material processing. 【Specifications】 ■ Wavelength: 405-1550nm ■ Output: 300mW-15mW ■ Single Mode (SM) ■ With PD ■ FAC Lens (optional) ■ Package: TO-5, TO-18, TO-38, C-mount, E-mount, H-mount * You can download the English version of the catalog. * For more details, please refer to the PDF materials or feel free to contact us.

We handle the "14-Pin Butterfly Single Mode Pigtailed LD Module" from Wavespectrum (China). The company's products meet military-grade manufacturing and design standards. They also have a world-class research and development team and production facilities. These products can be utilized in laser displays, medical lasers, life sciences, and optical transmitters for analog signals. 【Features】 ■ Wavelength: 405–1550nm ■ Single Mode (SM) ■ Fiber Coupled ■ Butterfly Package ■ With TEC ■ High Stability ■ Long Lifespan *You can download the English version of the catalog. *For more details, please refer to the PDF document or feel free to contact us.

We handle the "14-Pin Butterfly Multimode Pigtailed LD Module" from Wavespectrum Co., Ltd. (China). It comes in a butterfly package with a TEC, offering high stability and long lifespan. The company's products meet military-grade manufacturing and design standards and have received high praise worldwide, including in Germany, Austria, the United States, Japan, and South Korea. 【Specifications (partial)】 ■ Wavelength: 405–1064nm ■ Output: 200mW–1W ■ Single Mode (SM) ■ Fiber Coupled ■ Butterfly Package ■ With TEC * You can download the English version of the catalog. * For more details, please refer to the PDF materials or feel free to contact us.

The "Triplex - RGB Fiber Coupled White Laser Source" combines three colors of lasers at 635nm, 520nm, and 450nm into a single laser to achieve a perfect laser. You can choose from three types of fibers: SMF, MMF, and PMF (polarization maintaining). The fiber cores are available in sizes such as 3μm, 9μm, 50μm, and 105μm, with a maximum output of 200mW. By controlling the appropriate ratio of the RGB lasers, a perfect white laser can be achieved, and by adjusting the ratios, various colors of lasers can be obtained. 【Features】 ■ Various combinations of RGB wavelengths are available ■ The Triplex source includes a laser module, LD driver, and TE cooling system ■ The laser source can operate on 90V to 240VAC ■ Each wavelength can be controlled independently ■ TTL and analog modulation are optional * You can download the English version of the catalog. * For more details, please refer to the PDF document or feel free to contact us.

We handle the "630 to 1550nm EEL (Edge Emitting) Semiconductor Laser" from Union Optronics Corp. The company was established in 1996 as Taiwan's first industrial LD manufacturer and is fully equipped with the necessary facilities for LD production, including epitaxial wafers, chips, packaging, and testing equipment. All products are manufactured in-house by a well-equipped facility and an experienced engineering and technical team. The products are certified with ISO and TSCA, and comply with RoHS and REACH. We can offer competitive pricing. 【Specifications】 ■ Wavelength: 630 to 1550nm ■ Output: 5 to 1000mW ■ Package Types: TO-33, TO-56, TO-9, 3-pin *For more details, please refer to the related links or feel free to contact us.

Introducing the SMD (Surface Mount Device) type semiconductor laser. SMD refers to components designed for surface mounting, which is one method of mounting electronic components onto printed circuit boards. Unlike pin package shapes, the terminals are directly mounted onto the substrate, making it compact and space-efficient, allowing for a greater number of components per unit area. Union Optronics Corp offers two types of SMD (650nm, 800nm). 【Features】 ■ Directly mounted terminals on the substrate ■ Compact and space-efficient ■ Allows for a greater number of components per unit area ■ Available in two types (650nm, 800nm) *For more details, please refer to the related links or feel free to contact us.

Union Optronics Corp's "CoS (Chip on Submount)" is a highly reliable product suitable for embedded applications (OEM applications) with low operating current. It is compatible with applications such as laser pointers, barcode scanners, laser modules, and surveying/engineering equipment. Please feel free to contact us if you have any inquiries. 【Specifications】 ■ Wavelength: 650nm, 808nm ■ Output: 5mW (CW), 200mW (CW) ■ Low operating current ■ Positive terminal side mounting package *For more details, please refer to the related links or feel free to contact us.

Meerstetter Engineering's laser diode driver (hereafter referred to as LDD) has received tremendous support from engineers and technicians worldwide due to its precise and stable output current and excellent temperature stability. Furthermore, its highly versatile communication interface and free software enable rapid implementation. Thus, our LDD is ideal for high-tech applications such as medicine, spectroscopy, quantum applications, and communication fibers. Our LD driver is globally recognized for its accurate and fast PID control. This product functions as a laser driver for single lasers and LD arrays; however, our LD driver is not composed of laser driver ICs. These are properly designed constant current sources equipped with low noise output, integrated safety feature options (e.g., LD protection functions), and interfaces. Our wide range of laser drivers can be used across a broad spectrum of applications, from low current to high output. The multi-purpose communication interface allows for easy and rapid integration into laser systems.

Alpes Lasers has improved its old product, the room-temperature pulsed broad-gain laser for EC, and has started handling the new mid-infrared light source "GLIDER." GLIDER offers a wide range of adjustments and is a monolithic all-in-one light source based on an external cavity design that does not require assembly or external drivers. The output is a single light beam, and its wavelength can be selected in a range of up to approximately 2200 cm⁻¹. Alpes Lasers SA is known as the first company in the world to apply unipolar laser technology to spectroscopic applications. It was also the first company to commercialize QCL (Quantum Cascade Laser) for various fields such as science, industry, and medicine. Additionally, it has been involved in the development of QCL for defense applications for the U.S. Air Force.

The Triplex (RGB) Fiber Coupled White Laser combines red (635nm), green (520nm), and blue (445nm) lasers into a single fiber to achieve perfect white laser. The fiber types include 3um SMF, 9um fiber, and 105um MMF, among others. The output power range is 10 to 200mW. In addition to the above wavelengths, there are many other options available, and demo units are also available, so please feel free to contact us.

The main products of nanoplus are DFB lasers and FP lasers, but in recent years they have also focused on the production of SLDs, which are specially designed and characterized to meet customer requirements. For over 20 years, nanoplus has been manufacturing DFB and FP lasers with excellent performance. This technology is also used in the SLDs they offer in the wavelength range of 760 to 2900 nm.