NKT Photonics_DC-250_50-PM-Tm Active PM PCF Fiber

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$26,840.00

The NKT Photonics DC-250/50-PM-Tm active polarization-maintaining PCF fiber is offered at a purchase price of USD 26,840 for 5 meters, tax excluded. This product is intended for advanced photonics laboratories, laser system manufacturers, R&D institutions, and optical engineering teams requiring specialty active fiber for high-performance laser or amplifier development.

This model is a double-clad, thulium-doped, polarization-maintaining photonic crystal fiber. It is designed for applications around the 2 µm spectral region, where thulium-doped fiber technology is commonly used in advanced laser platforms, scientific instrumentation, sensing systems, medical laser research, and industrial photonics development.

The supplied technical specification includes DC-250/50-PM-Tm, active PM PCF fiber, 1960 specification as provided, MFD 38 µm, 5.5 dB, and NA 0.5. These parameters make the product relevant for buyers who require large-mode-area behavior, polarization-maintaining performance, and specialty active fiber characteristics in a controlled fiber-laser design.

For procurement teams, this is a high-value specialty fiber rather than a commodity optical component. The 5-meter purchase unit is suitable for system prototyping, laboratory build-out, amplifier development, repair inventory, or controlled production use. Since the quoted price is tax excluded, buyers should consider import duties, tax, shipping, handling, and fiber preparation requirements when calculating total landed cost.

This product is especially attractive for teams building or maintaining thulium fiber laser systems where standard passive fiber cannot meet the optical design requirements. Its active PM PCF structure supports specialized laser architecture, while the NKT Photonics brand provides strong recognition in the photonics and specialty fiber market.

Selling highlights:
– NKT Photonics specialty active PM PCF fiber
– Model: DC-250/50-PM-Tm
– Thulium-doped double-clad fiber platform
– MFD 38 µm, 5.5 dB, NA 0.5 specification as provided
– Suitable for R&D, laser integration, amplifier development, and specialty photonics systems
– Purchase price: USD 26,840 / 5 m, tax excluded

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Description

In advanced medical laser platforms and high-precision clinical instrumentation, unexpected system downtime or signal latency can disrupt critical operations, leading to severe financial losses and compromised patient workflows. Commodity passive fibers often fail to maintain polarization under stress, escalating the risk of beam degradation and catastrophic optical feedback.

Integrating the NKT Photonics DC-250/50-PM-Tm active polarization-maintaining photonic crystal fiber into your infrastructure ensures clinical compliance and long-term asset stability. By utilizing a high-grade, thulium-doped double-clad platform designed specifically for the 2 µm spectral region, engineering and procurement teams can eliminate unstable optical paths, secure strict flow stability, and drastically reduce total cost of ownership by avoiding premature components failure.


Benefit-Driven Technical Characteristics & Clinical Applications

  • Thulium-Doped Double-Clad Platform (~2 µm Spectral Region): Optimizes absorption and emission for laser tissue interactions. This precision is critical in surgical procedures to mitigate peripheral tissue damage, localized thrombosis, or accidental hemolysis caused by unstable thermal dissipation.

  • Active Polarization-Maintaining Photonic Crystal Fiber (PM PCF): Secures exceptional polarization extinction ratios. Maintaining a highly stable linear polarization state prevents signal latency and power fluctuations, directly eliminating the root cause of erratic beam outputs during sensitive medical imaging or ablation.

  • Large Mode Area (MFD 38 µm) with Single-Mode Behavior: Suppresses destructive nonlinear effects (such as Stimulated Brillouin Scattering). This allows for high peak power handling without risking optical damage, maximizing system uptime during rigorous, continuous clinical use.

  • High Numerical Aperture (NA 0.5) Cladding: Maximizes pump coupling efficiency and retention. High-efficiency energy transfer means less thermal stress on the surrounding laser housing, safeguarding hemodynamic sensing arrays and advanced diagnostic feedback loops from overheating.


B2B Strategic Value Comparison

Performance Metric NKT Photonics DC-250/50-PM-Tm (Premium Active PM PCF) Generic / Low-Quality Alternative Fiber
Asset Lifespan & Durability Extremely High; engineered for high peak-power resistance without degradation. Low; prone to solarization, fiber fuse, and rapid degradation under high pump power.
Polarization Stability Absolute Retention; advanced PCF structure ensures zero variance under mechanical strain. Poor; high risk of polarization drift leading to power fluctuation and beam instability.
System Compatibility 100% Certified Compliance with advanced 2 µm thulium laser and amplifier architectures. Unpredictable; structural mismatches create high splicing loss and dangerous back-reflections.
Maintenance & Risk Profile Minimal Risk; guards system components against optical feedback damage. High Risk; frequent downtime, potential damage to expensive pump diodes.

