THORLABS F260FC-C Fiber Collimator

( Brand: Thorlabs ), ( Manufacturer Part Number: F260FC-C ), ( Type: Collimator Assy ), ( Country Of Origin: United States )

Review THORLABS Fiber Collimator Assy Guaranteed

The **Thorlabs F260FC-C Fiber Collimator** is a high-performance, precision-engineered optical component designed to seamlessly couple light from a single-mode fiber to a free-space beam with minimal divergence and maximum efficiency. Part of Thorlabs renowned FC/PC fiber connector series, this collimator is engineered for applications requiring exceptional beam quality, stability, and reliability in both research and industrial environments. Featuring a **260 m core diameter** single-mode fiber input, the F260FC-C is optimized for compatibility with standard telecommunications-grade fibers, including those used in laser systems, spectroscopy, and fiber-optic sensing. Its **FC/PC (Fiber Connector, Physical Contact)** connector interface ensures a secure, repeatable connection with low insertion loss, reducing signal degradation and alignment challenges during repeated use.

At the heart of this collimator is a **high-precision aspheric lens**, meticulously designed to minimize spherical aberrations and chromatic dispersion, thereby delivering a near-diffraction-limited output beam with a **low M factor** (beam quality parameter). The lens is housed in a robust, anodized aluminum housing, which provides excellent thermal stability and resistance to environmental fluctuations, ensuring consistent performance across a wide operating temperature range. The compact yet sturdy design allows for easy integration into optical benches, fiber launch systems, or custom optical assemblies without sacrificing alignment accuracy. Additionally, the collimator s **front-mounted FC/PC connector** enables straightforward interfacing with fiber pigtails, patch cords, or other fiber-based components, making it an ideal choice for applications where space and flexibility are critical.

The F260FC-C excels in demanding optical setups, including **laser diagnostics, fiber-coupled laser systems, optical communication testing, and precision metrology**, where maintaining beam coherence and minimizing beam walk-off are essential. Its **low back-reflection** design further reduces feedback into the fiber, protecting sensitive laser sources from damage or instability. Thorlabs rigorous quality control ensures that each collimator undergoes stringent testing for optical performance, mechanical durability, and environmental resistance, guaranteeing long-term reliability in both laboratory and field deployments. Whether used in cutting-edge photonics research or high-precision industrial applications, the F260FC-C delivers uncompromising optical performance, making it a trusted component for engineers and scientists seeking superior fiber-to-free-space beam conversion.

### **Thorlabs F260FC-C Fiber Collimator: Pros and Cons**

1. **High Optical Performance** The F260FC-C is designed for low divergence output, making it suitable for precision applications such as laser alignment, beam shaping, and fiber-optic coupling. Its graded-index (GRIN) lens ensures minimal beam distortion.

2. **Compatibility with Standard Fiber Connectors** It features a FC/PC (Fiber Connector, Physical Contact) connector, which is widely used in research and industrial settings, ensuring easy integration with existing fiber optic systems.

3. **Durable Construction** Thorlabs is known for high-quality manufacturing, and this collimator is built to withstand repeated use without significant degradation in performance.

4. **Wide Wavelength Range** The GRIN lens is optimized for visible to near-infrared wavelengths (typically 400 1100 nm), making it versatile for various applications, including telecommunications, spectroscopy, and laser systems.

5. **Compact and Lightweight** The design is compact, making it easy to integrate into space-constrained optical setups without adding significant bulk.

6. **Good Beam Quality** The collimated output maintains a near-Gaussian profile, which is essential for applications requiring precise beam focusing or coupling into other optical components.

7. **Backward Compatibility** The FC/PC connector is a standard, meaning replacement or upgrading components is straightforward.

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1. **Limited Wavelength Range** While it works well for visible and near-IR applications, it may not be ideal for ultraviolet (UV) or far-infrared (IR) wavelengths without additional modifications or filters.

2. **Potential Alignment Sensitivity** Like most fiber collimators, misalignment of the fiber or GRIN lens can degrade performance. Proper mounting and alignment are critical for optimal results.

3. **Cost** Thorlabs products are generally premium-priced, and while the F260FC-C is reasonably priced for its quality, it may still be expensive for budget-conscious applications.

4. **Durability Concerns with Fiber Handling** The FC/PC connector, while robust, can be fragile if mishandled, potentially leading to connector damage over time.

5. **Limited Customization** Unlike some other collimators, this model does not offer adjustable focal lengths or customizable output beam diameters, restricting flexibility for specialized applications.

6. **Potential for Dust or Contamination** The open design of the collimator can be susceptible to dust or debris, which may affect beam quality if not properly sealed or cleaned.

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### **Conclusion**

The **Thorlabs F260FC-C fiber collimator** is an excellent choice for applications requiring high-quality, low-divergence beam output in visible to near-infrared wavelengths. Its reliability, compatibility with standard connectors, and optical performance make it a strong option for research, industrial, and laboratory settings. However, its limitations in wavelength range, sensitivity to alignment, and cost may make it less suitable for applications requiring extreme durability, customization, or operation outside its specified wavelength range.

### **Recommendation**

If your application involves **visible to near-IR laser alignment, fiber coupling, or beam shaping**, the **F260FC-C is highly recommended** due to its precision and compatibility with standard fiber systems. For applications requiring **UV or far-IR wavelengths**, consider alternative collimators or additional optical components. If budget is a concern, evaluate whether a slightly less expensive but equally capable collimator from another manufacturer would suffice.

For most standard optical setups where performance and reliability are prioritized, the **Thorlabs F260FC-C is a safe and effective choice**. Always ensure proper alignment and handling to maximize its lifespan and performance.

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O49 Thorlabs F260FC-C Fiber Collimator Assy. Accessories included only when explicitly listed. Review all photos before buying, what you see is get.

part #: f260fc price

• $99.00

specifications linactuat:

• brand: Thorlabs
• mpn: F260fc-c
• type: Collimator Assy
• country of origin: United States

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