
Fiber Optic Collimators
Custom Pigtailed C-Lens & GRIN Collimators with Minimal Angular Misalignment

Basic Information
Contact
For any technical questions or inquiries, please do not hesitate to contact us.

Sales Department
Tel.: +420 493 765 111
sales@sqs-fiber.cz

At SQS, we design high-precision fiber optic collimators using C-lens and GRIN lens technology. With a beam waist of 150–1000 µm, our collimators ensure minimal insertion loss and precise beam alignment. We offer standard single-channel collimators as well as collimator fiber arrays, customized to meet specific optical system requirements.
Our collimators support single-mode (SM), polarization-maintaining (PM), and multimode (MM) fibers with connector options including FC, SC, LC, and E2000. Active alignment minimizes angular misalignment to less than 2 mrad, ensuring high optical accuracy relative to the mechanical axis of the lens.
Standard lens diameters of 1.0 mm, 1.8 mm, or 2.5 mm ensure compatibility with various optical setups. All lenses feature anti-reflective (AR) coatings to reduce back-reflection and enhance transmission efficiency. Collimators can also be integrated into custom metal housings, manufactured on our CNC machining centers for maximum durability and precision.
Advantages
- Single-channel and multi-channel solutions
- Active lens-to-fiber alignment
- Minimum deflection of the outgoing beam
- Possibility of gluing the collimator into a metal case
- Customizable fiber and connector configurations
- Enhanced durability for harsh environments
Applications
- Laser beam delivery for industrial and medical systems
- Fiber-to-fiber coupling for efficient signal transfer
- Telecommunications in high-speed fiber networks
- Optical sensing systems for precise detection
- Beam expansion in laboratory and research setups
- Imaging systems for advanced optical instrumentation
Technical Specifications
Operating wavelength [nm] | 400 - 1600 |
Insertion loss [dB] * | < 0.5 |
Back reflection [dB] | > 55 |
Lens diameter [mm] ** | 1, 1.8, 2.5 or other dimensions |
Deflection of the outgoing beam [mrad] | < 2 (without case) |
Anti-reflective coatings | according to custom specification, typ. R < 0.5 % |
Fiber type | SM, MM or PM |
Lens type | C lens, GRIN lens, aspherical lens |
Connectors | FC, SC, LC, E2000 and others |
Collimator housing | glass, metal, without housing |
*) Applies to the given wavelength, working distance and when using an anti-reflective surface. **) Other diameters on request.
Collimated beam specifications

Contact
For any technical questions or inquiries, please do not hesitate to contact us.

Sales Department
Tel.: +420 493 765 111
sales@sqs-fiber.cz
