THORLABS CA284 Double Linear Polarizer Attenuator PVAE1-A N-BK7WINDOWS

( Brand: Thorlabs ), ( Model: THORLABS CA284 SMA ), ( Type: Double Linear Polarizer Variable Attenuator ), ( Unit Type: Unit ), ( Manufacturer Part Number: CA284 ), ( Intended Use/discipline: Biological Laboratory, Physical Laboratory )

Review THORLABS Inch Double Linear Polarizer Variable Attenuator

The Thorlabs CA284 PVAE1-A Double Linear Polarizer Attenuator N-BK7 with Windows is an advanced optical component designed for precise polarization control and attenuation in various applications. This device combines the functionality of a linear polarizer and a variable attenuator into a single compact unit.

The heart of this component is a pair of high-quality PVA (Polymethyl Methacrylate) linear polarizers with a retardance of /4 at 550 nm. These polarizers are coated with a broadband antireflection (BAR) coating on both sides to minimize reflection and maximize transmission. The polarizers are mounted on precision-machined aluminum frames and are adjustable through a 360-degree rotation mechanism, allowing for easy alignment and optimization of the polarization state.

The attenuation function of the CA284 PVAE1-A is achieved through a set of 10 detachable neutral density (ND) filters with optical densities ranging from 0.1 to 2.5. These filters can be inserted into the unit to provide adjustable attenuation levels while maintaining the linear polarization state. The filters are made of high-quality Schott N-BK7 glass, which is known for its excellent optical properties and low birefringence.

The windows of the CA284 PVAE1-A are also made of N-BK7 glass, ensuring a consistent optical path length and minimizing the reflection and scattering of light. The windows are flat-ground and polished to provide a high degree of surface quality and are sealed with a leak-tight O-ring to prevent any ingress of moisture or contaminants.

The CA284 PVAE1-A Double Linear Polarizer Attenuator N-BK7 with Windows is designed for use in applications such as laser beam manipulation, polarimetry, and spectroscopy. It is suitable for use in a wide range of wavelengths from the near-ultraviolet to the near-infrared. The compact size and rugged construction make it an ideal choice for use in laboratory environments, as well as in industrial and OEM applications.

In summary, the Thorlabs CA284 PVAE1-A Double Linear Polarizer Attenuator N-BK7 with Windows is a versatile and high-performance optical component that offers precise polarization control and adjustable attenuation in a single unit. Its high-quality PVA linear polarizers, broadband antireflection coatings, and neutral density filters ensure excellent optical performance, while its N-BK7 windows provide a consistent optical path length and minimize reflection and scattering. The compact design and rugged construction make it a valuable addition to any laboratory or industrial setup.

Pros and Cons of Buying Thorlabs CA284 PVAE1-A Double Linear Polarizer Attenuator N-BK7 Windows

The Thorlabs CA284 PVAE1-A is a double linear polarizer attenuator with N-BK7 windows, designed for use in various optical applications. Like any other optical component, this product has its advantages and disadvantages. In this analysis, we will discuss these pros and cons to help potential buyers make informed decisions.

1. Dual Polarization: This attenuator features two independent polarization channels, allowing users to process two different polarization states simultaneously, enhancing efficiency and flexibility in various applications.

2. High Extinction Ratio: The CA284 PVAE1-A offers an excellent extinction ratio of 100:1, ensuring minimal unwanted reflections and maintaining the desired polarization state.

3. Broadband Transmission: Its broadband transmission range of 350-1100 nm covers a wide spectrum of applications, making it suitable for various research and industrial applications.

4. Robust Construction: The component's high-quality optical glass windows and rugged housing provide durability and resistance to damage, ensuring long-term use.

5. Wide Angle Acceptance: The CA284 PVAE1-A has a wide acceptance angle, making it suitable for use in applications where the incident angle varies.

1. Limited Attenuation Range: The attenuation range of this component is limited to only 0.1 to 3.0 dB, which might not be sufficient for some high-power applications.

2. Size and Weight: Compared to some other polarizing components, the CA284 PVAE1-A is relatively large and heavy, which may increase the overall size and weight of an optical setup.

3. Cost: This high-performance polarizer attenuator comes with a higher price tag compared to basic polarizer components, making it less accessible for budget-constrained users.

The Thorlabs CA284 PVAE1-A double linear polarizer attenuator N-BK7 windows offers unique advantages, including dual polarization, high extinction ratio, broadband transmission, robust construction, and wide acceptance angle. However, it also has some disadvantages, such as limited attenuation range, size and weight, and cost.

Based on the analysis, this component is recommended for researchers and professionals working on applications that require dual polarization, high extinction ratio, and broadband transmission. Despite its limitations, the CA284 PVAE1-A's exceptional performance and versatility make it a valuable investment for users who can afford the higher cost.

Details:

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part #: ca284 price

• $209.73

specifications quakedental:

• brand: Thorlabs
• model#: THORLABS CA284 SMA
• type: Double Linear Polarizer Variable Attenuator
• unit type: Unit
• manufacturer part number: CA284
• intended use/discipline: Biological Laboratory, Physical Laboratory

shipping quakedental:

• type: Calculated
• carrier: USPS, FedEx
• cost: $0.00
• service: USPS Ground Advantage, FedEx Ground / FedEx Home Delivery, USPS Priority Mail
• transit: 5-8 Days
• class: Standard, Expedited

payments quakedental:

• other
• wallet: Google-pay
• credit card: Visa

general quakedental:

• condition: New Open box
• Business Industrial > Healthcare, Lab Dental > Other Healthcare, Lab Dental

offer quakedental:

• availability: In Stock
• started: August 28, 2025
• quantity: 1
• options: Ship-to-home
• sold: 0
• best offers: True

seller quakedental:

• rating: 99.4%
• # reviews: 16856
• city: Fremont, California

returns quakedental:

• policy: No Returns

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