光学技研 List of Products and Services

Our company focuses on high-precision polishing technology for crystals as our core technology and is engaged in the development of research prototypes. We respond to customer requests through an integrated in-house process that includes cutting, film formation, and modularization. In addition to processing based on specified precision, we also accept design and proposal-type prototypes based on customer-requested characteristics, so please feel free to consult with us. 【High-Precision Polishing Processing】 ■ High parallelism flat polishing ■ High flatness flat polishing ■ Ultra-thin sheet polishing ■ Optical waveguide end face polishing ■ Laser rod polishing, etc. *For more details, please refer to our catalog or feel free to contact us.

• Optical Components
• Other contract manufacturing
• Other contract services

We propose and manufacture custom wavelength plates with optimal optical properties and processing precision for your specific applications. The "dual-wavelength plate" is a wavelength plate that can accommodate any two wavelengths, phase differences, and aperture dimensions. Please feel free to consult us if you have any requests. 【Features】 ■ Compatible with any two wavelengths, phase differences, and aperture dimensions *For more details, please refer to the catalog or feel free to contact us.

• Optical Components
• Other electronic components and modules

We propose and manufacture custom wavelength plates with optimal optical characteristics and processing precision for various applications. "Quartz wavelength plates" are wavelength plates that can be selected in various types according to the purpose. They can accommodate any wavelength, phase difference, and diameter dimensions. Please feel free to consult us if you have any requests. 【Features】 ■ Various types can be selected according to the purpose ■ Accommodates any wavelength, phase difference, and diameter dimensions *For more details, please refer to the catalog or feel free to contact us.

• Optical Components
• Other electronic components and modules

The "DUV Grant Thomson Prism" is a Grant Thomson-type polarizer that achieves high transmission characteristics and a high extinction ratio across the deep ultraviolet to infrared range. It can accommodate an ultra-broadband range of 180 to 2,200 nm. It can also be applied as a polarizing beam splitter. Please feel free to consult us if you have any requests. 【Features】 ■ Accommodates an ultra-broadband range of 180 to 2,200 nm ■ High transmission characteristics at 193 nm (T ≧ 80%) ■ High extinction ratio of 5:1,000,000 (@633 nm) * For more details, please refer to the catalog or feel free to contact us.

• Optical Components
• Other electronic components and modules

The "ultraviolet wideband wavelength" is a wavelength plate that can handle wavelengths from 160nm onwards. It achieves a high transmission rate in the ultraviolet range. Additionally, it features low wavelength dependence. Our company can accommodate any wavelength range, phase difference, and aperture size. Please feel free to consult us if you have any requests. 【Features】 ■ Supports from 160nm onwards ■ High transmission rate in the ultraviolet range ■ Low wavelength dependence ■ Accommodates any wavelength range, phase difference, and aperture size *For more details, please refer to the catalog or feel free to contact us.

• Optical Components
• Other electronic components and modules

The "Polarization Dependent Optical Isolator (Single Stage)" is an optical isolator that demonstrates its power in improving the accuracy of optical measurement systems. It features a large diameter that is not available from other companies. Additionally, we offer two standard sizes with diameters of Φ3.3 and Φ5. There is also a two-stage type with approximately double the isolation. 【Features】 ■ Large diameter ■ Compact size ■ Two diameter options: Φ3.3 and Φ5 ■ Two-stage type also available *For more details, please refer to the catalog or feel free to contact us.

• Optical Components

The "polarization-independent optical isolator" is a highly durable optical isolator designed for industrial lasers. Due to its high versatility as a polarization-independent type, it can achieve a high transmission rate regardless of the polarization state of the incident light. It is an essential device for suppressing back reflections and stabilizing laser light sources. 【Features】 ■ High versatility due to polarization independence ■ High isolation ■ Low insertion loss ■ Low PDL ■ High laser durability *For more details, please refer to the catalog or feel free to contact us.

• Optical Components

Optical Technology Co., Ltd. is a company engaged in the design, development, and manufacturing of optical products, as well as prototype processing of optical crystals and glass components. In "crystal processing," we flexibly respond to various customer requests with our extensive knowledge of crystals and high-precision processing technology. We also accept processing of commissioned items (supplied materials) and the manufacturing of custom products. Please feel free to consult with us. 【Business Activities】 ■ Design, development, and manufacturing of optical products for optical communication ■ Processing of solid laser crystals and EO crystals ■ Prototype processing of other crystals and glass substrates *For more details, please refer to our catalog or feel free to contact us.