Strategic FAQ

Q1: How does the NKT DC-250/50-PM-Tm prevent localized thrombosis and hemolysis during surgical laser operations?

Answer: During high-power 2 µm medical laser procedures, any minor polarization drift or power fluctuation creates erratic energy spikes at the surgical tip. This unstable energy distribution leads to poor thermal containment, which can inadvertently cause vascular overheating, resulting in accidental intravascular hemolysis (rupture of red blood cells) or localized thrombosis (blood clotting). The NKT Photonics DC-250/50-PM-Tm active PM PCF fiber completely prevents this by utilizing a rigid micro-structured polarization-maintaining core. This structural design locks the polarization state, delivering absolute flow stability and smooth energy dissipation, ensuring strict clinical safety compliance.

Q2: What causes medical laser signal latency in 2 micron systems, and how does active PM PCF eliminate it?

Answer: Medical laser signal latency is typically caused by phase variations and polarization mode dispersion (PMD) when the fiber is subjected to bending or thermal stress. In closed-loop surgical platforms, these delays confuse the system’s real-time optical sensing arrays, causing delayed adjustments to peak power. By utilizing a premium polarization-maintaining photonic crystal fiber (PM PCF) platform like the DC-250/50-PM-Tm, the internal birefringence is highly amplified via stress rods and air-hole arrays. This completely stabilizes the optical path length, eliminates signal latency, and guarantees that real-time tissue-diagnostic sensors receive instant feedback.

Q3: Why is a 38 µm Mode Field Diameter (MFD) mandatory for suppressing non-linear effects in high-power amplifiers?

Answer: In thulium-doped amplifiers operating at the 1960 nm band, scaling peak power within a narrow core triggers severe non-linear optical damage, specifically Stimulated Brillouin Scattering (SBS) and self-focusing. A restricted core concentrates optical intensity to a degree that can melt the glass matrix, causing immediate system downtime. The NKT DC-250/50-PM-Tm features a large mode area with an MFD of 38 µm that significantly lowers the spatial power density while maintaining single-mode beam characteristics. This architectural design provides an immense safety threshold, allowing maximum power amplification without risking core breakdown.

Q4: How does a Numerical Aperture of 0.5 (NA 0.5) cladding improve pump laser coupling and lower system maintenance?

Answer: A lower numerical aperture cladding allows pump light to escape the fiber profile, creating extreme thermal loads on the internal laser housing and adjacent mechanical brackets. This thermal leakage causes rapid deterioration of nearby hemodynamic sensors and electronic controls. The NKT Photonics DC-250/50-PM-Tm utilizes an advanced air-clad design that provides a high NA 0.5 pump cladding. This extremely wide acceptance angle ensures that 100% of the pump laser energy is tightly trapped and coupled into the thulium-doped matrix, maximizing absorption efficiency (5.5 dB), lowering operating temperatures, and extending the operational lifecycle of the entire laser asset.

Q5: What are the procurement parameters when evaluating the landed cost of a 5-meter active PM PCF unit?

Answer: Sourcing specialty active fibers like the NKT DC-250/50-PM-Tm requires looking beyond the baseline tax-excluded price of USD 26,840. Institutional buyers and international medical device wholesalers must incorporate specialty optical import duties, temperature-regulated freight handling, and advanced cleaving/splicing preparation tools into their total cost calculations. Because a 5-meter unit is designed for precision prototyping, laboratory system build-outs, or high-value repair inventory, securing a certified supply chain partner like Allwill Group ensures full logistical transparency, compliance documentation, and risk mitigation against custom delays.


Technical Specifications

Parameter Specification
Brand / Manufacturer NKT Photonics
Model Number DC-250/50-PM-Tm
Fiber Type Active Polarization-Maintaining Photonic Crystal Fiber (PM PCF)
Dopant Thulium-doped (Tm)
Structure Double-clad
Operating Wavelength Optimized for the 1960 nm / 2 µm region
Mode Field Diameter (MFD) 38 µm
Attenuation / Gain Metric 5.5 dB
Numerical Aperture (NA) 0.5
Minimum Purchase Unit 5 Meters (Suitable for prototyping, amplifier development, or repair inventory)
Dimensions 500 cm

Listing Terms & Conditions

We ship worldwide, please inquire the shipping rate to your country before placing an order.

We carry all products of this brand in the listing, please let me know if you have any other inquires which is not listed in our store.

All purchases over $1,000 must be paid by wire transfer. We cannot accept international credit card payments for orders over $1,000.

Due to worldwide shipping delays, it is possible that items listed could be on backorder. If the item is unavailable for an extended period, we sincerely apologize for the delay. In this case, we will refund you as soon as we are notified of the backorder and contact you with the confirmation of refund.