• Optical Components
• Other contract manufacturing
• Other contract services

If you specify the element dimensions, phase integration angle, or conversion wavelength, we will manufacture the element according to your requirements.

• Other optical parts

Please feel free to contact us for inquiries about grinding processing, as well as requests for optical design and component development.

• Processing Contract

We respond to customer demands through an integrated in-house process that includes cutting, film formation, and even modularization, while ensuring quality and precision through high-precision evaluation equipment.

• Processing Contract

You can confidently place your order due to our thorough confidentiality measures regarding important secrets in processing requests for research and development products.

• Processing Contract

Large caliber, compact size

• Other optical parts

High quality and high reliability through in-house design and manufacturing.

• Other optical parts

Compatible with all light sources such as lasers, LEDs, and lamps.

• Other optical parts

Ultra-broadband support from 180 nm to 2200 nm.

• prism

Corresponding to any wavelength, phase difference, and aperture size.

• Other optical parts

Corresponding to any wavelength, phase difference, and aperture size.

• Other optical parts

It is used when there are multiple wavelengths on the same optical path, such as in a high harmonic generation system, and only a specific wavelength among them needs to be given a phase difference.

• Other optical parts

Corresponding to any wavelength band, phase difference, and aperture size.

• Other optical parts

High transmittance in the ultraviolet range.

• Other optical parts

We will design wave plates tailored to your specifications and propose and manufacture wave plates with optimal optical characteristics and processing precision for your applications.

• Other optical parts

Achieving high transmittance characteristics and high extinction ratio from the deep ultraviolet region to the infrared region.

• prism

High transmittance characteristics at 193 nm

• prism

Due to its high versatility and polarization-independent type, a high transmission rate can be achieved regardless of the polarization state of the incident light. It suppresses return light and is a necessary device for stabilizing laser light sources.

• Other optical parts

Crystals have continued to captivate people since ancient times due to their beauty and rarity. Some crystals emit a beautiful sparkle due to their high refractive index. Others have unique characteristics, such as polarizing light and allowing light that cannot pass through glass to do so. At our Optical Technology Research Institute, we elevate these unique traits of crystals into functions that control light, continuously pursuing the possibilities of optical crystals and striving to advance into new realms.

• prism
• Laser Components
• Other optical parts

At Optical Research Institute, we are developing a polarization-independent optical isolator applied to industrial lasers. It is a high-durability optical isolator designed for industrial lasers, represented by fiber lasers. Due to its polarization-independent type, it can achieve a high transmission rate regardless of the polarization state of the incident light. It is an essential device for suppressing back reflections and stabilizing laser light sources.

• others

The Grant Thomson prism is the most common polarizer. It has a wide viewing angle, and the emitted light travels in a straight line without any displacement of the optical path. In particular, the DUV-compatible type developed this time has high transmittance and high extinction ratio at a wavelength of 193 nm, as well as broadband characteristics up to the 2 μm range. The DUV-compatible Grant Thomson prism is currently under patent application. "Patent Application No. 2006-153913"

• others

The quartz solid etalon has a simple structure with reflective films deposited on both sides of a single synthetic quartz substrate, offering advantages such as being compact and low-cost. However, since the substrate itself acts as the interference medium, changes in temperature and other factors can cause the substrate to expand or alter its refractive index, which may lead to variations in the transmitted wavelength.

• others

It is the most anticipated crystal for the generation of the fourth and fifth harmonics of Nd:YAG lasers. It has high conversion efficiency and damage threshold, and is attracting attention as a component for laser light sources used in processing applications such as fine hole drilling. It is highly hygroscopic, making it impossible to use water during crystal processing. Additionally, humidity management is required both during processing and usage. In actual use, it is encapsulated in a high airtight package cell.

• others

We provide integrated in-house processing from crystal cutting to shaping, polishing, anti-reflective coating, and optical contact, utilizing advanced crystal processing technology represented by high-precision polishing at Optical Research Institute. We also support design and phase difference evaluation, so please feel free to inquire about custom specifications and development products.

• others